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Consult your OMRON representative when using the product after a long period of storage. !WARNING Do not touch the inside of the Inverter. Doing so may result in electrical shock. Doing so may result in injury. !Caution Do not pull on the cables. Doing so may result in damage to the product or malfunc- tion. Not doing so may result in injury or damage to the product. !Caution Be sure to firmly tighten the screws on the terminal block. Not doing so may result in fire, injury, or damage to the product. !Caution Do not connect any power source to the U, V, or W output. Always heed the warnings. Warning information position Warning information position Illustration shows the 3G3RV-B2220 Illustration shows the 3G3RV-A2004 Warning Information For ASIA Model (No suffix) For Europe (-E suffix) Models WARNING WARNING. SYSDRIVE RV Introduction.1-2 Differences by Model. 1-4 Confirmations upon Delivery.1-7 Exterior and Mounting Dimensions.1-12 Checking and Controlling the Installation Site.1-15 Installation Orientation and Space.1-16 Removing and Attaching the Terminal Cover. Settings must be adjusted to the application for optimum operation. Refer to Chapter 4 Trial Operation. K K K K RV-series Inverter Models RV-series Inverters have different models and specifications by the area (Asia and Europe) to support widely. This section explains the differences. K K K K Differences in Hardware For details, refer to Chapter 3 The Digital Operator and Chapter 2 Wiring. Table 1.3 Differences in Hardware Europe Asia (suffixed -E) C4-03 to C4-05: Set the time constant (ms) for Torque value setting Disabled C4-05 the rising start torque value. Operation selection Factory setting Factory setting when Digital Opera- o2-06 0 (Disabled) K K K K Nameplate Information There is a nameplate attached to the side of each Inverter. Motor Approx. Total Voltage Model Cooling Output Figure Mass Inter- Heat Class (-E included) Holes Method External (kW) (kg) Gener- ated 0.75 Natural Not available.http://www.centre-brassens.com/upload/document/3m-200a-case-sealer-manual.xml
Moun Approx. Total Voltage Motor Model ting Cooling Figure Mass Exter- Inter- heat Class Output (-E included) Holes Method (kg) gener- (kW) ated 3G3RV-A2004 0.75 3G3RV-A2007 Natural 3G3RV-A2015 126 280 266 3G3RV-A2022 3G3RV-A2037. K K K K Installation Site Install the Inverter under the following conditions and in a pollution degree 2 environment. Table 1.8 Installation Site Type Ambient Operating Temperature. K K K K Removing the Terminal Cover n Inverters of 18.5 kW or Less Loosen the screws at the bottom of the terminal cover, press in on the sides of the terminal cover in the direc- tions of arrows 1, and then lift up on the terminal in the direction of arrow 2. Not doing so may result in electrical shock. !WARNING Wiring must be performed by authorized personnel. Not doing so may result in electri- cal shock or fire. K K K K Asian Models The connection diagram for Asian models is shown in Fig. 2.2. When using the Digital Operator, the motor can be operated by wiring only the main circuits. DC reactor to improve input power factor (optional) Braking Resistor Unit (optional) Short-circuit bar. Main-circuit Terminals The functions for the main-circuit terminals by symbol are shown in Table 2.1. Be sure to wire correctly. Table 2.1 Main-circuit Terminal Functions Voltage Class 200-V Class. Main-circuit Terminals The functions of the main-circuit termina.s by symbol are shown in Table 2.4. Be sure to wire correctly. Table 2.4 Main-circuit Terminal Functions Voltage Class 200-V Class 400-V Class. Refer to USER’S MANUAL (I526-E1-o) for wire sizes for Braking Resistor Units and Braking Units. Table 2.7 200-V class Wire Sizes Recom- Ter-. Installing a Molded-case Circuit Breaker Always connect the power input terminals (R, S, and T) and power supply via a molded-case circuit breaker (MCCB) suitable for the Inverter.http://www.szeplak.hu/images/upload/3m-200a-manual.xml
When a magnetic contactor is installed on the primary side of the main circuit to forcibly stop the Inverter, however, the regenerative braking does not work and the Inverter will coast to a stop. No general- controllers purpose noise filter can effectively suppress noise generated from the Inverter. Use the speed search function if the MC is operated during operation. If measures for momentary power interrupts are required, use a delayed release MC. Installing a Thermal Overload Relay This Inverter has an electronic thermal protection function to protect the motor from overheating. To reduce radio noise, install noise filters on both input and output sides, and also install the Inverter in a totally enclosed steel box. The cable between the Inverter and the motor should be as short as possible. If this parameter is not changed to disable stall prevention, the system may not stop during decelera- tion. Terminating resistance Analog input A2 swich: Factory settings CN15 Analog output switch Voltage output (Factory setting) Current output CN15. Do not perform a buzzer check on control circuits.You can mount up one Card into each of the three places on the controller card (A, C, and D) shown in Fig 2.34. The Option Clip can be easily removed by holding onto the protruding portion of the Clip and pulling it out. Use shielded, twisted-pair wires for pulse inputs and pulse output monitor wires, and connect the shield to the shield connection terminal. Set the correct number for your model.Check the PG power supply specifications before connecting. The maximum response frequency is 300 kHz.Digital Operator.3-2 Modes.3-5. K K K K Digital Operator Display The key names and functions of the Digital Operator are described below. Digital Operator with LED Display (3G3IV-PJVOP161) Drive Mode Indicators FWD: Lit when there is a forward run command input. These indicators will light and flash to indicate operating status.http://www.drupalitalia.org/node/66393
The RUN Key indicator will flash and the STOP Key indicator will light during initial excitation of the dynamic brake. K K K K Inverter Modes The Inverter's parameters and monitoring functions are organized in groups called modes that make it easier to read and set parameters.The Inverter is equipped with 5 modes. The 5 modes and their primary functions are shown in the Table 3.2. Press the MENU Key from the mode selection display to switch between the modes.The following monitor displays are possible in Drive Mode: The frequency reference, output frequency, output current, and output voltage, as well as fault information and the fault history. Parameters can be changed from the setting displays. The parameter will be written and the monitor display will be returned to when the ENTER Key is pressed after changing the setting. Parameters can be changed from the setting displays. The parameter will be written and the monitor display will be returned to when the ENTER Key is pressed after changing the setting. MENU Key pressed to enter Drive Mode. MENU Key pressed to enter Quick Program- ming Mode. Of the Environment Mode settings, only A1-02 will be displayed if it has been changed. Always perform autotuning before starting operation when using open-loop vector control mode.Cautions and Warnings.4-2 Trial Operation Procedures. 4-4 Adjustment Suggestions.4-18. START Installation Wiring Set power supply voltage. Turn ON power. Confirm status. Initialize parameters Basic settings. K K K K Application Confirmation First, confirm the application before using the Inverter.Set A1-03 to 2220 when initializing a 2-wire sequence. Table 4.1 Initializing Parameters Step Operator Screen Displays Description Turn ON the power. Press to shift to Advanced Programming MENU Mode. Refer to Chapter 3 Digital Operator and Modes for Digital Operator operating procedures and to Chapter 5 Parameters and Chapter 6 Parameter Settings by Function for details on the parameters.ALLIAKSESUAR.COM/images/3gm30-manual-download.pdf
Motor protection 5-56 L1-01 0: Disabled 0 to 3 selection 6-47. Make the settings required by the con- trol method.Autotuning the Inverter is fundamentally different from autotuning the servo system.For the region greater than FA, defined as the constant output range, output torque is reduced because the voltage does not increase for an increase in the frequency. All the parameters that can be set in quick programming mode can also be displayed and set in advanced programming mode. This table lists only the most commonly used parameters. Table 4.6 Adjusted Parameters Recom- Control Name (Parameter. Parameter Descriptions.5-2 Digital Operator Display Functions and Levels.5-3 Parameter Tables.5-9. K K K K Description of Parameter Tables Parameter tables are structured as shown below. Here, b1-01 (Frequency Reference Selection) is used as an example. Name Control Methods Change Param- Open during. Function Display Page MENU Drive Mode Status Monitor Parameters Monitor 5-75 Fault Trace Fault Trace 5-79 Inverter can be operated and Fault History Fault History. The parameters displayed in quick programming mode are listed in the following table. These, and all other parameters, are also displayed in advanced programming mode. If Stall pre- deceleration time is too short, a vention main circuit overvoltage may selection result.) during. Name Control Methods Change. No initializing 1110: Initializes using the Parameters 0 to A1-03 103H 2220: Initializes using a. Name Control Methods Change Param- during Setting Factory Description Register Page eter Open Range Setting Opera- with Number Loop Display tion 0: Disabled PID control 1: Enabled (Deviation is D- mode selec- controlled.) Name Control Methods Change Param- during Setting Factory Description Register Page eter Open Range Setting Opera- with Number Loop Display tion Energy-sav- Select whether to enable or ing mode disable energy-saving con- selection. Name Control Methods Change.
Name Control Methods Change Param- during eter Setting Factory Description Register Page Open Num- Range Setting Opera- with Loop Display tion S-curve character- istic time 0.00 at acceler- C2-01. Name Control Methods Change Param- during Setting Factory Description Register Page eter Open Range Setting Opera- with Number Loop Display tion Slip com- Used to improve speed accu- pensation racy when operating with a gain. Name Control Methods Change Param- during Setting Factory Description Register Page eter Open Range Setting Opera- with Number Loop Display tion Sets torque compensation gain as a ratio. Torque Usually setting is not neces- compensa-. Name Control Methods Change Param- during Setting Factory. Name Control Methods Change Param- during Setting Factory Description Register Page eter Open Range Setting Opera- with Number Loop Display tion Frequency Set the output frequency reference upper limit as a percent, tak- 0.0 to. Name Control Methods Change Param- during Setting Factory Description Register Page eter Open Range Setting Opera- with Number Loop Display tion Sets whether or not frequen- cies on hold will be Frequency recorded. Name Control Methods Change Param- during Setting Factory Description Register Page eter Open Range Setting Opera- with Number Loop Display tion Set the Inverter output volt- Field weak- age when the field weaken- ening level. Output voltage (V) 200.0 0.0 to voltage E1-05 304H. Name Control Methods Change Param- during eter Setting Factory Description Register Page Open Num- Range Setting Opera- with Loop Display tion Motor 2 control. Name Control Methods Change Param- during Setting Factory Description Register Page eter Open Range Setting Opera- with Number Loop Display tion Motor 2 Sets the motor rated current rated cur- in 1 A units. Name Control Methods Change Param-. Frequencies above that set PG Over- for F1-08 (set as a percent- spd Level age of the maximum output.
Name Control Methods Change Param- during Setting Factory Description Register Page eter Open Range Setting Opera- with Number Loop Display tion Channel 1 monitor selection F4-01. Name Control Methods Change Param- during Setting Factory Description Register Page eter Open Range Setting Opera- with Number Loop Display tion Not used F5-01 399H DO Ch1. Name Control Methods Change Param- during Setting Factory Description Register Page eter Open Range Setting Opera- with Number Loop Display tion DeviceNet 0: Decelerates to a stop fault opera- using C1-02 deceleration tion selec-. Name Control Methods Change. Name Control Methods Change Param- during Setting Factory Description Page eter Register Open Range Setting Opera- with Number Loop Display tion Monitor Sets the number of the moni- selection tor item to be output (U1- (terminal. Set H6-06 to 2, and H6-07 to 0 to 1440. If deceleration time is vention too short, a main circuit selection overvoltage may result.) during decel 1: Enabled (Deceleration is stopped when the main. Name Control Methods Change Param- during Setting Factory Description Register Page eter Open Range Setting Opera- with Number Loop Display tion Number of Sets the number of auto auto restart restart attempts. Name Control Methods Change Param- during eter Setting Factory Description Register Page Open Num- Range Setting Opera- with Loop Display tion Forward drive torque 0 to limit L7-01 200. L8-15 0 or 1 4BBH low speeds 1: OL2 characteristics at low speeds enabled. Control Name Change Methods Param- during Setting Factory Description Register Page eter Range Setting Opera- Number with tion Display High-slip braking Sets the frequency width for decelera- deceleration during high-slip tion fre-. Name Control Methods Change Param- during Setting Factory Description Register Page eter Open Range Setting Opera- with Number Loop Display tion Copy func- 0: Normal operation tion selec- 1: READ (Inverter to.
Name Control Methods Output Signal Level Dur-. Open Description ing Multi-Function Analog Register eter Loop Unit with Number Output Vec- Display Software No. (flash U1-14 (Manufacturer’s ID number) (Cannot be output.) memory) FLASH ID Terminal Monitors the input voltage of A1 input the voltage frequency refer- 10 V: 100 (10 V) Open Description ing Multi-Function Analog Register eter Loop Unit with Number Output Vec- Display Output volt- Monitors the Inverter inter- age refer- nal voltage reference for 10 V: 200 VAC (400 VAC) ence (Vd) U1-27 motor excitation current con-. Name Control Methods Output Signal Level Param- Min. Open Description During Multi-Function Register eter Loop Unit with Number Analog Output Vec- Display Current fault The contents of the current U2-01 fault. Open Description During Multi-Function Register eter Loop Unit with Number Analog Output Vec- Display Torque ref- The reference torque when the erence at previous fault occurred. The fault U2-10 0.1 motor rated torque corresponds Torque Ref- to 100. Open Description ing Multi-Function Analog Register eter Loop Unit with Number Output Vec- Display 10th previ- ous fault U3-14 10th previous fault 809H Fault Mes- sage 10 Accumula- tive operat- ing time at Accumulative operating 5th previ- U3-15. The setting ranges for the Inverter carrier frequency, overload tolerance, and maximum output frequency depend on the setting in C6-01. CT: Low Carrier, Constant Torque VT: High Carrier, Variable Torque Variable Torque Constant Torque Torque Torque Motor speed. If the wiring distance between Inverter and motor is long: Set the carrier frequency low. (Use the following values as guidelines. Even when the overload current falls to below 120, OL2 (Inverter overload) will be detected. The Inverter overload current reduction level is shown below. K K K K Selecting the Frequency Reference Source Set parameter b1-01 to select the frequency reference source.The voltage range canbe selected by setting H3-01.
Input the cur- rent (4 to 20 mA) in control circuit terminal A2. When H3-09 (Multi-Function Analog Input Terminal A2 Signal Level Selection) is set to 0 (factory setting) the input on A2 is added to A1. The following example of a multi-function input terminal function shows a 9-step operation using multi-step references 1 to 3 and jog frequency selection functions. K K K K Selecting the Run Command Source Set parameter b1-02 to select the source for the run command.Set b2-03 to 0 to disable the DC injection brake at start. Set the DC injection brake current using b2-02. At 10 V input (voltage) or 20 mA input (current), 100 of the Inverter rated current will be applied. DC injection brake voltage level Inverter rated current If you set this parameter to 7 and use overtorque detection. K K K K Setting Acceleration and Deceleration Times Acceleration time indicates the time taken for the output frequency to climb from 0 to 100. Deceleration time indicates the time taken for the output frequency to reduce to 0. When output frequency Using the Inverter, you can set an S-curve characteristic time for each of the following: Acceleration start time, deceleration start time, acceleration end time, and deceleration end time. If you set L3-01 to 1 (enabled) and the Inverter output current exceeds the -15 level of the set value in L3- 02, the acceleration rate will begin to slow down. This function automatically lengthens the deceleration time with respect to the bus voltage, even if the decel- eration time has been set to a considerably small value. K K K K Adjusting Analog Frequency References Gain and bias are among the parameters used to adjust analog inputs.Frequency gain Multi-function analog input terminal A2 input level. K K K K Limiting Maximum Output Frequency If you do not want the motor to rotate above a given frequency, use parameter d2-01.
Set the upper limit value of the Inverter output frequency as a percent, taking E1-04 (Maximum Output Fre- quency) to be 100. Output frequency lower level Max. K K K K Reducing Motor Speed Fluctuation (Slip Compensation Function) When the load is large, the amount of motor slip also grows large and the motor speed decreases. The slip compensation function controls the motor at a constant speed, regardless of changes in load. Adjust the slip compensation gain using the following procedure. For the slip compensation function operates during regeneration, the braking option (braking resistor, Braking Resistor Unit, and Braking Unit) may be useful to momentarily increase the regenerative amount.Normally, there is no need to Torque compensation gain change this parameter. The speed is compensated by the amount of fluctuation from the current feedback torque.K K K K Limiting Motor Torque (Torque Limit Function) The motor torque limit function is enabled only in open-loop vector control. The output torque to the motor is calculated internally in open loop vector control. The Torque Limit Function limits this internal torque value to output within a user set value. This set value is the electronic thermal base current.The induction motor's cooling abilities differ according to the speed control range. If, after operating the motor continuously at the rated current, a 150 overload is experienced, set the (hot start) electronic thermal protection operation time. The factory setting is resistance to 150 for 60 seconds.Set the motor temperature input filter time parameter in L1-05. If the motor overheats, the OH3 and OH4 error codes will be displayed on the Digi- tal Operator. K K K K Restarting Automatically After Power Is Restored Even if a temporary power loss occurs, you can restart the Inverter automatically after power is restored to continue motor operation.
K K K K Speed Search The speed search function finds the actual speed of the motor that is rotating using inertia, and then starts smoothly from that speed. To perform speed search when inputting the run command, set b3-01 to 1 or 3. K K K K Performing Overheating Protection on Mounted Braking Resistors Perform overheating protection on Inverter-mounted braking resistors (3G3IV-PERFo). When overheating in a mounted braking resistor is detected, an alarm RH (Mounted braking resistor overheat- ing) is displayed on the Digital Operator, and the motor coasts to a stop. You can receive Inverter overheating pre-alarms in units of 10 The following overheating pre-alarm warnings are available: Stopping the Inverter as error protection, and continuing operation, with the alarm OH (Radiation fins overheating) on the Digital Operator flashing. K K K K Temporarily Switching Operation between Digital Operator and Control Circuit Terminals You can switch the Inverter run command inputs and frequency reference inputs between local (i.e., Digital Operator) and remote (input method using b1-01 and b1-02). Here, frequency references from analog frequency reference termi- nal A1 becomes the frequency reference lower limit. If using a combination of the frequency reference from terminal A1 and the frequency reference lower limit set in either parameter d2-02 or d2-03, the larger lower limit will become the frequency reference lower limit. K K K K Using the Analog Monitor Parameters This section explains the analog monitor parameters.AO Ch1 Select Monitor selection: Set the number of the monitor item to be output. Set the pulse frequency output when 100 frequency is output to H6-07. Set H6-06 to 2, and H6-07 to 0, to output the frequency synchronous with the Inverter's U-phase output.Item Specifications Interface RS-422, RS-485 Communications Cycle Asynchronous (Start-stop synchronization) Baud rate: Select from 1,200, 2,400, 4,800, 9,600, and 19,200 bps.
Data length: 8 bits fixed Communications Parameters Parity: Select from even, odd, or none. If you set 0, commands from the master will be broadcast (i.e., the Inverter will not return responses). Function Code The function code specifies commands. There are three function codes, as shown below. Command Message Response Message Function Code. Reading Storage Register Contents (Function Code: 03 Hex) Read the contents of the storage register only for specified quantities whose addresses are consecutive, starting from a specified address. The contents of the storage register are separated into higher place 8 bits and lower place 8 bits, and comprise the data within response messages in address order. You can set user-defined test code and data values. The following table shows a message example when performing a loopback test with the slave 1 Inverter. INFO nData Tables The data tables are shown below. The types of data are as follows: Reference data, monitor data, and broadcast data. Contents Reference selection settings Bit 0 Not used Bit 1 PID target value (register 0006H) 1: Enabled 0: Disabled Bits 3 to B Not used 000FH Broadcast data S5 1: Enabled 0: Disabled Broadcast data S6 1: Enabled 0: Disabled Broadcast data S7 1: Enabled 0: Disabled Not used Note Write 0 to all unused bits. Communications error details can also be read by using the register numbers given in the Register column in the U: Monitor parameter table. Broadcast Data The following table shows the broadcast data. Error Code Contents Function code error A function code other than 03H, 08H, or 10H has been set by the PLC.This function is called the self-diagnosis function. The self-diagnosis function connects the communica- tions parts of the send and receive terminals, receives the data sent by the Inverter, and checks if communications are being performed normally. The data in each register is sent as 2-byte data. It is processed under the following rules and sent in hexadecimal.
When writing the data, be sure to set all of these bits to 0. These bits when read are set to 0. No Data Settings in Unused Registers Registers described “not used”. Therefore, the CPU Unit can just execute the PMCR instruction to send or receive the data, with no need to write ladder programs for the communications protocol. Serial Communications Board CPU Unit SYSDRIVE 3G3RV DSR message Send PMCR Instruction Reception Response Fig 6.62 Creating a Message. Response notify method Select “notify by scan” for communictions with the 3G3RV. Serial Communications Board CPU Unit SYSDRIVE 3G3RV Step 00 DSR message (Write the RUN command PMCR instruction and frequency response.) A step may not include a response if it is a broadcast message. In the case of repetitive actions to issue the RUN command and frequency reference to the Inverter and read the status of the Inverter, for example, the actions to give the RUN command and frequency reference consti- tute one step. PMCR port 000 to 999 BCD 1: Port A 2: Port B Word Data No.The sequence number is automatically set. Communication Sequence The label (name) of the sequence. Input an appropriate, easy-to-distinguish name. Link Word Set the area for sharing the data between the Programmable Controller and Communications Board. Always set this parameter to Yes for communications with the 3G3RV. Next Determine which step is to be processed next or finish the operation after the step finishes normally. In this example, step 00 is set to Next and step 01 is set to END because the sequence completes be executing steps 00 and 01. All communications with the 3G3RV are performed in byte units. Select 1 Byte and BIN. Select No for read- ing data because there is no data to be read. Address Set the addresses of the Slaves.All communications with the 3G3RV are performed in byte units. Select 1 Byte and BIN. Select No for read- ing data because there is no data to be read. Address Set the addresses of the Slaves.
Word Slave 1 function Word Slave 2 function Word Slave 3 function 01100 During RUN 01200 During RUN 01300 During RUN 01101 Zero speed 01201 Zero speed. Use this information as a reference when deciding the number of Slaves to be connected to one network, and when considering the timing of input and output signals. K K K K Using the Timer Function Multi-function contact input terminals S3 to S7 can be designated as timer function input terminals, and multi- function output terminals M1-M2, M3-M4, M5-M6, P1-PC, and P2-PC can be designated as timer function output terminals. By combin- ing proportional control (P), integral control (I), and derivative control (D), you can even control targets (machinery) with play time. Select the method by setting parameter b5-01. Set Value Control Method PID output becomes the Inverter output frequency, and D control is used in the difference between PID target value and feedback value. PID output becomes the Inverter output frequency, and D control is used in the PID feedback value. Suppressing Overshoot If overshoot occurs, reduce derivative time (D), and increase integral time (I). Response Before adjustment After adjustment Time Set a Rapidly Stabilizing Control Condition To rapidly stabilize the control even if overshoot occurs, reduce integral time (I), and lengthen derivative time (D). Shorten the derivative time (D) to suppress the vibration. If vibration continues even when the derivative time (D) is set to 0.00 (D control disabled), reduce the propor- tional gain (P), or increase the PID primary delay time constant. If PID feedback is lost, the Inverter output frequency may accelerate to the maximum output frequency. When setting b5-12 to 1 and the status of the PID feedback value detection level in b5-13 is insufficient and continues for the time set in b5-14, an FbL (PID feedback reference lost) alarm will be displayed on the Digi- tal Operator and Inverter operation will continue.
The parameters to be adjusted are different for each. Refer to the following when making adjustments.If autotuning does not complete normally, set them manually.Make (enter) settings referring to the motor test report. Motor Rated Current Setting Set E2-01 to the rated current on the motor nameplate. Motor Rated Slip Setting Set E2-02 to the motor rated slip calculated from the number of rated rotations on the motor nameplate. This set value will be the standard value for the protection function and similar functions.If E1-03 is set to anything other than F, you can only refer to parameters E1-04 to E1-10.K K K K Setting Digital Operator Functions You can set Digital Operator-related parameters such as selecting the Digital Operator display, multi-function selections, and copy functions.Change the set values from the Inverter factory settings, and then set o2-03 to 1. Set A1-03 (Initialize) to 1110 to initialize the Inverter parameters using the user-set initial values in memory. To clear the user-set initial values in memory, set o2-03 to 2. Set o3-02 (Read permitted selection) to 1 (read permitted). Table 6.6 READ Function Procedure Step Digital Operator Display Explanation Press the Menu Key, and select advanced pro-. If you set one of the parameters H1-01 to H1-05 (multi-function contact input terminal S3 to S7 function selection) to 1B (write parameters permitted), you can write parameters from the digital operator when the ter- minal that has been set is ON. Password setting This parameter is not usually displayed. When the 0 to A1-05 password (A1-04) is displayed, hold down the. PG Overspd Level Frequencies above that set for F1-08 (set as a per- centage of the maximum output frequency) that Overspeed detection delay continue to exceed this frequency for the time set. Set the dividing ratio for the PG pulse monitor output. The set value is expressed as n for the higher place digit, and m for the lower place 2 digits. Protective and Diagnostic Functions.