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UNIFREM v.3.41x
10 May 2017
Page 19 from 180
Name
[ID]
Description
Dim.
AO3
[703]
Recalculated signal value on the terminals of the analog output X1:23 and X1:24. Using the
parameter AO3 Signal [365] (page 84), select the quantity according to which the analog
output level is changed. Not available for the UNIFREM 400 M converters.
Parameters of the analog input can be configured in the parameter group [372] (page 83).
A
4.3.5 IRC1,IRC2,ARC
Group of parameters number [1001]
Diagnostic set of quantities for the IRC and ARC speed sensors inputs.
MENU \ DIAGNOSTICS \ INPUTS AND OUTPUTS \ IRC1,IRC2,ARC
Name [ID]
Description
Dim.
Freq. IRC1 [434]
Rotor frequency defined by the rotation speed sensor from the IRC1. It is the
mechanical frequency, its value can be several times lower than electrical frequency.
The ratio between the frequencies is defined by the number of pole couples ( Nr of
motor poles [1049] (page 47)). For correct evaluation of the speed from the IRC
sensor, it is necessary to correctly configure IRC1 pulses [436] (page 84).
Freq. IRC2/ARC
[803]
Rotor frequency defined by the rotation speed sensor from the IRC2. It is the
mechanical frequency, its value can be several times lower than electrical frequency.
The ratio between the frequencies is defined by the number of pole pairs ( Nr of
motor poles [1049] (page 47)). For correct evaluation of the speed from the IRC
encoder, it is necessary to correctly configure IRC2 pulses [827] (page 85).
Freq. IRC1 gear
[1540]
Speed from IRC1 sensor at gear output.
Hz
Freq. IRC2/ARC
gear [1541]
Speed from IRC2/ARC position sensor at gear output.
Hz
Freq. IRC1-IRC2
gear [1086]
Frequency difference between IRC1 and IRC2 at gear output.
This quantity is filtered by the first order filter configured by the parameter Filter
dIRC1,2 [1083] (page 107).
Chyba
IRC
[1623]
Status word of IRC fault.
□ ERR output EM | □ Incorrect reverses of IRC1 | □ Incorrect reverses of IRC2 | □ Disconnected / broken
IRC | □ Speed step change
IRC1
position
[1286]
Position from IRC1 sensor in revolutions.
IRC1
position
gear [1535]
Position from IRC1 sensor at gear output in revolutions.
IRC2/ARC
position [1287]
Position from IRC2 or ARC sensor in revolutions.
IRC2/ARC
position
gear
[1536]
Position from IRC2 or ARC sensor at gear output in revolutions.
ARC angle [290]
Angle within one revolution evaluated from absolute position sensor in degrees.
Freq. ARC [291]
ARC rotor frequency evaluated by the RM-SERVO extension module.
Hz
Freq.
ARCmaster
[1617]
ARCmaster device rotor frequency evaluated by the RM-SERVO extension module. Hz
Servo
CRC
errors [1542]
CRC error counter of the communication between the converter and RM-SERVO
module.
Servo
error
[1608]
Fault of the absolute encoder or RM-SERVO extension module.
□ CRC
Too many CRC errors.
□ Inverter
Module is not receiving valid data from the converter.
□ Eeprom
Memory error of the module.
□ Modbus
Modbus master is not communicating with the module.
□ CAN
CAN timeout.
□ EnDat timeout
EnDat encoder is not communicating with the module.