Omron SYSDRIVE RX Series User Manual page 207

0-Hz Detection Signal
•This function outputs a detection signal when the Inverter's output frequency falls below the 0-Hz
detection value set in 0-Hz detection level C063.
Parameter No. Function name
Multi-function output
C021 to C025
terminal selection
Relay output (MA, MB)
C026
function selection
C063 0-Hz detection level
Related functions
•Enabled when "21" (ZS) is allocated to any of multi-function output terminals P1 to P5 (C021 to
C025) or the relay output terminal (C026).
When "VC", "special VP", "free V/F", "sensorless vector control", or "0-Hz sensorless vector
control" is selected as the control method, this function works for the Inverter's output frequency.
When the control method is "sensor vector control", this function works for the motor rotation
frequency.
Alarm Code Output (AC0 to AC3)
•This function outputs a 3-bit or 4-bit code signal to indicate the cause of an Inverter trip.
Parameter No. Function name
C062 Alarm code selection
•If "01" (3-bit) or "02" (4-bit) is selected in alarm code selection C062, multi-function output terminals
P1 to P3, or P1 to P4, are forced to output an alarm code.
The following table shows the output alarm codes.
Multi-function output terminals
14 13 12 11
AC3 AC2 AC1 AC0
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
21: ZS (0-Hz signal)
0.00 to 100.0:
Set a frequency to be detected as 0 Hz.
00: Disabled
01: 3-bit code
02: 4-bit code
With 4-bit code selected
Factor code Trip cause
Normal Normal
E01 to E03,
Overcurrent protection
E04
Overload protection
E05, E38 Overload protection in a low
speed range
Overvoltage/Incoming
E07, E15
overvoltage protection
E09 Undervoltage protection
Momentary power interruption
E16
protection
E30 IGBT error
Data Default setting
A044, A244, A344
Data Default setting
With 3-bit code selected
Factor code
Normal
E01 to E03,
E04
E05
E07, E15
E09
E16
E30
4-2 Function Mode
Unit
⎯
⎯
05
Hz
0.00
Unit
⎯
00
Trip cause
Normal
Overcurrent protection
Overload protection
Overvoltage/Incoming
overvoltage protection
Undervoltage protection
Momentary power
interruption protection
IGBT error
4-98
4