ControlMaster CM10, CM30 and CM50
Universal process controllers,
1
/
8
,
1
/
4
and
1
/
2
DIN
7 Advanced Level
96
IM/CM/S–EN Rev. R
7.9.1 Diagnostic Messages
Icon
Number /
Message
Possible Cause
Suggested Action
242.004
ADC 1 Failed
Temporary or permanent failure of analog to digital
converter on the main I/O board.
Cycle power to device.
If problem persists replace main I/O board, contact local
service organization.
240.005
ADC 2 Failed
Temporary or permanent failure of analog to digital
converter on the option board.
Cycle power to device.
If problem persists replace option board, contact local
service organization.
250.000 (248.001)
PV 1 (2) Failed
Problem with Input assigned to Loop 1 (2) PV. Broken
sensor leads, defective input source or input signal out
of permitted range.
Check wiring. Check input source.
Check if input signal is outside permitted limits.
246.002
(244.003)
RSP 1 (2) Failed
Problem with Input assigned to Loop 1 (2) Remote
Setpoint. Broken sensor leads, defective input source
or input signal out of permitted range.
Check wiring. Check input source.
Check if input signal is outside permitted limits.
222.014
(220.015)
CJ 1 (2) Failed
Error in Cold junction measurement associated with
AIN1 (AIN3). Wiring fault or defective sensor.
Check cold junction device is correctly fitted.
Ensure Analog I/P 2(4) is turned off.
Replace CJ sensor.
226.012
(224.013)
DV 1 (2) Failed
Problem with input assigned to Loop 1 (2) disturbance
variable. Broken sensor leads, defective input source
or input signal out of permitted range.
Check wiring. Check input source.
Check if input signal is outside permitted limits
Table 7.1 Diagnostic Messages