8 Troubleshooting
TopCal S CPC 300
124
EHauser
8.2
Response of outputs to errors
8.2.1
Current output behaviour
If an error occurs in the system, an error current is output at the current output. You can
adjust the value of this error current in the Alarm menu (see page 48).
If you have configured the controller for functioning with a current output, no error
current is output on this current output should an error occur.
8.2.2
Response of contacts to errors
You can select the assignment of which instrument error messages trigger an alarm
individually for each error message (see table on page 112, editing errors on page 48).
In "NAMUR" mode, failure messages (E 001 – E 029) always trigger an alarm.
Behaviour with standard setting
Behaviour with NAMUR setting
No current output sig-
nal
Jumper incorrectly set
Change coding
See Chap. 8.4.2
Current output stage defective
(Module: M3CH-x)
Test with integrated current simula-
tion, connect mA meter directly to
current output
If test negative:
Replace module M3CH-x
(Check variants, see spare parts list
in Chap. 8.3)
Instrument with PROFIBUS
®
inter-
face
PROFIBUS
®
instruments do not have
a current output
For information, see "DIAG" / inter-
nal data
Error
Possible cause
Tests and / or remedial
action
Equipment, spare parts,
personnel
Instrument status
Alarm relay
Limit value / Controller
Normal operation
picked-up (Fail-safe behaviour)
Appropriate
configuration and
operating status
Alarm
Dropped out
Voltage-free
Dropped out
Dropped out
Instrument status
Alarm relay
Maintenance
relay
Function
check
Limit value/Controller
Normal operation
Picked-up
(Fail-safe
behaviour)
Appropriate
configuration and
operating status
Failure
Dropped out
Maintenance required
Picked up
Function check
Picked up
Voltage-free
Dropped out
Dropped out
