8 Troubleshooting
Mycom S CLM 153
94
EHauser
8.2
Response of outputs to errors
8.2.1
Response of current outputs
If an error occurs in the system, an error current is output at the current outputs. You can
adjust the value of this error current in the Alarm menu (see page 44).
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 88, editing errors on page 45).
In "NAMUR" mode, failure messages (E 001 – E 029) always trigger an alarm.
Behaviour with standard setting
Behaviour with NAMUR setting
8.2.3
Response of contacts to power failure
In the "Set up 1" menu
➞
"Contacts", you can define the contacts as NC contacts or NO
contacts (s. page 38). In the case of a power failure, the contacts will act according to
the setting you make.
8.3
Spare parts
For your own safety, always use genuine spare parts. Only genuine spare parts ensure
the correct function, precision and reliability after repair.
You receive all spare parts in the form with a unique code, optimally adapted packaging
including ESD protection for modules and a set of instructions.
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
