
3. Functionality
647C
20
3.6 Diagnosis of System
3.6.1 The ERROR LISTING menu
If the status line indicates the occurrence of errors, details about these errors and the affected
channels can be retrieved from the ERROR LISTING menu.
MGC 647C V3.0
ERROR LISTING CHANNELS
TRIP LOW LIMIT 12
TRIP HIGH LIMIT 2
INPUT OVERFLOW
INPUT UNDERFLOW
OUTPUT OVERFLOW
OUTPUT UNDERFLOW
LIST MODE HISTORY
03 ERRORS FLOW ON INPUT DIRECT
Figure 11
Error messages:
-
TRIP LOW LIMIT
The actual flow is lower than the low limit. (see also TRIP LIMITS menu, page 22)
-
TRIP HIGH LIMIT
The actual flow is higher than the high limit. (see also TRIP LIMITS menu, page 22)
-
INPUT OVERFLOW / INPUT UNDERFLOW
The input signal of the displayed channel is higher than 10V or lower than
–10V.
-
OUTPUT OVERFLOW / OUTPUT UNDERFLOW
The output signal is higher than 10 V or lower than –10V.
Since the calculated value cannot be transmitted to the controller, this can disturb the
regulation behavior of closed loops.
Two display modes are possible in ERROR LISTING. The HISTORY mode stores all errors
having occured until leaving the error listing. In the ACTUAL mode only actual valid errors
are displayed.
Содержание 647C
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