Possible Reasons For The Alarms - Siemens SWT-3000 Equipment Manual

Installation and Commissioning

Possible reasons for the alarms

Table 61:
Relay
GALR
(general alarm)
EALR
(receive alarm)
NDAL
(Pre-Alarm)
Page - 62
Alarm relays and possible alarm reasons
Possible Reason
Normal operation interrupted
PU3f Measuring point alarm (MAL)
Transmission path faulty no alternative path
Primary and secondary path not available.
IFC Test operation
Module alarm resp. configuration alarm
Guard alarm, transmission path not available no
alternative path.
Guard alarm Primary and secondary path not
available
Time limit for the command output exceeded
Output of the unblocking impulse (when acti-
vated) at operation mode 3...5x
Primary path not available but secondary path
existing.
Primary and secondary path not available
Power fail of one power supply in case of redun-
dant power supply
LIA signal to noise alarm
LID bit error alarm (bit error rate is > 1x10
Switch NU-Relais on GAL is activated in the
alarms control configuration
Time limit for the command input exceeded
Edition p3_3_2x 08/09
SWT 3000 Equipment Manual
Remark
additional Pre-Alarm
additional EALR
additional EALR and Pre-Alarm
OK LED on PU3 green blinking
OK LED red
additional GALR
additional GALR and Pre-Alarm
The command output is interrupted. The
alarm is deactivated when the command
transmission is cancelled
Switch over to the alternative path
additional GALR and EALR
No interrupt as long as the second power
supply is working
Command outputs blocked with default
settings
-3
) Command outputs blocked with default
settings
Additional GALR ref. to table 62 on page
64. This function is not available when
t wo transmission path are used!
The command transmission is interrupted.
The alarm is deactivated when the com-
mand input is cancelled.
© SIEMENS AG 2008