S&C Instruction Sheet 653-506
23
Warning Alarms
Description
Module Fault
Indicates a power module has a condition that renders
it unavailable to operate
Troubleshooting Tip:
A module fault could be an effect
and not a cause in most events . Rule out all other
causes of the alarm .
Output CB Alarm
Indicates the output circuit breaker is open when it
should be closed, or closed when it should be open
Troubleshooting Tip:
Contact S&C Electric Company .
PES Blower Alarm
Indicates the PES blowers are not running as expected;
the system will go to bypass if the temperature has
exceeded 104°C (219°F)
Troubleshooting Tip:
Contact S&C Electric Company .
PES Blower Warning
Indicates the PES blowers should be running but are
moving less air than expected and the temperature has
exceeded 93°C (199°F)
Troubleshooting Tip:
Contact S&C Electric Company .
PES Over Temp Warning
Indicates the PES is at 90°C (194°F) or higher
Troubleshooting Tip:
This could be caused by
restricted air flow caused by a dirty or obstructed
air filter or a malfunctioned blower . Check these
components to make sure they are clean and
functioning properly .
PES Over Temperature
Indicates the PES is at 100°C (212°F) or higher
Troubleshooting Tip:
This could be caused by
restricted air flow caused by a dirty or obstructed
air filter or a malfunctioned blower . Check these
components to make sure they are clean and
functioning properly .
Smoke Warning
Indicates a single smoke detector is activated
Troubleshooting Tip:
Investigate the bays to see
whether there is a fire .
Test In Bypass Req
Indicates the system has been placed in the
Test in
Bypass state
Troubleshooting Tip:
No action is required .
Test Run Request
Indicates a test run of the system was requested
Troubleshooting Tip:
No action is required .
Time Not Set
Indicates the time is not set in the master control board
Troubleshooting Tip:
Contact S&C Electric Company .
Transformer Over Temp
Indicates the transformer compartment is at or above
88°C (190°F)
Troubleshooting Tip:
This could be caused by
restricted air flow caused by a dirty or obstructed
air filter or a malfunctioned blower . Check these
components to make sure they are clean and
functioning properly .
Operation
Table 3. Warning alarms—continued.
