Operation
Operating Manual PSSu E F 4DI(-T)(-R),
21310-EN-08
27
7
Operation
7.1
Messages
A module error is displayed via the "Err" LED (see section entitled "Display elements"). It is
signalled to the head module and then entered in the
}
Error stack, with PSSu in system environment A
}
Diagnostic log, with PSSu in system environment B.
of the head module.
The module can detect the following errors:
Module error
Explanation
Remedy
Start-up error
Error as the PSSu system starts
up
Change faulty module.
Configuration error
Incorrect module type configured.
The configured hardware registry
does not match the actual hard-
ware registry.
FS communication error
Error during FS communication
Change faulty module.
Bus termination error
There is no terminating plate or
there is a bad contact with the
module bus.
Install a terminating plate with in-
tegrated end bracket or insert the
base modules together correctly.
Temperature error: too warm
Ambient temperature too high:
Error stack entry/diagnostic log
entry
Ensure there is sufficient ventila-
tion in the control cabinet or pre-
vent overload.
Error in the feedback loop
FS input detects an error in the
feedback loop or FS input is de-
fective.
Check FS input, check the config-
uration of the feedback loop,
check the signals, or check the
wiring and contacts.
Input error
Error during the cyclical input test.
Possible cause: Input defective.
Change faulty module.
Test pulse error
Possible causes: Short circuit
between a test pulse and a supply
voltage, or a defective module.
Rectify the short circuit or change
the faulty module.
