- 23 -
IM-ENG-114/GB
NO
Initial condition:
Output voltage 0
Initial condition:
Output low
(from 20 to 22 Volt)
Initial condition:
alarm ON
LED indicator
“POWER ON”?
LED indicator
“POWER ON”?
Are Line 1 and 2
LED indicators ON?
Cause:
power
lines
Are other
“FAN OK“
indicators OFF?
Fault in
respective
Fan or fuse
Disconnect load.
Is 24V output OK?
Are other
“OVERLOAD“
indicators ON?
Gradual load
increase.
Is load correct?
Corrective procedure:
substitute faulty power module
(LED indicator "OUT ON" OFF)
NO
YES
YES
YES
NO
YES
NO
Corrective procedure:
substitute line
module
Cause: overload
or shortcircuit on
load create excess
current
NO
YES
NO
YES
YES
NO
YES
Are other
“OUT ON“
indicators OFF?