Fig. 54: Error diagram no. 2
Starting reciprocating/screw comp ressor in MANUAL mode, continued
Check that input Starting request feedback,
terminals (X3/19-20), is closed. Can also be
checked in picture Service/Diagnosis/
Hardware/Digital input/PMS feedback = 1 .
Press to start compressor.
Light diode on front flashes
green
Check emergency stop and TÜV
pressure control, if any. There
must be connection between
terminals (X13/1-10).
Does
compressor
start?
PMS
error mes-
sage re-
ceived
Input
closed?
Try again
Apply jumper, or check connec-
tions from terminals (X12/17-18)
to power management system.
Is
digital
output compressor
motor start activated
when trying to start
(Digital output
diode no. 1
is on)?
Contact
Johnson Controls
Denmark
Check connection from terminals (X12/
1-2) to motor starter
Connection
OK?
Correct wiring
connection
Is there feed-
back on termi-
nals (X3/1-2)
from motor
guard? Digital
input diode no.
1 is on.
Check pre-fuses and control
voltage of motor guard.
1
OK
Correct wiring
connection
3
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
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