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Rev. 10-7-16
Part #C-00140
GT20 Control Wiring and Programming Manual
Troubleshooting
10-43
Table 10-3
Safety Sensors
No
Description
Cause
Elimination
Checking Time Reaction
E20 01 SER Test
SER Test signal unsuccessful SER short-circuit to the
earth. Check the cabling of
the sensor or the jumper
Prior to closing
A
02
SER too slow
SER reacts too slowly Check
the cabling of the sensor
Check for polarity reversal/
test signal
E20-01 and
E20-02 together,
no line in between,
like E21
E21 01 SES Test
SES Test signal unsuccessful SES short-circuit to the
earth Check the cabling of
the sensor or the jumper
Prior to opening
A
02
SES too slow
SES reacts too slowly Check
the cabling of the sensor
Check for polarity
reversal/test signal
E22 01 NOT Test
NOT input on 24 V
Check the jumpter NOT
Check the cablinf of NOT
Permanent
H
02
Malfunction
Restart the control unit
SW Update necessary
After Power Up
Table 10-4
Power
No
Description
Cause
Elimination
Checking Time
Reaction
E30 01 30 V Error
30 V too low
Mains failure, overload
motor Check 115 VAC
line. Replace hardware
Permanent
A
02
30 V too high
03
Error upon switching-on
After Power Up
E31 01 24 V General Error upon switching-on
Overload, short-circuit of
the 24 V inputs
(without electric lock,
Safety Sensors)
After Power Up
A
(Restart after
10 s)
02
Over-resp under-voltage
Permanent
E32 01 24 V Safety
Over-resp under-voltage
Overload, short-circuit
Safety Sensors
E33 01 24 V E-Lock
Error:
Over-resp under-voltage
Overload, short-circuit
electric lock
02
Premonition:
Over-resp under-voltage
W
E34 01 24 V CAN
Over-resp under-voltage
Overload, short-circuit
external power supply
CAN
Table 10-5
Option
No
Description
Cause
Elimination
Checking Time
Reaction
60 00 Relay PCB 0
Option PCB has been
removed, its address
changed or became
defective
X
Check if the option is provided.
X
If defective: Replace or remove
from the configuration.
Permanent
W
10 Relay PCB 1
W
20 Radio PCB
W
30 Fire-Protection
A