40 of 43
GT20 Wire and Programming Manual www.NabcoEntrances.com
P/N C-00140 Rev 5-7-18
Table 23
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 Aer Power Up
E31 01 24 V General Error upon switching-on Overload, short-circuit of the 24 V
inputs
(without electric lock, Safety
Sensors)
Aer Power Up A
(Restart aer
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 Premonion:
Over-resp under-voltage
W
E34 01 24 V CAN Over-resp under-voltage Overload, short-circuit external
power supply CAN
Table 24
No
Description Cause Elimination Checking Time Reaction
60
00 Relay PCB 0
Opon PCB has been removed,
its address changed or became
defecve
X Check if the opon is provided.
X If defecve: Replace or remove
from the conguraon.
Permanent W
10 Relay PCB 1
W
20 Radio PCB W
30 Fire-Protecon A
Table 25
No
Description Cause Elimination Checking Time Reaction
E50 01-99 System Error Unexpected hardware or
soware event
Switch the drive unit O/On
Carry out a Factory Reset,
carry out a Soware Update,
inform the manufacturer
Permanent W or H or F
E51
E52
Table 26
No
Description Cause Elimination Checking Time Reaction
70 xx CAN bus seng CAN address xx exisng
twice
Correctly dene the role of the
Closing Sequence or the
Interlock Funcon
Permanent W
E71 01 CAN connecon No CAN connecon X Plug in, check or replace the
CAN cable
X Check if all the CAN parcipants
are switched on
Permanent W