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GT20 Wire and Programming Manual
www.NabcoEntrances.com
P/N C-00140
Rev 5-7-18
Table 20
Drive Mechanism Table
No
u
Description
Cause
Elimination
Checking Time
Reaction
E1
01 Encoder
Channel A Lost
X
X
Check:
X
y
Encoder Connection
X
y
Motor Cable
X
y
If Jumper is inserted on X106
X
X
Direction of motor rotation does not
match swing side of door
X
X
Door is blocked
During Run
H
02
Channel B Lost
03
Channel A + B Lost
04
Short-Circuit A + B
Prior to Start-Up
H
05
Malfunctions
06
Motor Cable incorrectly
plugged in
07
No signal channel A
During Encoder Test H
08
No signal channel B
09
No signal channel A + B
10
Short-circuit A + B
Prior to start-up
H
11
Malfunctions
During Test
H
12
Malfunctions
13
Encoder not connected
Always
H
E2
02 Motor
Current
Current too High
X
X
Check:
X
y
Motor Cable
X
y
If Jumper is inserted on X106
Prior to start-up
H
Current too Low
Jumper missing
E3
01 Latch Check
(cushioning)
Test Failed Once
Switch the Drive Unit to MANUAL
Operating Mode. Then carefully check if
the door closes in a cushioned manner:
X
X
If Not: Replace Hardware
X
X
If Yes: Check/correct the friction of the
Door Panel and the pre-stressing of
the closing spring
Prior to closing cycle
(after startup)
W
02
Test Failed Twice
F
(Drive unit is
functioning
Buzzer Active)
Damping Defective
Opening beyond range of
Operator
E4
01 Reference
Switch
Range of Operator
detected in the Open
Position
X
X
Check:
X
y
The Connection
X
y
Switching Point of the Reference
Switch
X
X
Reference Switch must be activated
in Close position (Switching Contact
open)
Open Position
F
02
Not detected in the Closed
Position
Prior to the First
Setup Run
A
03
Not detected in the Closed
Position
04
Not detected in the Open
Position in "INVERS" mode
X
X
Before Start (Teach) door must be in
Open position
X
X
Reference Switch must be activated
in Open position (Switching Contact
open)
E5 00 Power
Limitation
Control Overload
X
X
Check/Correct
X
y
Friction of the Door Panel
X
y
Pre-Load of Closing Spring
X
X
Ensure maximum door weight is not
exceeded
Permanent
A
Maximum Power is
Restricted