Q-Drive Installation Manual
Issue 1.5
Page 54
Copyright © 1996 Quin Systems Ltd.
8.7
Trouble Shooting
The following table shows the most frequent troubles and their causes.
No
Trouble
Possible cause
1
LED “OVER I”
switched on
short-circuit between 2 motor terminals
2
Display 2
limit of continuous current reached
- Resolver Shift Angle parameter incorrect
3
Display 3
motor overloaded
- badly wired or loose connection of wires for motor
thermal switch
4
Display 4
servo-amplifier overloaded
- cooling fan failure
5
Display 5
resolver conversion circuit failure
- Resolver Shift Angle parameter incorrect
6
Display 6
resolver failure - resolver wiring failure
7
Display 7
appears with OVER I LED
- brake fuse failure or missing
- appears in case of over-voltage or supply missing
8
Display C
motor connection failure
9
Display d
detection of a motor ground defect (option) with
auto-transformer
10
Motor doesn't turn. Display
s h o w s 0 w h e n s p e e d
command is applied
- max. current of servo-amplifier limited too low
- motor brake engaged
- speed reference short-circuited by REF Jumper
11
Motor rotation is not smooth
Motor pole pairs parameter incorrect
- Motor wiring on terminal U, V, W not in the correct
sequence
12
M o t o r t u r n s i n w r o n g
direction
Command signal is wired incorrectly, Reverse
connections to PP10.3 and P10.4 and change the
setting of jumper J3.
Table 10: Q-Drive Trouble Shooting
