maxon motor
1-Q-EC Amplifier DEC 50/5
Operating Instructions
9 Operating Status Display
Red and green LEDs show the operating status.
Definition
9.1 No
LED
Reason:
•
No supply voltage
•
Fuse
blown
•
Wrong polarity of supply voltage
•
Hall sensors supply voltage V
CC
Hall is short-circuited
9.2 Green
LED
Flashing type (green LED)
Operating status
Amplifier active
/Disable function active
LED on
LED off
LED on
/Brake function active
9.3 Red LED flickers or flashes intermittently
The controller recognises invalid conditions in the Hall sensor inputs.
Reason:
•
Hall sensors not connected or incorrectly connected
•
Intermittent Hall sensor supply lines
•
Excessive interference to Hall sensor supply lines
(Solution: change supply line feeds, use shielded cable)
•
Faulty Hall sensors in motor
9.4 Red LED flashes regularly
The following error messages can be distinguished depending on flashing type:
Flashing type (red LED)
Error message
Thermal overload protection is active
•
Motor shaft is blocked
•
Load too great
•
I
max
setting too low
•
No winding connection
When switched on, the controller
recognises invalid conditions in the
Hall sensor inputs => check Hall
sensor wiring and Hall sensor signals
An invalid operating mode was set on
switches
S3
-
S6
14
maxon motor control
October 2008 Edition / Doc.No. 544910-06 / subject to change
