C
L E A R
P
A T H
M C / S D
U
S E R
M
A N U A L
R
E V
.
3 . 0 9
1 5 6
T
EKNIC
,
I
NC
. T
EL
.
(585)
784-7454
A
PPENDIX
A:
LED
B
LINK
C
ODES
Note: In cases where multiple exceptions use the same blink code, connect ClearPath to a PC running
MSP to read exception type.
LED Activity
Exception
Type
Affect on
Motion
Servo
Status
How to
Clear
Exception
Status or Exception
Message Reported in UI
No (or low) Power
No LED Activity
N/A N/A
Servo
off
N/A
Verify power is correctly wired and
within specified voltage range.
Status: Disabled
Yellow – on solid
N/A
N/A
Servo off
N/A
Motor power is turned off.
Yellow - flicker
N/A
N/A
Servo on
N/A
Status:
Performing Commutation
Start-up
Status:
Enabled
Green - flicker
N/A
N/A
Servo on
N/A
Motor power is on. ClearPath will
respond to motion commands.
User Stop
Yellow - 2 blinks
Shutdown
Disallows motion
Servo off
Toggle Enable
input
ESC key or button was pressed by
the user.
Motor Enable Conflict
Yellow - 2 blinks
Shutdown
Disallows motion
Servo off
Toggle Enable
input
The hardware inputs did not match
the active software override inputs
when the motor was enabled via the
hardware enable line.
Max Bus Voltage Exceeded
Yellow - 3 blinks
Shutdown
Disallows motion
Servo off
Toggle Enable
input
Probable cause: high AC line
voltage, large regenerated voltage
upon deceleration.
Power Event Detected
Yellow - 3 blinks
Shutdown
Disallows motion
Servo off
Toggle Enable
input
Probable cause: Dropped AC phase;
Bus volts under operating voltage.
Command Speed Too High
Yellow - 4 blinks
Shutdown
Disallows motion
Servo off
Toggle Enable
input
Probable cause: commanded
speed/velocity is beyond motor spec.
Tracking Error Limit Exceeded
Yellow - 4 blinks
Shutdown
Disallows motion
Servo off
Toggle Enable
input
Possible causes: excessive friction,
mechanical misalignment, vel/accel
too high, low DC bus voltage.
RMS Torque Limit Exceeded
Yellow - 4 blinks
Shutdown
Disallows motion
Servo off
Toggle Enable
input
Possible causes: excessive friction,
mechanical misalignment, duty cycle
too high, undersized motor.
Excessive Bus Current
Yellow - 4 blinks
Shutdown
Disallows motion
Servo off
Toggle Enable
input
Probable cause: bad tuning, low bus
voltage.
Excessive Motor Temp
Yellow - 5 blinks
Shutdown
Disallows motion
Servo off
Toggle Enable
input
Possible causes: ambient
temperature too high for motor load;
poor cooling; fan not running (if
used).