C
L E A R
P
A T H
U
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M
A N U A L
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E V
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1 . 9 7
8 9
A
PPENDIX
A:
LED
B
LINK
C
ODES
u
Note: In cases where multiple exceptions use the same blink code, yo
must connect ClearPath to a PC running MSP to determine exception
type.
LED Activity
Exception
Type
Affect on
Motion
Servo
Behavior
How to Clear
Exception
Status or Exception
Message Reported in UI
No LED Activity
(See additional
notes below
table.)
N/A N/A
Servo
off N/A
No (or low) Power
Verify DC power is correctly wired
d voltage range
sure main DC
and within specifie
(24-75VDC). Make
power never droops below 24VDC
during motor operation.
Status: Disabled
Motor power is turned off.
Yellow – on solid
N/A
N/A
Servo off
N/A
Status:
Performing Commutation
Yellow - flicker
N/A
N/A
Servo on
N/A
Start-up
Status:
Enabled
Motor power is on. ClearPath will
respond to motion commands.
Green - flicker
N/A
N/A
Servo on
N/A
User Stop
ESC key or button was pressed by
the user.
Yellow - 2 blinks
Shutdown
Disallows
motion
Servo off
Toggle Enable
input
Motor Enable Conflict
The hardware inputs did not match
the active software override inputs
when the motor was enabled via the
hardware enable line.
Yellow - 2 blinks
Shutdown
Disallows
motion
Servo off
Toggle Enable
input
Max Bus Voltage Exceeded
Probable cause: high AC line
voltage, large regenerated voltage
upon deceleration.
Yellow - 3 blinks
Shutdown
Disallows
motion
Servo off
Toggle Enable
input
Command Speed Too High
Probable cause: commanded
speed/velocity is beyond motor spec.
Yellow - 4 blinks
Shutdown
Disallows
motion
Servo off
Toggle Enable
input
Tracking Error Limit Exceeded
Possible causes: excessive friction,
mechanical misalignment, vel/accel
too high, low DC bus voltage.
Yellow - 4 blinks
Shutdown
Disallows
Servo off
Toggle Enable
input
motion
RMS Torque Limit Exceeded
,
e
too high, undersized motor.
Yellow - 4 blinks
Shutdown
Disallows
motion
Servo off
Toggle Enable
input
Possible causes: excessive friction
mechanical misalignment, duty cycl
Excessive Bus Current
Probable cause: bad tuning, low bus
voltage.
Yellow - 4 blinks
Shutdown
Disallows
motion
Servo off
Toggle Enable
input
Excessive Motor Temp
Possible causes: ambient
temperature too high for motor load;
poor cooling; fan not running (if
used).
Yellow - 5 blinks
Shutdown
Disallows
motion
Servo off
Toggle Enable
input
Momentary Low Bus Voltage
Power supply drooped below 18V,
insufficient current capabilities,
and/impedance too high.
Yellow – 6 blinks
Shutdown
Disallows
motion
Servo off
Toggle Enable
input
Old Config File Version
Probable cause: Firmware updated
after config file was saved. Create or
load new config file.
Yellow - 7 blinks
Shutdown
Disallows
motion
Servo off
Toggle Enable
input
Motor Phase Overload
Phase current is beyond allowed
ADC limit. Probable cause: incorrect
tuning or wrong config file.
Yellow - 7 blinks
Shutdown
Disallows
motion
Servo off
Toggle Enable
input
Hard Stop Gave Way
A mechanical hard stop was
detected during homing but it gave
way before homing was completed.
Yellow - 7 blinks
Shutdown
Disallows
motion
Servo off
Toggle Enable
input
T
EKNIC
,
I
NC
.
F
AX
(585)784-7460
V
OICE
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