Blue LED flashing during a move or blinking every two seconds.
The device has slipped or stalled.
Please see the
Slipping and Stalling
section below.
Blue LED showing a burst of 2 flashes every 1 second
A stationary device has been forced out of position.
Blue LED showing a burst of 5 flashes every 2 seconds.
The encoder has encountered a read error.
Please contact
Zaber Technical Support
.
Blue LED blinking twice per second. Device does not move.
Driver may be disabled due to over-temperature, out-of-range voltage or other driver fault; or due to user
request.
See
Fx Warning Flags
.
Once the issue has been resolved, send
driver enable
.
This will also occur briefly when a peripheral is plugged back into the axis after being unplugged.
Manual Control
Turning the knob either way results in no movement.
The knob may have been disabled.
Check that the
knob.enable
setting is correct.
Restore the default parameters through the
system restore
command.
The device won't cover the full range of travel.
The device hasn't been homed.
Turn the knob anti-clockwise until the device reaches the fully retracted position. The device will home and
the full range of travel available.
Unexpected Behaviour
The device doesn't respond to a move command.
The device may need to be homed before use.
Send the
home
command.
A peripheral won’t move and move commands are rejected.
The peripheral may have been unplugged and plugged back in to the wrong axis. Send
the
activate
command the peripheral to continue using it.
The device is moving on its own and running against the ends of travel.
The position encoder has de-synchronized.
Reset the device by power cycling it or sending the
system reset
command, then re-initialize it with
the
home
command.
The device is moving very slowly. It used to move faster.
The speed settings may have been changed inadvertently.
Send a
system restore
command.
The device makes louder than normal noise during travel and is frequently slipping.
This condition happens if the thrust needed is more than the thrust available from the device.
Check the following:
The force on the device is less than the maximum thrust.
The voltage matches the specified voltage. Read the voltage using the
get
system.voltage
command. Voltage less than the specified voltage for the device will reduce the
device’s maximum thrust.
Test the following:
Try a slower target velocity.
Try a lower acceleration and deceleration.
Clean the screw and lightly re-grease it with a grease that does not degrade plastics.
A stepper motor peripheral has repeatability errors smaller than 4 full steps.
If steps aren't being skipped, friction or loose parts may still cause some variation when returning to a
position.
Please contact
Zaber Technical Support
.
The device doesn't cover the full range of travel, or runs into the end.
A setting might have been inadvertently changed.
home
the device to see if this corrects the behaviour.
Send a
system restore
command.
Ensure that the peripheralID setting of each axis corresponds to the attached device. A list of
peripheral ids are available at the
Peripheral IDs page
.
The device's motor unexpectedly shuts off. An
Fx warning flag
is present.
The motor over-temperature protection switch has been tripped. This sensor will trip if the device's
maximum continuous thrust specification is exceeded for too long. To prevent this condition from occurring
again, reduce the average force that the motor outputs by reducing acceleration, reducing the load, or
lowering the duty cycle.