Baldor MN1903 installation manual Communication, Motor control, Symptom Check

6.2.2 Communication

If the problem is not listed below please contact Baldor Technical Support. An oscilloscope will be useful for many of the electrical tests described below.

Symptom	Check
Cannot detect NextMove	Check that the NextMove PCI driver has been installed.
PCI
Cannot communicate with	Verify that WorkBench v5 is loaded and that NextMove PCI
the controller.	is the currently selected controller. The MintMT operating
	system (firmware) must be downloaded to the controller
	each time it is powered.
	Check the card is firmly seated in its socket in the computer
	and this socket is of the correct type.
	Check that the green S1 LED on the card backplate is
	flashing (approximately twice per second).

6.2.3 Motor control

Symptom	Check
Controller appears to be	Check that the connections between motor and drive are
working but will not cause	correct. Use WorkBench v5 to perform the basic system
motor to turn.	tests (see section 5.4 or 5.8).
	Ensure that while the controller is not in error the drive is
	enabled and working. When the controller is first powered up
	the drive should be disabled if there is no program running
	(there is often an LED on the front of the drive to indicate
	status).
	Check that the servo loop gains are setup correctly - check
	the Fine-tuning window. See sections 5.4.2 to 5.6.
Motor runs uncontrollably	Check that the encoders are connected, they have power
when controller is switched	through Encoder V+ (if required, see section 4.5.3) and are
on.	functioning correctly. Use a dual trace oscilloscope to
	display both channels of the encoder and/or the complement
	signals simultaneously.
	Check that the drive is connected correctly to the breakout
	module and that with zero demand there is 0V at the drive
	demand input. See section 5.4.1.
	Verify that the breakout module and drive are correctly
	grounded to a common earth point.

MN1903 Troubleshooting 6-3