Mm2000 Pc Card Motion Controller - Newport 850G Series User Manual

2.1.2 MM2000 PC Card Motion Controller

The MM2000 controller drives up to four 850G actuators via Newport's
Universal Interface box (UIB) P/N 21463-01 and using firmware version 1.5
or later. The controller firmware version may be displayed by using the VE
command. (Note that since the actuators are using the computer's internal
power supply, there is a limitation of 2 axes that may move
simultaneously. Future versions of the UIB will incorporate an external
power supply for applications requiring 3 or more axes of simultaneous
movement.)
The UIB provides relays to cut motor power for manual knob use and
firmware version 1.5 or later provides commands to properly enable
manual positioning and keep track of encoder counts during a manual
move. The UIB may be purchased as an option when ordering an MM2000
controller and the proper version of the firmware is assured. To upgrade
an existing MM2000 controller with firmware version 1.4 or earlier, the UIB
must be purchased separately. The existing firmware may be used with
the following work around for manual actuation. When sending the
MOTOR OFF (MO) command, the I/O bits on the UIB which control the
power relays must be logged manually using the DEFINE BITS (BO), CLEAR
BITS (CB), and SET BITS (SB) commands. Refer to the MM2000 user
manual and the data sheet included with the UIB for more details.
CAUTION
Failure to manually toggle the I/O bits on the UIB for controllers with
firmware version 1.4 or earlier will leave power applied to the motor
after the MOTOR OFF command has been issued. Do not try to manually
adjust actuator position with power applied to the motor or damage will
result to the gearhead. Manual positioning should not require more
torque to turn the knob with the actuator cable attached than with it
unplugged. If you're unsure about the effort required, unplug the
actuator to compare the feel of the knob before proceeding.
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