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1. Used with small DC Motors
In the current configuration, the DC Interface Box is intended to be used
primarily with small DC motors. The motors could be driven directly by
the modules of the MM2000 Motion Controller, or by the DC Module of the
DC Interface Box. Due to the power supply constrains of the typical PC,
the applications with the MM2000, are limited to only two actuators mov-
ing at a time. With the DCIB DC Module(s), four actuators can be moving
at a time.
Motor OFF Feature
An important feature of the DC Interface Box is the support for the manual
position-adjusting knob. This knob, present on the 850F actuator, needs an
open motor circuitry in order to operate with the minimum resistance.
The function is implemented with one relay for each axis, controlled by
the MM2000 board through the user I/O lines, or ESP6000 board through
the Amplifier Enable Output lines.
For MM2000 Only:
Due to the limited number of I/O lines, three modes of relay control are
available to allow the user to select the configuration that best fits his
application. A bank of four jumpers selects which I/O line, if any, will be
used to activate the open-motor relay.
Each axis jumper could set one of the following modes:
I/O 7
I/O 6
I/O 5
I/O 4
• jumpers on the right (as shown in the chart above) : The same I/O line
controls all relays, number 7. (factory default setting)
• jumpers on the left: Each relay is controlled by a different I/O line; in
this case the relays for axis number 1, 2, 3 and 4 are controlled by the
I/O bits number 4, 5, 6 and 7, respectively.
• jumpers missing: The relays are always closed and the I/O lines are
available for general-purpose interface.
The three different modes of operation can be mixed on the four axes.
I/O 7
............Axis #4
............Axis #3
............Axis #2
............Axis #1
NOTE
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