©
National Instruments Corporation
9
MID-7604/7602 Power Drive User Guide
Note
In older versions of the MID-7604/7602, the red status LEDs do not illuminate when
the yellow status LEDs illuminate. This behavior only occurs in newer versions of the
MID-7604/7602.
Both the AC
POWER and ENABLE switches can inhibit the stepper
drivers. However, as long as the AC
POWER switch is on, only the stepper
driver output stages are disabled. The remaining circuitry remains active,
including the quadrature encoder circuit.
Caution
You
must
change the MID-7604/7602 main input fuse on the front panel if you
change the line voltage from the factory setting. Refer to the
section of this
guide for fuse specifications.
Back Panel Connector Wiring
Figure 2 shows the connectors located on the back panel of your
MID-7604/7602.
Figure 2.
MID-7604/7602 Back Panel Connectors
Note
Items followed by an asterisk (*) are available on the MID-7604 only.
Caution
Be sure to turn off the ENABLE switch and the main AC power to your
MID-7604/7602 and host computer
before
connecting the accessory to your motion
controller.
Warning
The stepper motor connectors on this drive are energized when the unit is
powered on. Disconnect the MID-7604/7602 unit from the power outlet
before
connecting
wires to or disconnecting wires from the stepper connectors. Strip back the insulation of
the stepper wires to the stepper connectors no more than 7 mm.
Failure to do so could
result in electric shock leading to serious bodily injury or death.
1
Motion Controller Connector
2
Analog Input Connector
3
Analog Output Connector
4
Trigger Connector
5
Breakpoint Connector
6
AC Power
Encoder
Connectors
7
Axis 1
8
Axis 2
9
Axis 3*
10 Axis 4*
Limit
Connectors
11 Axis 1
12 Axis 2
13 Axis 3*
14 Axis 4*
Motor
Connectors
15 Axis 1
16 Axis 2
17 Axis 3*
18 Axis 4*
1
2
3
4
5
7
8
11
12
9
10
13
14
15
16
17
18
6
