NI UMI-7774/72 User Guide and Specifications
16
ni.com
Power Status Indicators
When you finish making the required power connections to the V, C, V
iso
, and C
iso
terminals, power on
the 24 VDC power supply. The
V
LED illuminates. If the 24 VDC power supply has also been connected
to the V
iso
and C
iso
terminals, the
V
iso
LED illuminates. If you are using a separate power supply to
provide isolation, power on the separate 5 to 30 V power supply and the
V
iso
LED indicator illuminates.
Refer to Figure 1 for an illustration of the V and V
iso
LEDs.
Control Connector for Each Axis
Each axis connected to the UMI-7774/72 has a 15-pin D-SUB control connector to which you wire drive
command and drive enable signals. Figure 14 shows the pin locations of the control connector for each
axis. Table 2 shows the corresponding signals for each pin.
Figure 14.
UMI-7774/72 Per Axis Control and Feedback Connectors, LED Status Indicators,
and Polarity Switches (Axis 1 Shown as Example)
Table 2.
Per Axis Control Connector Pin Assignment
Pin
Signal
Optically Isolated
1
Analog Output
No
2
NC
No
3
+5 V
†
(Output)
No
4
Step (CW)
No
18
19
20
21
22
23
24
25
17
16
15
14
1
6
7
8
9
10
11
12
13
5
4
3
2
AXIS 1
DISABLED
FAULT
FWD
HOME
REV
ACTIVE
LOW
ACTIVE
HIGH
CONTROL
FEEDBACK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
LIMIT LED
FAULT
ENABLE
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com