NI PCI-7390, Руководство пользователя

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Chapter 4 Signal Connections
NI PCI-7390 User Manual 4-4 ni.com
Power Supply Connections
The PCI-7390 requires an ex24 V power supply for the optical
isolation circuitry. An onboard regulator generates a +5 V output supply for
both internal and external usage. Figure 4-2 shows a simplified schematic
of the power supply connections. The positive terminal for the +24 V
supply must be connected to +24 V IN and the reference must be connected
to Isolated Ground.
Axis <1..4> General-Purpose
Output <0..1> — Isolated Ground Output General-purpose outputs
Optional general-purpose
output functionality
Axis <1..4> Inhibit-Out
Servo ON,
Drive Enable
Isolated Ground Output Drive inhibit
Optional general-purpose
output functionality
Axis <1..4> Alarm Clear
Servo Alarm
Clear
Isolated Ground Output Clears an alarm output
from the drive
Is5 V OUT — Isolated Ground Output Is5 V power supply
output generated from the
+24 V IN power supply
Isolated Ground — — — Reference for all outputs,
trigger inputs, +24 V IN
and Is5 V OUT
General-Purpose
Output Supply — Isolated Ground Input Positive supply/reference for
general-purpose outputs.
Axis <1..4> VI_COM — — — Reference for the following
Axis <1..4> inputs: Forward
and Reverse Limits, Home,
Inhibit-In, Input Bit <1..2>
+24 V IN — Isolated Ground Input +24 V supply provided by
the user to power optical
isolation circuitry
Table 4-1. I/O Signal Connections (Continued)
Signal Name
Alternate
Signal Name Reference Direction Description