West Control Solutions ProVU 4 - Manual (Page 37)

ProVU4 Controller, Profiler & Recorder/Controller - Product Manual
Page 36 Wiring Instructions 59407, Issue 1 – March 2008
Option Slot A Connections - RS485 Serial Communications Module
If option slot A is fitted with the RS485 serial communication module, connections are as
illustrated. Carefully observe the polarity of the A (Rx/Tx +ve) and B (Rx/Tx -ve) connections.
Figure 34. Option Slot A – RS485 Serial Communications Module
CAUTION:
External computing devices connected to the communications port should comply
with the standard, UL 60950.
Option Slot B Connections
Option Slot B Connections – Digital Input 2 (Full Auxiliary Module)
If option slot B is fitted with the Full Auxiliary input module (see below), a secondary digital
input is also provided. This may be connected to the voltage free contacts of a switch or
relay, or to a TTL compatible voltage.
Figure 35. Option Slot B – Digital Input 2 Connections
Option Slot B Connections –
1
/
4
DIN &
1
/
8
DIN Full Auxiliary Input Module
If option slot B is fitted with full auxiliary input feature, input connections are as shown.
Figure 36. Option Slot B – Full Auxiliary Input Connections
9
8 _
+
7
6
5
(or Pot Low)
_
+
(or Pot Wiper)
(or Pot High)
RS485
A
B
16
17
18
COM