West Control Solutions MRC 5000 Controller Manual - Manual (Page 12)

12
2.4.1 ELECTRICAL CONDUIT OPENINGS
The instrument case has 3 conduit openings, all on the right hand side of the case. To minimize the effect of electrical noise,
the following wire groups should be routed through the conduit openings as shown below.
Top Conduit Opening - Power Input - TB1
Middle Conduit Opening - Input Signal Wiring & Communications - TB2, TB3, and TB4
Bottom Conduit Opening - Optional Control/Alarm Outputs - Option Board TB5-TB8
Note: Unused conduit openings should be sealed.
2.4.2.1 AC POWER WIRING - STANDARD VOLTAGE
Connect the AC hot line to terminal 1 of TB1 and the neutral to terminal 2 of TB1.
Connect the AC ground to terminal 3 of TB1. See Figure 2-5A
2
5 A .
FIGURE 2-5A
2.4.2.2 POWER WIRING - LOW VOLTAGE
Connect the AC hot line to terminal 1 of TB1 and the neutral to terminal 2 of TB1.
Connect the AC ground to terminal 3 of TB1. Connrct the DC positive (+) to terminal 1 of TB1 and the negative (-) to terminal
2 of TB2. Connect the ground to terminal 3 of TB1. See Figure 2-5B.
5
A
FIGURE 2-5B
2.4.3 INPUT SIGNAL WIRING
Pen 1 inputs are connected to TB2 and Pen 2 inputs are connected to TB3. The input wiring for each pen is identical. See
Figure 2-6 for details on wiring various types of inputs to the recorder.
FIGURE 2-6
Install jumper
1
2
3
4
TB2/TB3
RTD
3 Wire RTD
1
2
3
-
+
4
TB2/TB3
mA
Input
Milliamp
Millivolt, Volt
1
2
3
4
TB2/TB3
+
-
mV
V
TC
1
2
3
4
TB2/TB3
RTD
2 Wire RTD
1 ~
2
~
3
TB1 - Power Wiring
Ground
AC - Neutral
AC - Hot
1
~
2
~
3
TB1 - Power Wiring
Ground
AC - Power-Neutral-DC(-)
AC - Power-Hot-DC(+)