20.
Wiring the power supply l864_23
2.2.7
Wiring the Power Supplies and StepMetrix ISO
ID Controller
2. Connect the power supply to 220-240VAC, following all
applicable codes (see Figure 20).
—ATTENTION —————————————
⎯⎯⎯⎯⎯⎯
3. Wiring from the power supply to the controller box must
be run in conduit using 14 GA (2.5mm
2
) wire for the AC
Ground, 24 V and DC Common.
Do not apply DC power to controllers served by the power
supply until all connections have been made between the
power supply and the controller(s). If po wer is applied to a
controller before all connections have been made, the
power supply may become overloaded, causing a circuit
breaker to trip or oth er power supply damage to result. It
may also cause damage to other products served by the
power supply.
4. Connect the AC Ground, DC Common, and 24V to the
terminal block in the controller.
2.2.7.1
Load Cell to StepMetrix ISO ID Controller Connections
•
The load cells for the StepMetrix se nsor module
are numbered 1-8. T hey are numbered with
respect to the location of the ¾ ” (19 mm) c onduit,
as shown in Figure 21.
— NOTE ———————————————————
⎯⎯⎯
The following colors are recommended:
AC ground
Green or green/yellow if required
by code
•
Each load cell is connected to a connector on the
load cell signal conditioning board.
DC common
Black/white
•
The load cell signal conditioning board, located in
the StepMetrix controller, has four 10-pin
connectors (J101 to J108), as shown in Figures 22
and 25.
+24 Volts DC
Red/white
1. Mount the power supply in the enclosure that’s
provided. Mount it in a dr y location no mo re than 5 0
feet (15 m) from the StepMetrix controller.
•
Connect individual load cell cables to the pins, as
shown in Figure 22.
StepMetrix™ Installation Instructions
9E-864C
19
