IMPULSE®•G+/VG+ Series 4 24 V Power Supply Installation Manual - November 2011
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Option Wiring
1.
Select an external power supply.
When the option is first switched on, two times the normal current will flow through the option for
approximately 0.5 seconds. The option requires at least 3 A to function properly.
2.
Wire the Terminal Block TB1.
Wire the external power supply to terminal block TB1 on the option.
Use a flat-blade screwdriver to loosen the screws on the 24 V power supply plug, connect wiring to
the 24 V, 0, and FE terminals as shown in Figure 30, then tighten the terminal screws to hold wiring
in place.
Refer to Wire Gauges and Tightening Torques on page 29 to confirm that the proper tightening
torque is applied to each terminal. Take particular precaution to ensure that each wire is properly
connected.
Figure 30: Wire the 24 V Power Supply Plug
WA R N I N G
Electric Shock Hazard
Use a battery or a double-reinforced UL Class 2 power supply to provide power to the option.
Using a different type of power supply may result in death or serious injury by electrical shock
or fire.
N O T I C E
Be sure to properly connect an external 24 VDC power source to the power supply plug. Refer
to Option Specifications on page 34 for details. Improper wiring practices could damage the
option due to incorrect terminal connections.
