Connecting the DC Power Cord

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

oRemove all power from the device before removing any covers or elements of the system, and prior to installing or removing any accessories, hardware, or cables.

oRemove power before wiring this product's power terminals.

oAlways use a properly rated voltage sensing device to confirm power is off where and when indicated.

oReplace and secure all covers or elements of the system before applying power to this product.

oUse only the specified voltage when operating this product. This product is designed to use 12 to 24 Vdc power. Always check whether your device is DC powered before applying power.

oSince this product is not equipped with a power switch, be sure to connect a power switch to the power supply.

oBe sure to ground this product's FG terminal.

Failure to follow these instructions will result in death or serious injury.

NOTE:

oThe SG (signal ground) and FG (functional ground) terminals are connected internally in this product.

oWhen the FG terminal is connected, be sure the wire is grounded. Not grounding this product can result in excessive electromagnetic interference (EMI).

DC Power Cord Preparation

oMake sure the ground wire is either the same or heavier gauge than the power wires.

oDo not use aluminum wires in the power supply's power cord.

oTo prevent the possibility of a terminal short, use a pin terminal that has an insulating sleeve.

oIf the ends of the individual wires are not twisted correctly, the wires may create a short circuit.

oThe conductor type is solid or stranded wire.

oUse copper wire rated for 75 °C (167 °F) or higher.

Power Cord Diameter	0.75...2.5 mm² (18...13 AWG)^*1
Conductor type	Solid or stranded wire
Conductor length

*1 For UL compatibility, use AWG 14 or AWG 13.

DC Power Supply Connector Specifications: Spring Clamp Terminal Blocks

Models except for HMIDT35X come with the right-angle-type power connector, and the HMIDT35X comes with the straight-type power connector.

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1 Straight type: HMIZGPWS by Schneider Electric

2 Right-angle type: HMIZGPWS2 by Schneider Electric

NOTE: You cannot connect the right-angle type to the HMIDT35X.

Connection	Wire
+	12...24 Vdc
-	0 Vdc
FG	Grounded terminal connected to the panel chassis.

How to connect the DC Power Cord

Step	Action
1	Confirm the power cord is not connected to the power supply.
2	Check the rated voltage and remove the “DC24V” sticker on the DC power supply connector.
3	Connect each wire from the power cable to a pin terminal.
4	Push the Opening button with a small and flat screwdriver to open the desired pin hole.
5	Insert each power cord wire into its corresponding hole. Release the Opening button to clamp the wire in place. 1 Power cord 2 Opening button When using stranded wire, do not short with neighboring wires.
6	After inserting all three power cord wires, insert the DC power supply connector into the power connector on this product.
7	When using the DC power connector with fixable screws, use a slot-head screwdriver to affix the screws on both sides of the connector. The necessary torque is 0.5 N•m (4.4 lb-in).

NOTE:

oDo not solder the wire directly to the power crimp pin.

oIf the wire is not inserted into the FG terminal properly, touch may not respond normally.