Extron electronic IPA T RLY4 Operation, Connections, I/O mode, I/O state, Relay state

Connections

NFigure 4 is a wiring diagram of a typical application: an Extron IPA T RLY4 driving a screen controller. Please be aware that these are examples only. Your equipment may have different wiring requirments. Refer to the manual from the applicable manufacturer for specific wiring instructions.

IPA T RLY4	IPA T RLY4
RELAY 1 RELAY 2 RELAY 3 RELAY 4	RELAY 1 RELAY 2 RELAY 3 RELAY 4

NO C NC NO C NC NO C NC NO C NC

UP DOWN STOP COMMON

Typical Stewart Low Voltage Controller

NOTE For a typical Stewart screen controller, a momentary closure on relay 1, 2, or 3 causes the screen to move up, down, or stop.

NO C NC	NO C NC	NO C NC	NO C NC
RED	BLACK		WHITE (DA-LITE)
			BLUE (DRAPER)

Typical Da-Lite or Draper Low Voltage Controller

NOTE For a typical Da-Lite or Draper screen controller, a momentary closure on relay 1 or 2 causes the screen to move up or down. A momentary closure on relay 3 causes the screen to stop in its current position. Use 1N4001 or equivalent diodes (not included) for reverse bias protection.

Recommended diode specifications: 100 mA maximum through diode

50 V maximum reverse bias

Figure 4 — Wiring diagram for connection to a screen controller

Operation

When an input signal is applied to one of the relays, the signal toggles the state of that IPA T RLY4’s output relay; the relay’s NO contacts close, routing the signal for the connected device, and its NC contacts open, interrupting the signal for the connected device. See the chart below for clarification.

I/O mode	I/O state	Relay state
		NO	NC
Output	On (closed)	Closed	Open
	Off (open)	Open	Closed

4IPA T RLY4 • Operation