Output Connections; Operation - Extron electronics IPA T RLY4 Setup Manual

Output Connections

Outputs (see figure 2
B
For the normally open contacts, connect a device between the NO and C terminals of the 3-pole captive screw connectors.
For the normally closed contacts, connect a device between the NC and C terminals of the 3-pole captive screw connectors.
NOTE:
Figure 5 shows wiring diagrams for a typical application: an Extron IPA T RLY4 driving a screen controllers of
various types. These are examples only. Your equipment may have different wiring requirements (see the manual from
the applicable manufacturer for specific wiring instructions).
IPA T RLY4
RELAY 3
RELAY 1 RELAY 2
NO C NC NO C NC
NO C NC
UP DOWN STOP
Typical Stewart Low Voltage Controller
Figure 5. Wiring Diagrams for Connection to a Screen Controller (See th
NOTES:
• * For a typical Stewart screen controller, a momentary closure on relay 1, 2, or 3 causes the screen to move up,
down, or stop.
• † 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

Operation

When an input signal is applied to one of the input terminals of the IPA T RLY4, the signal toggles the state of that IPA T RLY4
output relay; the relay 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
Output On
(closed)
Off (open
on page 1) — For each relay:
IPA T RLY4
RELAY 4
RELAY 1 RELAY 2
NO C NC NO C NC
NO C NC
COMMON RED BLACK
*
Typical Da-Lite or Draper Low Voltage Controller
Relay state
NO NC
Closed Open
Open Closed
RELAY 3 RELAY 4
NO C NC NO C NC
WHITE (DA-LITE)
BLUE (DRAPER)
†
)
e NOTES below
3