WRxxxE20-‐EN2 Application Manual
2
Building Automation Applications
Bi-‐directional Control and Status
WRxxxE20-‐EN2 installed at controller to WRxxxE20-‐EN2 installed at load
•
Transmits ON command when dry contact input is closed and OFF command when dry
contact input is opened.
•
Retransmits dry contact input state every 70-‐140 seconds.
•
Relay output state is saved at power loss. Relay output is restored when power is
recovered. (See *note at end of document)
•
In this mode, one WR can only be paired with one other WR and no other devices.
•
Dry contact input closure on WR1 will activate relay output of WR2. Dry contact input
opening on WR1 will deactivate relay output of WR2. WR2 controls WR1 in same manner.
•
Optional modes:
Repeater (see page 11)
Bi-‐directional Learn Procedure
1.
Apply power to both WR’s.
2.
Press and hold CLR button on WR1 for 3 seconds until LED begins to flash.
3.
LED will blink slowly.
4.
Press and hold LRN button on WR2 for 3 seconds to transmit teach telegram.
5.
LED on WR1 will stay ON for 4 seconds indicating telegram reception.
6.
WR2 will automatically listen for corresponding teach telegram which is automatically
sent from WR1.
7.
LED on WR2 will turn ON for 4 seconds to indicate reception of teach telegram.
Содержание WR E20-EN2 Series
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