Advanced Control Technologies CR334 (277VAC, 3 PHASE, A10 MULTI-FUNCTION COUPLER REPEATER) - Manual (Page 3)

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CR334 Installation Instructions
P/D 011904
ADVANCED CONTROL TECHNOLOGIES, INC.
Indianapolis, Indiana 46278
*Switch 5. ON: Smaller receive window.
OFF: Normal receive window.
*Receive window – “OFF” is the default and allows the coupler/repeater to analyze a
standard receive window. When “ON”, the coupler/repeater changes the method in which
it determines the presence of a valid signal. If excessive “Error” conditions occur, this
setting often helps the unit operate more effectively.
Switch 6. ON: Phase output transmission is disabled. SCC is unaffected.
OFF: CR334 will retransmit received signals on its 3 phases.
Switch 7. ON: CR334 will only retransmit received signals at 0° only.
OFF: CR334 will retransmit received signals at 0° and 30°.
**Switch 8. ON: Lower Sensitivity
OFF: Normal Sensitivity
**Sensitivity: The ACT coupler/repeater is designed to detect signal even when
obscured by background noise. However, under some harsh electrical environments,
the “OFF” setting may be inappropriate. When “ON”, the CR changes the method in
which it determines the presence of a valid signal. If excessive “Error” conditions
occur, this setting often helps the unit operate more effectively.
CHECKOUT
1. Check terminal connections to be sure they are tight and no bare conductors are exposed. Hinge
the CR334 into place on the 4-11/16" x 4-11/16" electrical box and fasten with both screws. Turn
the circuit breaker(s) on. The green (Power) LED should light. After a moment, the first red (Ready)
LED should light.
2. Using an appropriate test transmitter or any PCC transmitter on the electrical system,
transmit a PCC signal. The third red (Receive) LED will flash followed immediately by the
second red (Transmit) LED which will also flash.
3. If the appropriate LEDs do not flash in response to a remotely transmitted signal, confirm that
the signal reaching the CR334 has a strength of no less than 25mv peak to peak.
4. The last red (Error) LED will light for 5 seconds, then turn off, whenever the CR334 receives a
corrupted signal. If this LED lights often, it is an indication of electrical interference on the
distribution system. Appropriate filtering will usually be required.
EXPLANATION OF FEATURES
Priority SCC
Enabling priority SCC will allow SCC signals to take priority over any other signals that are being
received up to the last bit of the code. When a Priority SCC “interrupt” occurs, the READY LED will
flash off and on quickly.
Receive at 0° or 30°
The CR334 can receive at 0° or it can receive at 30°. When the CR334 is setup to receive at 30° it
will not be able to ignore repeated signal.
* Special Precaution when receiving at 30°: Do not have the Ignore SCC Repeated Signal Option
enabled. Having this feature enabled while receiving at 30° will cause the CR334 to not detect SCC
signals.
Repeat Repeated Signal/ Ignore Repeated Signal
When Repeat Repeated option is enabled, the CR334 will repeat all signals including signals from
another repeater.
When the Ignore Repeated Signal option is enabled, the CR334 will repeat all signals except signals
from another repeater.
*Special Precaution. Do not have the Ignore SCC Repeated Signal option enabled unless the Ignore
Repeated Signal is also enabled or the CR334 will not detect SCC signals. Note, however that the