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Over Current Protection:
The BZ-150 contains built-in short circuit and thermal protection circuitry that
shuts down the +24VDC output (low voltage red wire) to prevent permanent
damage to the power pack. Removing the excess load from the output restores
the BZ-150 to proper operation. Connect the excess load to another power pack.
LED Indicator
The LED on the reverse side of the BZ-150 indicates the following conditions:
• LED OFF: no power to the BZ-150, or the +24VDC output is shorted.
• LED blinking continuously: current output limit is exceeded (too many
sensors are connected to the power pack); +24VDC output shut down.
• LED ON, blinks once every 4 or 5 seconds: the relay is closed (load ON).
• LED ON continuously: the relay is open (load OFF).
TROUBLESHOOTING
The lights came ON automatically after I deliberately turned them
OFF for a presentation.
• The BZ-150 is set for the Auto ON Mode and the occupancy sensor time delay
expired. The BZ-150 reverted to Auto ON and then motion was detected.
-- Consider increasing occupancy sensor sensitivity and/or time delay.
-- Generate more motion during presentations.
The load does not turn ON with occupancy detection.
• Mode Switch is set to Manual ON.
• Hold OFF input is active.
The load does not turn OFF after sensor time delay expires.
• Hold ON input is active.
The load does not respond when I press the momentary switch.
• Check wiring.
The load does not come on automatically although the Mode Switch is
set to Auto ON.
• Cycle power to the unit to reset operating mode to Auto ON. Mode Switch
location was changed while the power pack was was powered (line voltage).
The load comes on automatically with occupancy although the Mode
Switch is set to Manual ON.
• Cycle power to the unit to reset operating mode to Manual ON. Mode Switch
location was changed while the power pack was was powered (line voltage).
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