Lutron Electronics CUS-500 Installation Instructions Download Page 3

®

Timer Test Mode

1. Remove the retainer cover.

2. Rotate the black timer adjustment knob to 
 

about midway (12 o’clock).

3. Return setting to minimum setting (full CCW).

    

Note:

 The timer will remain in the 8 second test

   mode for 1 hour, then automatically reset to 
   8 minutes.

4.  To manually take the timer out of the 8 second test mode, 

turn the timer adjustment approximately 1/16 in (1.6 mm) 
clockwise to make the setting slightly above minimum (just 
above the 8 minute setting).

Factory 
Settings

12 o’clock

Full CCW

Factory Settings

ON

ON

ON

ON

A

   1

   2

   3

   4

B

1

2

3

4

Black: Timer 
8 minute  
default

Blue: Photo cell 
(-R models only)
100% default

Red: Infrared 
sensitivity 
75% default

Green: Ultrasonic 
range 
50% default

Recommendation:

 Leave sensitivity settings as shipped.

Note:

 Not all models have every knob.

Control Settings (Blue Knob)

-R models only

0

1000

0

1000

0

1000

Minimum (low):

Lights will never come on, even though 
room is occupied.

Maximum (high):

Photo cell has no effect on operation 
(factory setting).

Normal:

200 lx to 600 lx is normal range.

Lighting 
Control 
system

Red (+20 to 24 V

-

)

Gray (control: occupancy & photo cell signal)

Black (common)

Yellow/White (NO)

Black/White (NC)

Blue/White (Relay Common)

Choose wire based on functionality:
• Yellow/White: NO (normally open)
   Open: Unoccupied
   Closed: Occupied
• Black/White: NC (normally closed)
   Open: Occupied
   Closed: Unoccupied
Cap off unused wire.

Wiring Diagrams

Relay Model Option: 

-R models only

Blue: Cap off

Sensor Adjustments

    Gray wire: logic with photo cell active: 

Adjusting the “Lights Not On” Level

-R models only

1. Ensure ambient light is at desired level.
2. Place sensor in Test Mode as indicated above.
3. Set photo cell: Turn the blue knob full clockwise (lights 

on no matter how bright the natural light is), then about 
30˚ counterclockwise.

4. Check for Lights-Out: Move from underneath the 

sensor, and remain still until the lights turn off. Move 
around normally to turn the light on.

5. Adjust to desired level: If lights turn on, adjust the blue 

knob another 30˚ counterclockwise and repeat step 3 
until the lights remain off.

 

Note:

 Set blue knob to 100% to disable photo cell 

functionality and leave secondary dry contact closure 
output functionality intact.

Room First Occupied

Light Level

Lights

Below set value

Turn on

Above set value

Remain off

During Occupancy

Light Level

Lights

Falls below set value

Turn on

Moves above set value

Remain on 

Relay Output

Summary of Contents for CUS-500

Page 1: ...lse triggering If installing a 180 occupant sensor place the sensor on the same wall as the doorway so that hallway traffic will not affect the sensor otherwise place in center of room Closely follow the diagrams for major and minor motion coverage Decrease total coverage area by 15 for soft rooms e g heavy draperies or heavy carpeting Indicated range is when unit is mounted on an 8 ft to 12 ft 2 ...

Page 2: ...gths when powered by power pack Installation and Mounting 4 2 in 106 6 mm 0 52 in 13 3 mm 2 5 in 63 mm ON OFF Off Default On Automatic Normal Manually On Off Override Auto Threshold Adjustment High Sensitivity Low turn on threshold Lights indicate motion Disable LED Indicator Retain Settings Normal Erase all learned settings Restart Learning Toggle On ON OFF Off Default On Disable Compensation Nor...

Page 3: ...ncy photo cell signal Black common Yellow White NO Black White NC Blue White Relay Common Choose wire based on functionality Yellow White NO normally open Open Unoccupied Closed Occupied Black White NC normally closed Open Occupied Closed Unoccupied Cap off unused wire Wiring Diagrams Relay Model Option R models only Blue Cap off Sensor Adjustments Gray wire logic with photo cell active Adjusting ...

Page 4: ...r 1 2 3 Red 20 24 V Blue signal Black common Troubleshooting LIMITED WARRANTY Lutron will at its option repair or replace any unit that is defective in materials or manufacture within one year after purchase For warranty service return unit to place of purchase or mail to Lutron at 7200 Suter Rd Coopersburg PA 18036 1299 postage pre paid This warranty is in lieu of all other express warranties and...

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