Lutron Electronics GRX-LC8 Handbuch

GRX-LC8 CONTROLLER

Installation and Setup Instructions Please Read

DESCRIPTION

The GRX-LC8 controller works with a GRX-CES series daylight sensor to allow for changes to be made to a Lutron

lighting system through a contact closure. It is a single channel lighting controller that features an adjustable ON

setpoint as well as an adjustable OFF setpoint. The controller features a signal deadband and time delay to ensure

lighting stability. The controller is powered by a PP series power pack.

INSTALLATION

Mount the controller using the adhesive strips provided. Choose a location where the PP series power pack can be

provided with power.

WIRING

6 7 8

1 2 3 4 5

SENSOR DELAY

OFF

On LED

Off LED

On Setting Knob

Off Setting Knob

Sensor (typical)

Power pack

PP-120H,

PP-277H, or

PP-UNVH*

LC8 Controller

Yellow (0-10 V signal) Black

(common)

Red (24 V )

Black

Blue (cap off)

Black (120 V )

White (neutral)

Red (cap off)

N.O. contact

Common

N.C. contact

To Lutron lighting control system

PELV (Class 2: USA) only

No line voltage

Notes

• When interfacing to a Lutron system, the

N.C. contact will turn lights on (contact

closure close) when daylight levels are

low, and turn lights off (contact closure

open) when daylight levels are high.

• When the Off or On LED is lit, the light

level is above the setting of its respective

knob.

CALIBRATION

Each GRX-CES sensor is calibrated during manufacturing to the light levels in its intended environment (indoor,

outdoor, etc.). Below is a chart of the settings for each model. The first column corresponds to the settings on the

adjustment knobs in the GRX-LC8 controller.

Adjustment

Knob Setting

Corresponding Foot-Candle Thresholds

GRX-CESI GRX-CESA GRX-CESS GRX-CESO

Below 1 0 2 10 0

1 10 100 200 25

2 20 200 400 50

3 30 300 600 75

4 40 400 800 100

5 50 500 1000 125

6 60 600 1200 150

7 70 700 1400 175

8 80 800 1600 200

9 90 900 1800 225

10 100 1000 2000 250

*Check with Lutron for availability

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 the implied warranty of merchantability is limited to

one year from purchase. This warranty does not cover the cost of installation, removal or reinstallation, or dam-

age resulting from misuse, abuse, or improper or incorrect repair, or damage from improper wiring or installation.

This warranty does not cover incidental or consequential damages. Lutron’s liability on any claim for damages

arising out of or in connection with the manufacture, sale, installation, delivery, or use of the unit shall never

exceed the purchase price of the unit.

This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Some

states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.

Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation

or exclusion may not apply to you.

World Headquarters

Lutron Electronics Co., Inc.

7200 Suter Road

Coopersburg, PA 18036

TEL +1-610-282-3800

FAX +1-610-282-1243

Internet: www.lutron.com

E-mail: [email protected]

Lutron Electronics Co., Inc.

Made and printed in U.S.A.

P/N 031-290 Rev. A 08.04.09

CALIBRATION (CONTINUED)

Using the chart on the previous page, set the On adjustment knob: This is the low light level that will trigger your

lights to go on. Set the Off adjustment knob: This is the high light level that will trigger your lights to turn off. For

proper operation, set the On knob at least 10% (1 tick mark on the knob) lower than the Off knob to create the

dead band.

TROUBLESHOOTING

If your system is not functioning, check for the following problems:

• Check the controller power: On the GRX-LC8 controller, you should be able to measure 24 V between terminals

4 and 5.

• Check the sensor power: Connect a voltmeter between its yellow and black wires. When the sensor is covered, it

should produce 0 V , and when it is in bright light, it should produce 10 V . If this is not the case, replace the

sensor.

• Check the controller function: The input delay switch should be off (up). With no sensor connected, all three LEDs

should be lit; when you short terminals 1 and 2 together, the LEDs should turn off. If this is not the case, replace

the controller.

• Check the controller settings: On the GRX-LC8 controller, the adjustment knob settings may be faulty. Follow the

above calibration instructions to reset.

5678910

SIMULATOR

JACK

INPUT

TIME

DELAY

RELAY

STATUS

OFF

FOR FURTHER

CALIBRATION

INFORMATION,

SEE IMM

(INSTALLATION

MAINTENANCE

MANUAL).

OCC

SENSOR

FOOTCANDLE

SETTINGS

1 10

10 100

25 250

100 1000

200 2000

OFF setting

ON setting

Daylighting Level (foot-candles)

Dead

band

Time of day

Lights ON Lights ON

Lights OFF

GRX-LC8

Calibration

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