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GRX WCI Control Interfaces grx-wci.qxp

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Job Name:
Job Number:
Model Numbers:
Page
SPECIFICATION SUBMITTAL
grx-wci-1 06.01.04
Control Interfaces
GRX-WCI
®
Page
GRX-WCI
Wallbox Closure Input Interface
Description
• The GRX-WCI mounts behind the user-supplied
switch to select or adjust scenes in up to eight
Control Units.
• Works with a PELV (Class 2) low-voltage, dry
contact switch that meets the power requirements
found in the Specifications section of this document.
• Works with GRAFIK Eye 3000 or 4000 Series
Control Units.
• The recommended wallbox depth is 61mm. The
wallbox depth requirements vary with the depth of
the switch in use.
• The GRX-WCI uses one address on the
Communication Link.
• The GRX-WCI is not designed to work with
line/mains voltage switches.
Program Button
Input Wiring Harness
Power LED Addressing and Function Switches
1
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Job Name:
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SPECIFICATION SUBMITTAL
grx-wci-2 06.01.04
Control Interfaces
GRX-WCI
®
Power
• Low-voltage PELV (Class 2)
Operating voltage: 12/24 VDC.
• Provides 1-way input interface between GRAFIK Eye
3000/4000 Lighting Control Systems and a switch provided by
others.
• If using a mechanical switch, it must be a low-voltage, dry
contact closure rated switch.
• If using a solid-state input switch, it must have an on-state
saturation voltage less than 1VDC at 1mA and an off-state
leakage current of less than 1 mA.
• Use with line/mains voltage switches could result in premature
failure of the switch being used.
• If there is any question as to whether a switch is compatible
with these specifications, contact the manufacturer of the
switch.
Key Design Features
• Meets IEC 801-2. Tested to withstand 15kV electrostatic
discharge without damage or memory loss.
System Communications and Capacity
• Low-voltage PELV (Class 2) wiring connects Wallstations to
Control Units and other components.
• Up to 8 Control Units and up to 16 total Wallstations and/or
Control Interfaces may be linked for a total of 24 control points.
Terminals
Accept up to two 1.0mm
2
(#18 AWG) typical.
Environment
0-40°C (32-104°F). Relative humidity less than 90% non-
condensing.
Specifications
2
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Page
SPECIFICATION SUBMITTAL
grx-wci-3 06.01.04
Control Interfaces
GRX-WCI
®
Dimensions and Mounting
Wallbox
GRX-WCI
Low-Voltage
Contact
Closure Switch
Provided by
Others
Communication
Link Wiring
4321
Side View
Back View
20mm (13/16”)
59mm
(2-5/16”)
59mm
(2-5/16”)
119mm
(4-11/16”)
Data
Data
Power
Common
Front View
3
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SPECIFICATION SUBMITTAL
grx-wci-4 06.01.04
Control Interfaces
GRX-WCI
®
Scenes 1 to 4
Scenes 5 to 8
Scenes 9 to 12
Scenes 13 to 16
5678910
FUNCTION Switch Settings
Inputs 1-4
Off
Off
Off
Off
Input 5
Raise
Raise
Raise
Raise
Input 6
Lower
Lower
Lower
Lower
Input 7
Selects Scene 1.
Selects Scene 9.
Selects Scene 13.
Selects Scene 16 (full ON). Locks all other system
controls from this Control Unit (scene lock).
Temporarily brightens selected zone(s).
Allows only temporary adjustments to zones -
adjustments will not affect preset scene settings.
Starts a sequence, loops continuously through
scenes 5 to 16 using fade times entered at Control
Units.
Synchronize toggle between Scene 1 and Off on
assigned control units.
Synchronize control units to Off.
Select Scene 1 when contacts are closed, and Off
when contacts are open.
Selects Off when contacts are open.
2-button Entrance
Wallstation Interface*
2-button Scene Selection*
2-button Panic Wallstation*
2-button Fine Tuning*
2-button Zone Lockout*
2-button Sequencing*
1-button Entrance Control
Interface* for Momentary
Switch Inputs
1-button Occupany
Sensor/Entrance Control
Interface* for Maintained
Inputs (causes event upon
closure and opening)
Turns lights off.
Selects scene 10.
Selects scene 14.
Restores previous scene.
Removes lockout control.
Temporarily dims selected zone(s).
Disables zone lockout.
Turns sequencing off.
No action.
No action.
No action.
No action.
Input 6
Input 7
4-Scene with Master
Raise/Lower
* Inputs 1 through 5 are inactive.
Functionality
5678910
FUNCTION Switch Settings
4
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SPECIFICATION SUBMITTAL
grx-wci-5 06.01.04
Control Interfaces
GRX-WCI
®
4321
(2) 1.0 mm
2
(#18 AWG)
twisted, shielded pair
from terminals 3 to 3,
and 4 to 4
1.0 mm
2
(#18 AWG)
(2) 2.5 mm
2
(#12 AWG)
Addressing
• Set Address Switches 1-4 to give the GRX-WCI the
unique system address from 1 to 16.
• Set Function Switches to specify function as shown
in Functionality chart.
Low-Voltage PELV (Class 2) Wiring
• Use low-voltage PELV (Class 2) wiring to daisy-
chain GRX-WCI to Control Units and other
components.
• Lutron recommends that all connections be made
in the wallbox.
• If a remote connection (T-tap) must be made, the
maximum wire length from the communication link
to the connected unit must be 2.5m (8 ft.).
When used with GRX-3000 Control Units
• Two 1.0mm
2
(#18 AWG) conductors for common
(terminal 1) and 12VDC (terminal 2). Ensure that
the terminal 2 connection is wired correctly. Refer
to GRX-3000 Specification Submittal for more
details.
• One shielded, twisted pair 1.0mm
2
(#18 AWG) for
data (terminals 3 and 4).
When used with GRX-4000 Control Units
• Two 2.5mm
2
(#12 AWG) conductors for common
(terminal 1) and 24VDC (terminal 2). Connect as
shown below.
• One shielded, twisted pair #1.0mm
2
(#18 AWG)
for data (terminals 3 and 4).
• Connect Drain as shown.
- Do not connect to Ground (Earth) or Wallstation.
- Connect the drain and cut off the outside shield.
10
11
12
13
14
15
16*
9
2
3
4
5
6
7
8
1
* Reserved for GRX-PRG, if present on link.
Drain Wires
Note: Use appropriate wire connecting
devices as specified by local codes.
Installation
Address
Address Switch
Settings
1 2 3 4
Address
Address Switch
Settings
1 2 3 4
5
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SPECIFICATION SUBMITTAL
grx-wci-6 06.01.04
Control Interfaces
GRX-WCI
®
Contact Closure Wiring
• Connect the desired input(s) and common wire(s) to the switch(es)
provided by others.
• Ensure proper function then cap or cut off unused input wires.
Input 1
Common
Switch
Input 7
Switch
All switch
closure inputs
must share the
same common.
6
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Completed 8 May 2020

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