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softswitch128GL-1 07.15.05
Power Equipment
Softswitch128TM
Switching Systems
Softswitch128 Switching System
System Overview
Softswitch128 is a switching system that is ideal for
small to medium sized switching projects. A system
consists of panels, control stations, occupancy
sensors and photocells. Softswitch128 panels contain
Lutron’s one million cycle Softswitch
TM relay and the
Softswitch128 Controller.
Softswitch128 is easy to install and simple to
program. Softswitch128 also includes an
astronomical time clock for system automation.
System Features
• Controller LCD screens may be displayed in
Simplified Chinese, English, or other additional
languages.
• Digital control for up to 512 circuits.
• Add up to 32 digital control stations (wallstations and
interfaces) for multiple points of control.
• Up to sixteen (16) Softswitch128 panels may be
used.
• Integrated astronomical time clock.
• Add the Softswitch128 Expansion Module
to the system for increased control station capacity.
Three links of up to 32 control stations each (96
control stations total) may be added with the
Expansion Module present.
• Lutron Softswitch technology for every switched
output (resistive, inductive and capacitve) to full 16A.
• Softswitch relays are rated for all light sources as well
as motors.
• RS232 interface available (OMX-RS232).
• Contact closure input and output devices available
(OMX-AV and OMX-CCO-8).
• Keyswitch wallstations available (NTOMX-KS).
• Normal or emergency panel capability.
• Softswitch128 panel is prewired and pre-tested.
• Panels are rated for 220-240V applications.
• Panels are feed-through type.
• Panels are field expandable.
Softswitch128 Panel
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softswitch128GL-2 07.15.05
Power Equipment
Softswitch128TM
Switching Systems
Overview
The Softswitch128 Controller is used to configure the
entire Softswitch128 system. The controller features
an LCD user interface to facilitate programming all
switching system and astronomical time clock (ATC)
parameters.
The LCD screens may be displayed in Simplified
Chinese, English, or other additional languages.
Features
• Program wallstations to recall light patterns, to toggle
any switch leg(s), to activate delay-to-off and to
activate contact closures on a button by button
basis.
• Integrated astronomical time clock (ATC) automates
switching and contact closure outputs with up to 500
user-defined events within 7 daily schedules and 40
holiday schedules. Each day may have 25 events.
• ATC events automatically select patterns, start
afterhours mode, or end afterhours mode.
• Events may be copied and pasted for fast
programming.
• ATC events may be triggered by time of day or by an
offset from sunrise or sunset.
• System location is programmable by internal city
database or by specifying latitude and longitude.
• ATC automatically adjusts for leap year and daylight
savings time (where applicable).
• Programmable afterhours mode with user-selectable
“blink warn” and user programmable refresh time.
• Two integrated user-configurable contact closure
inputs.
• Override capability is available at the panel for
controls, timeclock, and switch legs.
• Controller is located in the Softswitch128 panel for
easy access.
Softswitch128 Controller
Softswitch128 Controller
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softswitch128GL-3 07.15.05
Power Equipment
Softswitch128TM
Switching Systems
Power
• Input power: 220-240V,
50/60 Hz, phase-to-neutral.
• Lightning strike protection: Meets
ANSI/IEEE standard 62.41-1980.
Can withstand voltage surges up
to 6,000 V and current surges up
to 3,000 A.
• 10-year power failure memory:
restores lighting to levels prior to
power interruption.
Load Types
• Incandescent (Tungsten) and
Halogen
• Magnetic Low Voltage
Transformer
• Electronic Low Voltage
Transformer
• Neon or Cold Cathode
• Magnetic and Electronic
Fluorescent Lamp Ballasts
HID
Motor Loads
• 1/2 HP at 220-240V
Switching Modules
(220-240V)
• Softswitch relay is rated for 16A
continuous use.
• Patented Softswitch
TM circuit
eliminates arcing at mechanical
contacts when loads are
switched. Extends relay life to an
average of 1,000,000 cycles
(on/off) for resistive, capacitive or
inductive sources.
Wiring
• Internal: Wired and tested by
Lutron.
• System communications: low
voltage PELV wiring connects
Softswitch128 panels to control
stations.
• Line (mains) voltage: feed and
load wiring only, with a feed for
the Softswitch128 controller.
Physical Design
• Enclosure: IP-20 protection; #16
U.S. Gauge Steel. Indoors only.
Weight:
13 kg (29 lbs) for Mini panels.
37 kg (80 lbs) for Standard-size
panels.
Mounting
• Surface mount.
Environment
• 0-40° C (32-104° F). Relative
humidity less than 90% non-
condensing.
Specifications
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softswitch128GL-4 07.15.05
Power Equipment
Softswitch128TM
Switching Systems
Softswitch128 Controller
• Configures entire Softswitch128
system.
• 2 low voltage (15-24VDC)
contact closure inputs,
momentary or maintained, pull
up or pull down.
• Emergency Sensing.
• Astronomical Time Clock.
• Digital Control Link.
• Mounted in Softswitch128 panel.
Astronomical Time Clock
• Capable of up to 500 events.
• 7 daily schedules and 40 holiday
schedules are available.
• 25 events per day.
• Holiday events are programmable
one year in advance.
• Holiday schedules are
programmable to run for up to
90 days.
• ATC location programmable by
built-in city database or by
entering latitude and longitude,
plus a sunrise or sunset offset to
adjust for local geography.
OMX-RS232
• Interfaces the Softswitch128
system to a PC, touchscreen, or
building management system
(BMS).
• Use RS232 strings to set light
levels and enable/disable time
clock events.
OMX-AV
• 5 low-voltage contact closure
inputs and 5 outputs.
• Inputs may select patterns,
toggle lights, or activate delay-to-
off.
• Interfaces with occupancy
sensors or photosensors (with
relay) to activate patterns or turn
off lights in an unoccupied
space.
• Contact closure outputs are
activated by button presses,
contact closure inputs, time
clock events, or emergency
status.
• See OMX-AV specification for
mounting, wiring, contact closure
output ratings, and voltage limits.
Note: only the above features are
supported by Softswitch128.
OMX-CCO-8
• Integrates third party motorized
window treatments or A/V
equipment.
• Outputs are activated by button
presses, contact closure inputs,
time clock events, or emergency
status.
• See OMX-CCO-8 product
specification for mounting, wiring
and voltage limits.
Contact Closure Inputs
• 2 closure inputs are available at
the Softswitch128 controller.
• May be configured as pull up to
15 or 24VDC (externally supplied)
or pulled down to common.
• Programmable as maintained or
momentary.
• Functions are programmable on
contact close, contact open or
both.
Wallstations
• Two, four, and eight button
EOMX wallstations may be used.
• One to seven button seeTouch
TM
and single button FOMX controls
are also available.
• Buttons are programmable to
select patterns, toggle circuits or
activate delay-to-off.
• Buttons are programmed at the
Softswitch128 controller.
• Wall controls are powered by and
communicate via the
Softswitch128 low-voltage
communication link.
• See specification submittal
sheets for EOMX, seeTouch, and
FOMX wallstations for wiring and
mounting details.
• Keyswitch control is also
available.
Specifications (continued)
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softswitch128GL-5 07.15.05
Power Equipment
Softswitch128TM
Switching Systems
Number of
Circuits
Prefix
X P S 2 4 - 2 4 0 F T
Prefix
XPS for Softswitch128 panels.
Number of Circuits
Total number of circuits (switch legs) in the panel.
Voltage
240 for 220-240V
Feed
FT for feed through panels.
Voltage
Feed
How to Build a Model Number
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softswitch128GL-6 07.15.05
Power Equipment
Softswitch128TM
Switching Systems
XPS8 8
XPS12 12
XPS16 16
Mini Softswitch128 Feed-Through Models
for 220-240V
Standard Softswitch128 Feed-Through Models
for 220-240V
XPS20 20
XPS24 24
XPS28 28
XPS32 32
XPS36 36
XPS40 40
XPS44 44
XPS48 48
Model
Prefix
Switch
Legs
Feed
Type
Maximum
Feed
Model
Prefix
Switch
Legs
Feed
Type
Maximum
Feed
Feed-Through Softswitch128 Panel Models
(without branch circuit breakers)
Feed
Through
16A
Feed
Through
16A
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softswitch128GL-7 07.15.05
Power Equipment
Softswitch128TM
Switching Systems
Mini Softswitch128 Panel Dimensions
2.21
(56)
1.34
(34)
2.21
(56)
4.09
(104)
15.13
(384)
14.38 (365)
0.15
(4)
54.15
(105)
24.00
(610)
10.75
(273)
21.50
(546)
8.00
(203)
15.875
(403)
24.50
(622)
Left Side View
Top View
Right Side View
Bottom View
All dimensions in inches (mm)
Suggested Mounting Height:
Mount Mini Softswitch128 panel at
a height of 45 inches (1130 mm),
measured from floor to bottom of
panel for optimal LCD viewing.
Cover
Front View
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softswitch128GL-8 07.15.05
Power Equipment
Softswitch128TM
Switching Systems
Standard Softswitch128 Panel Dimensions
4.15 (105)
41.75 (1060)
2.69 (68)
2.43 (62)
15.875
(403)
8.00
(203)
14.375
(365)
59.50 (1511)
2.43 (62)
11.00
(279)
15.125
(394)
59.00
(1498)
4.21
(107)
0.150
(4)
All dimensions in inches (mm)
Bottom View
Left Side View
Top View
Right Side View
Suggested Mounting Height:
Mount Standard Softswitch128 at a
height of 26 inches (660 mm),
measured from floor to bottom of
panel for optimal LCD viewing.
Cover
Front View
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softswitch128GL-9 07.15.05
Power Equipment
Softswitch128TM
Switching Systems
• For indoor use only.
• Consult dimensions page for panel size, conduit
knockouts, and mounting holes.
• Mount where ambient temperature is 0-40º C
(32-104º F).
• Panels weigh up to 68.5 kg (150 lbs.). Reinforce wall
structure for weight and local codes.
• Mount panel where audible noise is acceptable.
(Internal relays click.)
• Mount panel so line (mains) voltage wiring is at least
1.8m (6 ft.) from sound or electronic equipment and
wiring.
• Mount within 7º of true vertical.
Surface Mounting
• Lutron recommends using 6mm (.25 in.) mounting
bolts.
• Leave 38mm (1.25 in.) clearance to each side of
panel for the cover.
Recess Mounting
• Mount panel from flush to 3mm (.125 in.) below
finished wall surface.
• Leave 38mm (1.25 in.) clearance to each side of
panel for cover.
Distribution
Panel
Feed Wiring and
Switch Legs to loads
PELV Wiring
here only! Use
this location for
proper voltage
spacing.
Feed Wiring
and Switch
Legs
Feed Wiring and
Switch Legs to loads
Feed Wiring
and Switch
Legs
Front View
Side View Front View Side View
Distribution
Panel
Suggested Mounting Height:
For optimum viewing of the Softswitch128
Controller, mount Softswitch128 panels at the
recommended distance from the floor
(measured from floor to bottom of panel).
Mounting for Softswitch128 Panels
Panel Size
Distance
Mini
Standard
45 in (1130mm)
26 in (660mm)
PELV Wiring
here only! Use
this location for
proper voltage
spacing.
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SPECIFICATION SUBMITTAL
softswitch128GL-10 07.15.05
Power Equipment
Softswitch128TM
Switching Systems
L
SL
L
SL
L
SL
L
SL
N
L
Earth Ground
Wire the Softswitch128 panel as shown. Use a trough when the Softswitch128
Panel is not adjacent to a distribution panel. Splice Neutrals in trough.
Do not remove bypass jumpers until load
wiring is verified.
Leaving bypass jumpers installed allows
Softswitch128 panels to be used to provide
temporary lighting, until load wiring is verified.
Switching
Module
(4 outputs)
Softswitch128
Controller
Hot/Live
Neutral
Load
Hot/Live
Neutral
Switched Load
Wiring:
Each switched
circuit requires a
dedicated 16A
circuit breaker and
feed wiring to/from a
distribution panel.
Control Wiring:
Control wiring
requires a dedicated
feed and circuit
breaker.
Feed-Through Softswitch128 Wiring Overview
Ground Bus
Circuit Breaker
Circuit Breaker
Wire Sizes
• #14 AWG (2.0 mm
2
) to #10 AWG (4.0 mm
2
) for Feed
Wiring and Switched Load Wiring.
• Power (Hot/Live) and Switched Hot/Live connect
directly to Terminal Block for Switch Legs.
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softswitch128GL-11 07.15.05
Power Equipment
Softswitch128TM
Switching Systems
• Low-voltage PELV wiring is used for all system communications.
• Wiring must be daisy-chained.
• Low-voltage wiring must run in a separate trough from line (mains) voltage.
• Must be less than 600m (2000 ft.) long.
• Install Link Terminators (LT-1) at the start and end of the PELV Link.
PELV wiring link requires:
• Two #12 AWG (2.5 mm
2
) conductors for control wiring.
• One shielded, twisted pair #18 AWG (1.0 mm
2
) for data link.
Up to 32 devices
and 8 panels
FOMX-1B
Softswitch128 Panel
SO-7B
OMX-AV
Lutron has approved cable from Belden, Liberty, Alpha, and Signature.
Ask for Lutron GRAFIK Eye® Cable.
Two Contact
Closure Inputs
Low-Voltage PELV Wiring
Note: Link Terminators (LT-1) are
required at the start and end of
the Softswitch128 PELV link.
LT-1s are included with the
Softswitch128 panel.
OMX-CCO-8
EOMX-2B
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softswitch128GL-12 07.15.05
Power Equipment
Softswitch128TM
Switching Systems
For the PELV link, use GRX-CBL-46L or equivalent. The cable consists of:
• Two #12 AWG (2.5 mm
2
).
• One #22 AWG (.625 mm
2
) twisted shielded pair.
• One #18 AWG (1.0 mm
2
) for Emergency Sense.
For contact closure input wiring use #18 AWG (1.0mm
2
) or larger.
Keep wire runs less than 152 m (500 ft.).
1
234
D
5
1
234
1: Common (black)
2: V+ (red)
3: MUX (purple)
4: MUX (white)
D: Shield/Drain (bare)
5: Sense (orange)
(colors as per GRX-CBL-46L)
1: Contact Closure 1
2: Common
3: Contact Closure 2
4: Common
Softswitch128 Controller
(top)
Softswitch128 Controller Wiring
12