Lutron Electronics Softswitch128 User manual

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Softswitch128TM
Installation Guide
SwitchingSystem
Please Read

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Step by Step Installation Instructions for Softswitch128TM System 3
Page
Step 1: Panel Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Step 2: Panel Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Step 3: Control Station Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Step 4: Address Control Stations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Step 5: Feed and Load Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Step 6: Activate Loads in Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Step 7: Remove Bypass Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Step-by-Step Instructions
Table of Contents
Overview
Use this guide to successfully install a Softswitch128 system. This guide describes panel installation, control
station wiring, and load activation.

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4 Step by Step Installation Instructions for Softswitch128TM System
Step 1
Panel Dimensions
24” Mini Panel Dimensions
Bottom View
Top View
Right Side
Left Side
The dimensions are shown in inches and (mm).
When surface mounting, the keyholes
accept a maximum of 1/4 in. (6 mm)
mounting bolt. This size is
recommended. When flush mounting,
mount the panel between flush and 1/8
in. (3 mm) below finished wall surface.
Suggested Mounting Height:
Mount Mini panels 45 in. (1143 mm),
above the floor (measured to bottom
of panel) for optimal Controller viewing
height.
Front View
14.38 (365)
15.875
(403)
8.00
(203)
2.2 (56) 4.2
(107)
0.5 (4)
1.34
(34)
21.50
(546)
24.50
(622)
24.00
(610)
2.21
(56) 15.13 (384)
10.75
(273)
4.09
(104)
Cover

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Step by Step Installation Instructions for Softswitch128TM System 5
Step 1 (continued)
Panel Dimensions
Bottom View
Top View
Right Side
59” Standard Panel Dimensions
Suggested Mounting Height:
Mount Standard panels 25 in. (635 mm),
measured from floor to bottom of panel,
for optimal Controller viewing height.
The dimensions are shown in inches and (mm).
When surface mounting, the keyholes
accept a maximum of 1/4 in. (6 mm)
mounting bolt. This size is recommended.
When flush mounting, mount the panel
between flush and 1/8” (3 mm) below
finished wall surface.
Left Side
Front View
14.375
(365)
15.875
(403)
2.43 (62)
8.00
(203)
4.21
(107)
0.150
(4)
2.69 (68)
41.75 (1060)
59.50 (1511)
59.00
(1499)
2.43 (62) 11.00
(279)
15.125 (394)
4.15 (105)
Cover

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6 Step by Step Installation Instructions for Softswitch128TM System6 Step by Step Installation Instructions for Softswitch128TM System6 Step by Step Installation Instructions for Softswitch128TM System
Step 2
Panel Mounting
Panel and TUB Mounting
Mounting Guidelines:
• For Indoor Use Only! NEMA, Type 1 enclosure, IP20.
• Mount where ambient temperature is 32 - 104º F
(0 - 40º C).
• Panels weigh up to 150 pounds (68.5 kg). 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 6
feet (1.8 m) from sound or electronic equipment and
associated wiring.
• Mount within 7º of true vertical.
Surface Mounting
• Lutron recommends using 1/4 in. (6 mm) mounting
bolts.
• Allow room for cover. Leave 1 1/2 in. (38 mm)
clearance to each side of panel.
Recess Mounting
• Mount panel from flush to 1/8 in. (3 mm) below
finished wall surface.
• Allow room for cover. Leave 1 1/2 in. (38 mm)
clearance to each side of panel.
Distribution
Panel (if feed
through)
Feed Wiring and
Switch Legs to
loads
Class 2
(PELV) Wiring
Feed Wiring
and
Switch
Legs
Feed Wiring and
Switch Legs to
loads
Class 2
(PELV) Wiring
Feed Wiring
and
Switch
Legs
Front View Side View Front View Side View
Distribution
Panel (if feed
through)
Panel Size Distance
Mini, TUB16
Standard, TUB48
45 in. (1130 mm)
26 in. (660 mm)
Suggested Mounting Height:
For optimum Controller viewing, mount panels
the following recommended distance from the
floor (measured from floor to bottom of panel):

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Step by Step Installation Instructions for Softswitch128TM System 7
Step 3
Control Station Wiring
Maximum total length of the control link is 2,000 feet.
This distance is based on proper shielding of the
twisted/shielded pair, proper wire size, and the use of
link terminators (LT-1) at each end of the link. If
unapproved cable or smaller wire is used, control link
length must be de-rated according to the following
chart:
NNootteess::
• Make wire connections inside the wallbox and
Softswitch128 panel.
• All control wiring is Class 2/PELV. Do not run any
Class 2/PELV wire with line voltage (mains voltage)
wiring.
• The order of control addresses on the control link is
not important.
LT-1 LT-1
2000 ft. (600 m) maximum
Terminal 1 & 2
Wires Sizes
#12 AWG
#14 AWG
#16 AWG
#18 AWG
2.5 mm2
1.0 mm2
Max. Control
Link Length
2000 ft. (600 m)
1400 ft. (425 m)
900 ft. (275 m)
600 ft. (180 m)
450 m (1500 ft.)
200 m (650 ft.)
Control Station Wiring Overview
Note: Link Terminators (LT-1) are
required at the start and end of
the Softswitch128 Class 2/PELV
Link.
Control Station Wiring Specifications
Notice! If Link Terminators (LT-1) are not
used or improper wiring topology is
employed, the system will not
communicate properly.
Softswitch128 Panels
Control Stations:
Wallstations, contact closure input, contact
closure output, and RS232 devices
The Softswitch128 system communicates to control stations using a Class 2/PELV low voltage link. Control
stations include wallstations, contact closure input and output devices, and RS232 interfaces. Wallstations are
to be mounted in a standard wallbox. Care must be taken in wiring the link; please follow these guidelines:
• Link must be daisy chained.
• Must run low-voltage in separate trough from line (mains) voltage.
• Link must be less than 2000 feet (600 m) long.
• Install Link Terminators (LT-1) at the start and end of the Class 2/PELV daisy-chained link.

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8 Step by Step Installation Instructions for Softswitch128TM System8 Step by Step Installation Instructions for Softswitch128TM System8 Step by Step Installation Instructions for Softswitch128TM System8 Step by Step Installation Instructions for Softswitch128TM System
Wiring Notes:
• Use a wire connector to attach one
#18 AWG wire for Common (terminal
1) and one #18 AWG wire for 24 V
(terminal 2) from the Class 2/PELV
link to the control. Two #12 AWG
wires cannot both be terminated at
the control station connector.
Maximum wire length from link to
control is 8 feet (2.5 m).
• Only connect the Drain/Shield wire
(bare copper) to terminal ‘D’, in
Softswitch128 panels. Maintain the
shield throughout the link but do not
allow it to touch ground (earth) or
wallstation circuitry.
Panel and Control Station Wiring
Step 3 (continued)
Control Station Wiring
1
2
3,4,D
1234D5 1234 1234D5 1234
1
2
3,4,D
5
To Softswitch128
control stations
Control Power:
(2) #12 AWG (2.5 mm2)
1: Common
2: 24 V
Control Data:
(1) twisted shielded pair
#22 AWG (.625 mm2)
3: Mux
4: Mux
D: Drain/Shield
To additional
Softswitch128
panels
Emergency Sense
(1) #18 AWG (1.0 mm2)
5: Sense Line
Control Station Wiring Details:
The control station link (Class 2/PELV) that connects all Softswitch128 devices (panels and control stations) must
contain four wires: two for power and two for data. The illustration below shows wire sizes and wire type
required. Use of Lutron cable GRX-CBL-46L is recommended. A fifth wire may be used for emergency sense, if
required.
4
3
2
1
1234
D51234
Softswitch128 Controller Softswitch128 Controller
control station
connector
Drain wire

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Step by Step Installation Instructions for Softswitch128TM System 9
Step 4
Address Control Stations
Wallstations and other controls on the low voltage link must be uniquely addressed. Devices on the link may not
share an address. The Address Switches on each device must be properly set. Please refer to the installer’s
guide for each low voltage device to locate the Address Switches on that device. Use the space provided to
record the name or location of the control. The order of the addresses on the link does not matter.
This page will be helpful when programming the Softswitch128 system. See the Softswitch128 Setup and
Maintenance Guide for programming details.
1
12345
ON
1
12345
ON
1
12345
ON
2
12345
ON
3
12345
ON
4
12345
ON
5
12345
ON
6
12345
ON
7
12345
ON
8
12345
ON
9
12345
ON
10
12345
ON
11
12345
ON
12
12345
ON
13
12345
ON
14
12345
ON
15
12345
ON
16
12345
ON
17
12345
ON
18
12345
ON
19
12345
ON
20
12345
ON
21
12345
ON
22
12345
ON
23
12345
ON
24
12345
ON
25
12345
ON
26
12345
ON
27
12345
ON
28
12345
ON
29
12345
ON
30
12345
ON
31
12345
ON
32
12345
ON
Address Settings Address Settings Address Settings

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10 Step by Step Installation Instructions for Softswitch128TM System10 Step by Step Installation Instructions for Softswitch128TM System10 Step by Step Installation Instructions for Softswitch128TM System10 Step by Step Installation Instructions for Softswitch128TM System
Step 5
Feed and Load Wiring
You do not need to install a temporary distribution
panel. Connect load wires into the appropriate
terminal blocks. Each input breaker can supply
power to a load while the bypass jumper protects
the switch module from load faults.
L
SL
Input circuit breaker
Bypass jumper protects the
switch module from load
faults.
Warning! Verify that the Softswitch128
panel is fed from the correct voltage. A
feed miswire or loss of a feed neutral can
cause over-voltage damage to the
equipment.
Feed and Load Wiring
3Ø 4W
Isolation Switch
Accepts:
#14 AWG (2.0 mm2)
to #2 AWG (35 mm2)
Panels with Branch Circuit Breakers
230V (CE), 220-240V (non-CE)
XPS
Model
Switch
Legs
Feed
Type
Max
Feed
XPS8
XPS12
XPS16
XPS20
XPS24
8
12
16
20
24
125 A
Use the charts below to determine feed and load wiring sizes for Softswitch128 panels. Note that load circuit
wiring sizes are shown bottom right.
Load Circuit Wiring
Terminal blocks accept one #14 AWG (1.5 mm2)
through #10 AWG (4.0 mm2) or two #18 AWG
(1.0 mm2) through #16 AWG wire. Preferred entry
is from the top of the panel.
Feed
Through
Feed-Through Panels
230V (CE), 220-240V (non-CE)
XPS
Model
Switch
Legs
Feed
Type
Max
Feed
XPS8
XPS12
XPS16
XPS20
XPS24
XPS28
XPS32
XPS36
XPS40
XPS44
XPS48
8
12
16
20
24
28
32
36
40
44
48
16 A
Temporary Lighting