Lutron Electronics Softswitch128 User manual

Softswitch128TM

Installation Guide

SwitchingSystem

Please Read

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.

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

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

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):

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.

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

3,4,D

1234D5 1234 1234D5 1234

3,4,D

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.

1234

D51234

Softswitch128 Controller Softswitch128 Controller

control station

connector

Drain wire

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.

12345

Address Settings Address Settings Address Settings

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.

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

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

16 A

Temporary Lighting

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