CTC Union SB142 Manuale utente

Product Manual

MNX10015 / REV C

MODEL SB142, SB242

Dual Output Series Switch Boxes

MNX10015 / Rev C

10/24/2013 1

Section I

Overview

Introduction......................................................................………….… 2

Description.......................................................................................... 2

Section II

Installation

Mounting……….................................................................................. 3

Electrical Connections........................................................................ 6

Section III

Maintenance

General............................................................................................. 11

Warranty........................................................................................... 12

Figures

Figure 1 (Dual Output Switch Box Layout)......................................... 3

Figure 2 (Mounting Bracket Placement)............................................. 4

Figure 3 (Conduit Entry for Switch Box)............................................. 4

Figure 4 (Ground Wire Placement)..................................................... 5

Figure 5 (Earth Ground Placement)................................................... 5

Figure 6 (Identifying Cable marks)..................................................... 6

Figure 7 (Cable Entry)........................................................................ 6

Figure 8 (Bottom View for Cord Grip Installations)............................. 7

Figure 9 (Connecting Cables to Switch Box)...................................... 8

Figure 9A (Connecting Biaxial Sensor)………………………………… 8

Figure 9B (Optional Plug-in Block Box).............................................. 9

Figure 10 (Connecting Cables to Enclosure).................................... 10

Figure 11 (Connecting Cables to Enclosure).................................... 10

Figure 12 (Accelerometer Verification Meter)................................... 11

Contents

MNX10015 / Rev C

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Introduction

This document contains information on the operation, installation and

maintenance of the SB142/SB242 Dual Output Switch Boxes. This manual is an

overview of the system and references the specific component manuals. User

manuals are provided with the system for all configurable internal components.

Description

Common cable termination point for bringing sensor cables into a switch box for

routine data collection with portable data collectors.

Section I

Overview

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Mounting Steps

Note: The term “Sensor” used in the notes below, refers to vibration

sensors. An accelerometer is a type of vibration sensor and can therefore

be used whenever sensor is referenced.

Examples of measurements:

•Dual Outputs for Temperature and Vibration

BNC J1 & 2 pin output – Dynamic Vibration

BNC J2 – Temperature (in Volts DC)

•Biaxial Sensor for Axis “X” and “Z”

BNC J1 & 2 pin output Axis “X”

BNC J2 Axis “Z”

•Dual Outputs for Loop Power and Vibration (typically not used in this

application)

BNC J1 & 2 pin output – Dynamic Vibration

BNC J2 – 4-20mA output

Requires optional JB905-1A Block to provide power from PLC/DCS

system and to LP series sensor.

Section II

Installation

Measurement

Locator

Card

Portable

Data Collector

Access Points

BNC-J1 for Measurement Point A 2 Pin Output

BNC-J2 for Measurement Point C for Point A

Switch

(4) Position

Blocks

for Sensor

Inputs

(12) Position Blocks

(optional)

for Signal throughput

(not affected by

switch)

Figure 1. Dual Output Switch Box Layout

MNX10015 / Rev C

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1. For SB142 Series Switch Boxes (Fiberglass Enclosure):Attach the

enclosed mounting brackets to the Switch Box at the pre-determined

locations (SB242 Series Switch Boxes {Stainless Steel} are supplied with

mounting brackets attached)

Note: If you have purchased a switch box without cable entries

provided, you should add your own entry prior to mounting the switch

box.

Note: CTC does not recommend putting holes in the top of the switch

boxes due to access and moisture concerns.

2. Conduit Entry: If you are running conduit to your switch box, ensure the

conduit cable entry enters from the bottom of the enclosure when mounted.

(Figure 3)

Note: To ensure moisture will not flow into the switch box, a hole should

be drilled at the lowest point in the conduit to provide drainage for any

moisture.

Figure 2. Mounting Bracket Placement

Mounting

Brackets

Figure 3. Conduit Entry for Switch Box

Correct Incorrect

Drill Drain

Hole Here

MNX10015 / Rev C

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3. Grounding of the Switch Box:Ensure the shield ground wire on the SB142

Series Switch Boxes (Fiberglass Enclosures) is connected to earth ground.

Note: The SB242 Series Switch Boxes (Stainless Steel Enclosures) are

internally grounded to the enclosure.

Note: For SB142 Series Fiberglass Enclosure, customer is required to

supply wire from ground to shield ground lug, located on the outside of

the enclosure.

Option 1. For SB142 Series Switch Boxes: When mounting the Switch Box to

earth ground (such as an I-Beam); mount the shield ground wire

behind one of the mounting brackets on the enclosure. (Figure 4)

Option 2. For SB142 Series Switch Boxes: When mounting the switch box to a

non- grounded structure, ensure the shield ground wire or customer

supplied ground wire is tied to a source of earth ground. (Figure 5)

CTC

Vibration

Switch

Box

Figure 4. Ground Wire Placement

Earth

Ground

External Ground Cable

Figure 5. Earth Ground

MNX10015 / Rev C

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4. Installation of Sensor/Signal Input Cable:Run sensor/signal input cable to

the location of the switch box. Ensure the correct amount of cable is

allocated. Splicing cable is not recommended.

Note: For conduit installations, conduit would be run to the switch box

prior to completion of Step 4.

•To help keep cable locations organized, it is recommended that cables are

marked on BOTH ends and exact locations of the sensors are matched with

their cable.

•Run each cable through the cable entry at the bottom of the switch box.

•For cord grip cable entry, take off the cord grip cover with bushing and run

cable into enclosure, hand tighten cord grip cover to base to prevent damage

of cord grip.

•For 16-32 channel switch boxes, wire tie bases are provided to help manage

the cable into the box, secure cables for the top two boards, if applicable.

Tip: Run rows of cable on same row as on the board, for example, channels

1-6 on Board 1 should be on the outer most left hand side to allow proper

wiring.

Figure 7. Cable Entry

(Representative Photo for Illustration Purposes only)

Figure 6. Identifying Cable Marks

CTC Cable Label

BLUNT CUT END

(Connected in

Junction Box)

Cable Identification Markers

MNX10015 / Rev C

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For SB142 and SB242 Series, attach sensor/signal input cables as follows:

a. Strip outer jacket of cable back 1 ¼”-1 1/2” and remove all of the

shielding.

b. Strip red, black, and (white) insulation back ¼” ( Please Note for

Biaxial sensor you will strip green, black and white conductors omitting

red conductor refer to figure 9A).

c. Remove each terminal plug from respective channel.

Orientation is as follows:

(see Figure 9)

•Red (White in 4-20mA applications, Green for Biaxial) insulated

conductor wire is connected to socket (A).

•Black insulated conductor wire is connected to socket (B).

•White (Red in 4-20mA applications) insulated conductor wire is

connected to socket (C).

•Shield/Drain wire is connected to ground socket (GND).

•Depress selected position button to open terminal for respective wire.

(Small flat blade screwdriver is recommended).

Note: (4) position (and optional 12 position) plug can only be inserted one

way to ensure proper wiring.

Installation considerations for Dual Output Switchbox:

There are several options for consideration of installation of a Dual Output

Switchbox. (Figure 9)

Input signal options are:

•Temperature and Dynamic Acceleration

•Biaxial Sensor

•Dual Vibration with 4-20mA Output and Dynamic output

Figure 8. Bottom View for Cord Grip Installations

MNX10015 / Rev C

10/24/2013 8

Temperature and Dynamic Acceleration: (Figure 9)

a. Socket A – Positive (+ RED) connection for the dynamic acceleration and

with output on the BNC “J1” and the (2) pin Output connectors.

b. Socket B – Negative (- BLACK) connection for the dynamic acceleration

and volt output for temperature.

c. Socket C – Positive (+ WHITE) connection for the voltage output for

temperature with output on the BNC “J2”, only.

d. Socket GND – Shield/Drain wire connection that is directed to “Earth”

ground.

Biaxial Sensor: (Figure 9A)

a. Socket A – Positive (+ Green ) connection for the “X” axis acceleration and

with output on BNC J1 and the 2 pin Output connectors.

b. Socket B – Negative (-Black) connection for both the “X” and “Z” axis

channels.

c. Socket C – Positive (+ White) connection for the “Z” axis acceleration with

output on the BNC J2 only.

d. Socket GND – Shield/Drain wire connection that is directed to “Earth”

ground.

Figure 9. Connecting Cables to Switch Box

For Vibration and Temperature

Figure 9A. Connecting Cables to Switch

Box for Biaxial Sensor

MNX10015 / Rev C

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Dual Vibration with 4-20mA output and Dynamic outputs: (Figure 9B)

a. Socket A – Positive (+ WHITE) connection for the dynamic acceleration

and would output on the BNC “J1” and the (2) pin MIL output connectors.

b. Socket B – Negative (- BLACK) connection for the dynamic acceleration

and 4-20mA velocity output.

c. Socket C – Positive (+ RED) connection for the 4-20mA signal, and would

output to the BNC “J2”, (not used in this application).This setup requires

optional (12) position plug in block (CTC #JB905-2A) to wire LP series

sensor to the PLC/DCS system. The PLC/DCS system then provides the

power for the loop in this setup, using CTC’s LP series sensors. (Figure

9A)

d. Socket GND – Shield/Drain wire connection that is directed to “Earth”

ground.

PLEASE NOTE: In this application, the portable data acquisition system

needs to have sensor power turned off before collecting data.

Figure 9B. Optional Plug-in Block

#JB905-2A for Vibration and 4-20mA

*NOTE:

WHITE “A” terminals not used

Signal Wire Outputs

Optional Plug-in Block

CTC part # JB905-2A

Sensor

Wire

Inputs

White

Black

Red

GND

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