DriSteem Vapor-Logic Guia de Instalação descarregar pdf (Página 11)

Installing Modular Cable

Important: To properly identify the second remote key

pad to the master VAPOR-LOGIC microprocessor, a

shunt connection is provided and installed by

DRI-STEEM across a connector pin. Refer to the digital

module printed circuit board in figure 19-1 on page 19

to confirm location and placement.

Align the front section over the two top finger hooks on

the back section, rotate down, and snap front section

onto the back section. Route modular cable as needed

to control cabinet and drill necessary hole for appropri-

ate cable strain relief fitting. Note: Do not wrap cable

around the key pad. When routing modular cable

inside the control cabinet, route cable away from all

power wiring and connect the male modular plug into

either VAPOR-LOGIC printed circuit board-mounted

female modular receptacles, J1 or J2. Push male plug

in until you hear a “click.” (The cable may be plugged

into either J1 or J2 on the keypad as well.) The 4-wire

cable provides the DC power to the digital module and

completes the RS485 type digital communication

between the local and/or remote modules and the

VAPOR-LOGIC control board.

Caution: When fabricating longer modular cables,

electrical polarity is very important in securing the

type RJ11 male plugs to cable. Both ends of cable

polarity connections must be identical. (See figure

11-1.)

Installing the Key Pad

Do not leave the keypad inside the control cabinet.

The hardware is pre-mounted in a thermoplastic case

with front access to the digital display and key pad.

DRI-STEEM also provides 4-wire pre-connected

modular cables with male modular plugs attached. The

modular plugs are 6-position 4-wire type RJ11 arrange-

ment. Position case in a convenient location for easy

access. The ambient temperature range for modules

is 0° to 50° C. Exceeding these limits will result in a

poor reading, or no reading at all.

The digital display key pad case is fabricated in two

sections; light pressure at the base of the back of the

case will separate the two sections. The front half

includes the electronic display module control board

and key pad, which are secured by four screws.

DRI-STEEM recommends the back section of enclo-

sure be secured to a standard electrical switch box with

modular cable routed out the rear of the case. (See

figure 11-2.)

A second choice is a direct mount to any surface using

field supplied screws. Route modular cable out the

bottom of enclosure. Because of various mounting

possibilities, first provide the necessary clearance holes

for the hardware you are using by opening the two pilot

mounting holes on the back of enclosure. Mount the

back of enclosure to a flat surface and secure as

necessary. Caution: Overtightening will distort the

back of the case.

VAPOR-LOGIC

KEY PAD / DIGITAL DISPLAY INSTALLATION

Figure 11-1: Cable Polarity Connections

4 Electrical

Connection

Points

Yellow

Green

Red

Black

Identical

Electrical

Polarity

Yellow

Green

Red

Black

RJ11 Type

Male Modular

Plug

Modular 4

Wire Cable

Figure 11-2: Exploded View of Key Pad/Digital Display

OM-411

OM-332

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