PAXUSB00 datasheet(7/32 Pages) REDLION

7 / 32 page

1.0 InstallIng the Meter

2.0 settIng the JuMper and dIp swItches

2.1 SETTING THE JUMPER

The meter has one jumper for user input logic. When using the user inputs

this jumper must be set before applying power. The Main Circuit Board figure

shows the location of the jumper and DIP switch.

The user input jumper determines signal logic for the user inputs, when they

are used with user functions or for input signal direction. All user inputs are set

by this jumper.

2.2 SETTING THE INPUT DIP SWITCHES

The meter has six DIP switches for Input A and Input B terminal set-up that

must be set before applying power. NOTE: The PAXR only uses switches 1-3.

SWITCHES 1 and 4

LOGIC: Input trigger levels VIL = 1.5 V max.; VIH = 3.75 V min.

MAG: 200 mV peak input (must also have SRC on). Not recommended with

counting applications.

SWITCHES 2 and 5

SRC.: Adds internal 3.9 KΩ pull-down resistor, 7.3 mA max. @ 28 VDC,

VMAX = 30 VDC.

SNK.: Adds internal 7.8 KΩ pull-up resistor to +12 VDC, IMAX = 1.9 mA.

SWITCHES 3 and 6

HI Frequency: Removes damping capacitor and allows max. frequency.

LO Frequency: Adds a damping capacitor for switch contact bounce. Also

limits input frequency to 50 Hz and input pulse widths to 10 msec.

Main

Circuit

Board

REAR TERMINALS

FRONT DISPLAY

INPUT SET-UP

DIP SWITCHES

USER

INPUT

JUMPER

SRC

SNK

To access the jumper and switches, remove the meter base from the meter

case by firmly squeezing and pulling back on the side rear finger tabs. This

should lower the latch below the case slot (which is located just in front of the

finger tabs). It is recommended to release the latch on one side, then start the

other side latch.

Warning: Exposed line voltage exists on the circuit boards. Remove

all power to the meter and load circuits before accessing inside of

the meter.

Input B SRC.

Input B LO Freq.

Input B MAG.

Input A LO Freq.

Input A SRC.

Input A MAG.

SNK.

HI Freq.

Logic

HI Freq.

SNK.

Logic

Factory Setting

Installation

The PAX meets NEMA 4X/IP65 requirements when properly installed. The

unit is intended to be mounted into an enclosed panel. Prepare the panel cutout

to the dimensions shown. Remove the panel latch from the unit. Slide the panel

gasket over the rear of the unit to the back of the bezel. The unit should be

installed fully assembled. Insert the unit into the panel cutout.

While holding the unit in place, push the panel latch over the rear of the unit

so that the tabs of the panel latch engage in the slots on the case. The panel

latch should be engaged in the farthest forward slot possible. To achieve a

proper seal, tighten the latch screws evenly until the unit is snug in the panel

(Torque to approximately 7 in-lbs [79N-cm]). Do not over-tighten the screws.

Installation Environment

The unit should be installed in a location that does not exceed the operating

temperature and provides good air circulation. Placing the unit near devices

that generate excessive heat should be avoided.

The bezel should only be cleaned with a soft cloth and neutral soap product.

Do NOT use solvents. Continuous exposure to direct sunlight may accelerate

the aging process of the bezel.

Do not use tools of any kind (screwdrivers, pens, pencils, etc.) to operate the

keypad of the unit.

PANEL

LATCHING

SLOTS

BEZEL

PANEL

GASKET

PANEL

LATCH

LATCHING

TABS

PANEL

MOUNTING

SCREWS

-.00

(92 )

-.0

+.8

3.62 +.03

(45 )

1.77

-.0

+.5

-.00

+.02

PANEL CUT-OUT

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