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Ez-zone, Pm pid model system diagram – Watlow EZ-ZONE PM PID User Manual

Page 9

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Watlow EZ-ZONE

®

PM PID Controller

6

Chapter 1 Overview

EZ-ZONE

®

PM PID Model System Diagram

Universal Sensor Input, Configuration Communications,

Red/Green 7-Segment Display

Output Status

5

1

3

2

4

Indicates Zone

Address

Indicates I/O

Status

Zone

Address

6

Supervisory

&

Power

Board

Slot C

Output 2

none, switched dc, NO-ARC

power control (15 A), form A mechanical

(5 A) or Solid-State Relay (0.5 A)

Output 1

none, switched dc/open collect-

or, form C mechanical (5 A) relay, form A

solid-state (0.5 A) relay, process (V, mA)

off, heat, cool,

duplex, alarm,

retransmit,

event

off, heat, cool,

alarm, event

EZ Key/s

(PM4,6,8 and 9 only)

programmable event

Digital Output (or Input) 5 & 6

(optional) none, switched dc

off, heat, cool,

alarm, event

Network

remote user interface,

personal computer,

programmable logic

controller, human-

machine interface

EIA 485 Communications

Standard Bus, Modbus RTU (optional)

Digital Input (or Output) 5 & 6

(optional) none, switch, volts dc

None

Profile start/stop

Profile start

Profile hold/resume

Profile disable

TRU-TUNE+

®

disable

Control outputs off

Manual/auto mode

Tune

Idle set point

Force alarm

Loop & alarms off

Silence alarm

Alarm reset

Lock keypad

Restore user settings

Input sensor

PID

Controller

Board

Slot A

ramp-soak

with 4 files

(optional)

Input

Functions

Output

Functions

Analog Input 1

none, Thermocouple, RTD (100Ω,

1kΩ), Thermister 5kΩ, 10kΩ, 20kΩ,

40kΩ) Process (V, mV, mA) or 1k

Potentiometer