
Watlow EZ-ZONE
®
PM Integrated Controller • 14 • Chapter 1 Overview
EZ-ZONE
®
PM Integrated Model 1/8 and 1/4 DIN with CT System Diagram
Without 6 Digital I/O (slot D), Without Communications (slot E)
EZ-ZONE PM Integrated 8
th
DIN with CT System Diagram
Without 6-digital I/O (slot D), Without Comms Card (slot E)
If limit, this output
must be limit
Output 4
none, 15A NO-ARC, switched dc,
5A mechanical relay (form A), or
0.5A SSR (form A)
Output 1
none, switched dc/open collector,
5A mechanical relay (form C),
process, or 0.5A SSR (form A)
Analog Input 1
none, Thermocouple, RTD (100Ω,
1kΩ), Thermistor 5kΩ, 10kΩ, 20kΩ,
40kΩ) Process (V, mV, mA) or 1k
Potentiometer
PID
Controller
(Optional -
Ramp/Soak max 4
files, 40 steps)
Slots A
(Optional)
100 to 240Vac
20 to 28 Vac or 12 to 40Vdc
Modbus
Address 1 - 247
Standard Bus
Zone Address
1 - 16
Supervisory &
Power Board
Slot C
Input Sensor
EIA-485 Communication
Standard Bus
(optional Modbus RTU)
RUI, EZ-ZONE
Controllers, PLC, PC
or HMI
off, heat, cool,
retransmit, alarm,
duplex or event
off, heat, cool,
alarm, event or
limit
Indicates Zone
Address & Channel
Indicates I/O
Status
off, heat, cool,
alarm, or event
Current Transformer
Sense (CT)
Slots B
(Optional)
Analog Input 2
Current Transformer
Current
Transformer
Output 2
none, 15A NO-ARC, switched dc,
5A mechanical relay (form A), or
0.5A SSR (form A)
Output 3
none, switched dc/open collector,
5A mechanical relay (form C),
process, or 0.5A SSR (form A)
off, heat, cool,
retransmit, alarm,
duplex or event
off, heat, cool,
alarm or event
Number of inputs and outputs and various combinations of the same will vary
depending upon part number; see ordering matrix for more detail.
Digital Input (or Output) 5 & 6 (optional)
Programmable Functions
EZ Key 1 & 2
Programmable Functions
Digital Output (or Input) 5 & 6
(optional) none, switched dc
- None
- Idle set point
- Tune
- Alarm clear, request
- Silence alarm
- Manual/auto mode
- Control mode
- Remote set point
enable
- Lock keypad
- Force alarm
- TRU-TUNE+
®
disable
- Loop & alarms off
- Profile disable
- Profile hold/resume
- Profile start
- Profile start/stop
- Restore user settings
- Event inputs
- Math
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