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Watlow EZ-ZONE
®
PM Integrated Controller • 6 • Chapter 1 Overview
EZ-ZONE
®
PM Integrated Model 1/16 DIN with a Limit — Input/Output
(no communications options 2 to 3)
Universal Sensor Input, Configuration Communications,
Red/Green 7-Segment Display
Supervisory
&
Power
Board
Slot C
PID
Controller
Board
Slot A
ramp-soak
with 4 files
(optional)
Output 4
form A mechanical (5 A) relay
Output 3 none, switched dc/open
collector, form C mechanical (5 A) or
solid-state (0.5 A) relay, process (V, mA)
Output 2 none, switched dc, no-arc
power control (15 A), form A mechanical
(5 A) or solid-state (0.5 A) relay
Output 1 none, switched dc/open
collector, form C mechanical (5 A) or
solid-state (0.5 A) relay, process (V, mA)
off, heat, cool,
duplex, alarm,
retransmit,
event
off, heat, cool,
alarm, event
limit
EZ Key
programmable event
Digital Output (or Input) 5 (optional)
none, switched dc
Digital Output (or Input) 6 (optional)
none, switched dc
off, heat, cool,
alarm, event
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)
Limit
Controller
Board
(optional)
Slot B
Analog Input 1 thermocouple,
RTD, process (V, mV, mA, 1k po-
tentiometer)
Digital Input (or Output) 5
(optional) none, switch, volts dc
Digital Input (or Output) 6
(optional) none, switch, volts dc
none, limit reset,
idle set point,
tune,
alarm reset,
silence alarm,
manual/auto mode,
control outputs off,
lock keypad,
force alarm,
TRU-TUNE+
®
disable
loop & alarms off,
profile disable,
profile hold/resume,
profile start,
profile start/stop,
restore user settings
input sensor
input sensor
Input
Functions
Output
Functions
Analog Input 2 thermocouple,
RTD, process (V, mV, mA, 1k po-
tentiometer)
off, heat, cool,
duplex, alarm,
retransmit,
event, limit
Integrated PID and Limit Controller
• Reduces wiring time and termination complexity compared to connecting separate products
• Reduces panel space
• Reduces installation costs
• Increases dependability with backup control sensor operation
• Increases user and equipment safety for over-under temperature conditions