Watlow PM PLUS™ 6
• 13 •
Chapter 1 Overview
System Diagrams
Current Monitoring - with Current Transformer, without Communications Card
• Detects heater current flow
• Provides an alarm indication of a failed-load issue.
Note:
Number of inputs and outputs and various combinations of the same will vary
depending upon part number; see ordering matrix for more detail.
Function Key
Programmable Event
Digital Output (or Input) 5 & 6
(optional) none, switched dc
Digital Input (or Output) 5 & 6
(optional)
none, switch, volts dc
Current
Transformer
Board
(optional)
Slot B
Inputs
Outputs
- None
- Idle set point
- Tune
- Alarm clear, request
- Force alarm
- Silence alarm
- Manual/auto mode
- Control outputs off
- Remote set point
enable
- Lock keypad
- TRU-TUNE+
®
disable
- Loop & alarms off
- Profile disable
- Profile hold/resume
- Profile start
- Profile start/stop
- Restore user settings
- Event inputs
Analog Input 1
none, Thermocouple, RTD (100Ω,
1kΩ), Thermistor 5kΩ, 10kΩ, 20kΩ,
40kΩ) Process (V, mV, mA) or 1k
Potentiometer
Output 1
none, switched dc/open collector, 5A
mechanical relay (form C), process
(V, mA), or 0.5A SSR (form A)
Output 2
none, 15A NO-ARC, switched dc,
5A mechanical relay (form A), or
0.5A SSR (form A)
Analog Input 2
Current Transformer
PID
Controller
(Optional -
Ramp/Soak max 4
files, 40 steps)
Slot A
(Optional)
Input Sensor
off, heat, cool
alarm, retransmit,
duplex, event
off, heat, cool
alarm, event
off, heat, cool
alarm, retransmit,
duplex, event
off, heat, cool
alarm, event
off, heat, cool
alarm, event
Modbus
Address
1 - 247
Standard Bus
Zone Address
1 - 16
Supervisory &
Power Board
Slot C
Current
Transformer
EIA-485 Communication
Standard Bus
(optional Modbus RTU)
RUI, Controllers,
PLC, PC or HMI
Output 3
none, switched dc/open collector, 5A
mechanical relay (form C), process
(V, mA), or 0.5A SSR (form A)
Output 4
none, 15A NO-ARC, switched dc,
5A mechanical relay (form A), or
0.5A SSR (form A)
