Watlow PM PLUS 6 - Page 22

Watlow PM PLUS™ 6 • 22 • Chapter 2: Installation
Wiring Notes
Maximum wire size termi-
nation and torque rating:
0.0507 to 3.30 mm2 (30
to 12 AWG) single-wire
termination or two 1.31
mm2 (16 AWG)
0.56 Nm (5.0 in-lb.)
torque
Adjacent terminals may
be labeled differently
depending on the model
number.
Do not connect wires to
unused terminals.
Maintain electrical isola-
tion between analog
input 1, digital input-
outputs, switched dc/
open collector outputs
and process outputs to
prevent ground loops.
This equipment is suit-
able for use in CLASS
I, DIVISION 2, Groups
A, B, C and D or Non-
Hazardous locations only.
Temperature Code T4A
Wiring Warnings
ç
Use National Electric
(NEC) or other country-
specic standard wiring
and safety practices
when wiring this control-
ler to a power source,
electrical sensors or pe-
ripheral devices. Failure
to do so may result in
damage to equipment
and property, and/or in-
jury or loss of life.
Explosion Hazard - Dry
contact closure Digital
Inputs shall not be used
in Class I Division 2 Haz-
ardous Locations unless
switch used is approved
for this application.
Explosion Hazard – Sub-
stitution of component
may impair suitability for
CLASS I, DIVISION 2.
Explosion Hazard - Do
not disconnect while the
circuit is live or unless
the area is known to be
free of ignitable concen-
trations of ammable
substances.
Input 1, 2 Process
Input 1: PM _ [C,R,] _ _ _ - _ _ _ _ _ _ _ (-S1/+R1),(+T1/-S1)
Input 2: PM _ _ _ _ _ - _ [C,R,L] _ _ _ _ _ (-S2/+R2),(+T2/-S2)
-
+
S_
R_
volts
Slot A, B
-
+
T_
S_
amperes
Slot A, B
• 0 to 20mA @ 100Ω input impedance
• 0 to 10VDC @ 20kΩ input impedance
• 0 to 50mVDC @ 20kΩ input impedance
• Scalable
Input 1,2 Potentiometer
Input 1: PM _ [C,R] _ _ _ - _ _ _ _ _ _ _ (S1/R1)
Input 2: PM _ _ _ _ _ - _ [C,R,L] _ _ _ _ _ (S2/R2)
S_
R_
Slot A, B
CW
CCW
• Use a 1kΩ potentiometer.
Input 1, 2 Thermistor
Input 1: PM _ [J,N] _ _ _ _-_ _ _ _ _ _ _ (S1/R1)
Input 2: PM _ _ _ _ _ - _ [J,P,M] _ _ _ _ _ (S2/R2)
S_
R_
Slot A, B
• >20MΩ input impedance
• 3µA open-sensor detection
Input 2 Current Transformer
PM _ _ _ _ _ - _ [T] _ _ _ _ _
T2
S2
Slot B
• Input range is 0 to 50mA
• Current transformer part number: 16-0246
• 100Ω input impedance
• Response time: 1 second maximum
• Accuracy +/-1 mA typical