Watlow PM PLUS™ 6
• 27 •
Chapter 2: Installation
Wiring Notes
Maximum wire size
termination 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-Haz-
ardous locations only.
Temperature Code T4A
Wiring Warnings
ç
Use National Electric
(NEC) or other country-
specific 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 flammable
substances.
Output 2, 4 Switched DC
Output 2: (-W2, +Y2)
PM _ _ _ _ [C] - _ _ _ _ _ _ _
Output 4: (-W4, +Y4) PM _ _ _ _ _ - _ _ _ [C] _ _ _
dc+
dc-
W_
Y_
Slot A, B
• Maximum open circuit voltage 22 to 25V
Î
(dc)
• 30mA max. per single output / 40mA max. total per paired outputs (1 & 2,
3 & 4)
• Typical drive; 4.5V
Î
(dc) @ 30mA
• Short circuit limited to <50mA
• NPN transistor sink
• Use dc- and dc+ to drive external solid-state relay
• 1-pole DIN-A-MITE: up to 4 in parallel or 4 in series
• 2-pole DIN-A-MITE: up to 2 in parallel or 2 in series
• 3-pole DIN-A-MITE: up to 2 in series
Output 2, 4 NO-ARC Relay, Form A
Output 2: (L2, K2) PM _ _ _ _ [H] - _ _ _ _ _ _ _
Output 4: (L4, K4) PM [4, 8, 9] _ _ _ _ - _ _ _ [H] _ _ _
common
normally open
L_
K_
Slot A, B
• 12A at 85 to 264V
Å
(ac) resis-
tive load only
• 2,000,000 cycle rating for NO-
ARC circuit
• 100mA minimum load
• 2mA maximum off state leak-
age
• Do not use on dc loads
• Output does not supply power
L_
K_
