Watlow PM PLUS™ 6
• 33 •
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.
DeviceNet Network Status LED Indicator
(LED closest to
the front of the device)
Indicator LED
Description
Off
The device is not online and has not completed the
duplicate MAC ID test yet. The device may not be
powered.
Green
The device is online and has connections in the estab-
lished state (allocated to a Master).
Red
Failed communication device. The device has detected
an error that has rendered it incapable of communi-
cating on the network (duplicate MAC ID or Bus-off).
Flashing Green
The device is online, but no connection has been al-
located or an explicit connection has timed out.
Flashing Red
A poll connection has timed out.
DeviceNet Module Status LED Indicator
(Located next to the
Network Status LED)
Indicator
LED
Description
Off
No power is applied to the device.
Flashing Green-
Red
The device is performing a self-test.
Flashing Red
Major Recoverable Fault.
Red
Major Unrecoverable Fault.
Green
The device is operating normally.
J1939 CAN bus Communications (Instance 2)
Slot B (PM [6] _ _ _ _ _ - [7] _ _ _ _ _ _ )
Shield
CAN_L
CL
CH
SH
V+
V-
Slot B, E
Volts +
CAN_H
Volts -
Terminal
Signal
Function
CL
CAN_L
negative side of CAN bus
CH
CAN_H
positive side of CAN bus
SH
shield
shield interconnect
V+
V+
CAN bus power
V-
V-
CAN bus power return
J1939 LED Indicators
Viewing the control from the rear top, two LEDs are aligned vertically
front to back. The LED closest to the front is identified as CAN 2 (channel
2, currently not used) and the one closet to the connector is identified as
CAN 1 (channel 1).
CAN 1 Indicator
LED
Description
Off
CAN communications with J1939 Card inac-
tive.
Flashing Red
New CAN frame transmission occurred.
Flashing Green
CAN communications active with J1939 Card.
Network
Status
(NS)
Module
Status
(MS)
