Watlow PM PLUS™ 6
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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.
Network Status Indicator (LED closest to the front)
Indicator
State
Summary
Requirement
Steady Off
Not powered,
no IP address
The device does not have an IP ad-
dress (or is powered off).
Flashing Green No connections The device has no established connec-
tions, but has obtained an IP address.
Steady Green
Connected
The device has at least one established
connection (even to the Message
Router).
Flashing Red
Connection
timeout
One or more connections in which this
device is the target timed out. This
clears only if all timed out connections
are reestablished or if the device is
reset.
Steady Red
Duplicate IP
The device detects that its IP address
is already in use.
Flashing Green
/ Red
Self-test
The device is performing its power up
testing,
Module Status Indicator (2nd from the front)
Indicator
State
Summary
Requirement
Steady Off
No power
No power is supplied to the device.
Steady Green
Operational
The device is operating correctly.
Flashing Green
Standby
If the device has not been configured,
this LED flashes green.
Flashing Red
Minor fault
The device detects a recoverable minor
fault. NOTE: An incorrect or incon-
sistent configuration is considered a
minor fault.
Steady Red
Major fault
The device detects a non-recoverable
major fault.
Flashing Green
/ Red
Self-test
While the device is performing power
up testing.
Activity Status Indicator (3rd from front)
Indicator
State
Summary
Requirement
Flashing Green Detects activity
MAC detects activity
Red
- - - -
MAC detects a collision.
Link Status Indicator (Last LED, near rear of the device)
Indicator
State
Summary
Requirement
Steady Off
Not powered,
unknown link
speed
Device cannot determine link speed or
power is off.
Green
- - - -
Cable is wired and connected cor-
rectly.
Note:
When changing the fixed IP address cycle module power
for new address to take effect.
Ethernet LED Indicators
Viewing the control from the front and then looking on top four
LEDs can be seen aligned vertically front to back. The LEDs are
identified accordingly: closest to the front reflects the Network
(Net) Status, Module (Mod) Status is next, Activity status follows
and lastly, the LED closest to the rear of the control reflects the
Link status.
Note:
When using Modbus TCP, the Network Status and
Module Status LEDs are not used.
EtherNet/IP™, PCCC, and Modbus
®
TCP Communications
(Instance 2) continued
