Owner manual

Watlow EZ-ZONE
®
PM Integrated Controller • 36 • Chapter 2 Install and Wire
Warning: Óç
Use National Electric (NEC) or other
country-specific standard wiring and
safety practices when wiring and
connecting this controller to a power
source and to electrical sensors or
peripheral devices. Failure to do so
may result in damage to equipment
and property, and/or injury or loss
of life.
Note:
Maximum wire size termination and
torque rating:
• 0.0507 to 3.30 mm
2
(30 to 12
AWG) single-wire termination or
two 1.31 mm
2
(16 AWG)
• 0.8 Nm (7.0 lb.-in.) torque
Note:
Adjacent terminals may be labeled
differently, depending on the model
number.
Note:
To prevent damage to the control-
ler, do not connect wires to unused
terminals.
Note:
Maintain electrical isolation between
analog input 1, digital input-outputs,
switched dc/open collector outputs
and process outputs to prevent
ground loops.
Note:
The control output common termi-
nal and the digital common terminal
are referenced to different voltages
and must remain isolated.
Note:
This Equipment is suitable for use in
CLASS I, DIVISION 2, Groups A, B,
C and D or Non-Hazardous locations
only. Temperature Code T4A
Warning:
ç
Explosion Hazard - Dry contact clo-
sure Digital Inputs shall not be used
in Class I Division 2 Hazardous Loca-
tions unless switch used is approved
for this application.
Warning:
ç
Explosion Hazard – Substitution of
component may impair suitability
for CLASS I, DIVISION 2.
Warning:
ç
Explosion Hazard - Do not discon-
nect while the circuit is live or
unless the area is known to be free
of ignitable concentrations of flam-
mable substances.
Note:
When using Modbus TCP, the Network Status and Module Status LEDs are
not used.
Network Status
Indicator State Summary Requirement
Steady Off
Not powered,
no IP address
If the device does not have an IP address (or is
powered off), the network status indicator shall
be steady off.
Flashing Green No connections
If the device has no established connections, but
has obtained an IP address, the network status
indicator shall be flashing green.
Steady Green Connected
If the device has at least one established connec-
tion (even to the Message Router), the network
status indicator shall be steady green.
Flashing Red
Connection
timeout
If one or more of the connections in which this
device is the target has timed out, the network
status indicator shall be flashing red. This shall
be left only if all timed out connections are rees-
tablished or if the device is reset.
Steady Red Duplicate IP
If the device has detected that its IP address is
already in use, the network status indicator shall
be steady red.
Flashing Green /
Red
Self-test
While the device is performing its power up test-
ing, the network status indicator shall be flash-
ing green / red.
Module Status
Indicator State Summary Requirement
Steady Off No power
If no power is supplied to the device, the mod-
ule status indicator shall be steady off.
Steady Green
Device
operational
If the device is operating correctly, the module
status indicator shall be steady green.
Flashing Green Standby
If the device has not been configured, the
module status indicator shall be flashing
green.
Flashing Red Minor fault
If the device has detected a recoverable minor
fault, the module status indicator shall be
flashing red.
NOTE: An incorrect or inconsistent configura-
tion would be considered a minor fault.
Network Status
Module Status
Activity Status
Link Status