Instruction Manual

Watlow EZ-ZONE
®
PM Limit Controller • 29 • 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 be-
tween Analog Input 1, Digital I/O,
Switched dc/open collector outputs
and Process outputs to prevent
ground loops.
Note:
The control output common
terminal and the digital common
terminal are referenced to different
voltages and must remain isolated.
Activity Status
Indicator State Summary Requirement
Flashing Green Detectsactivity
IftheMACdetectsactivity,theLEDwillbe
flashing green.
Red - - - -
IftheMACdetectsacollision,theLEDwillbe
red.
DeviceNet™ Communications
CAN_L
V-
V+
CH
SH
CL
V-
T2
S2
R2
Slot B or E
V+
CAN_H
shield
Terminal Signal Function
V+ V+ DeviceNet™power
CH CAN_H positivesideofDevi-
ceNet™bus
SH shield shield interconnect
CL CAN_L negativesideofDevi-
ceNet™bus
V- V- DeviceNet™powerre-
turn
PM [4, 6, 8, 9] _ _ _ _ - [5] _ _ _ _ _ _
DeviceNet LED Indicators
ViewingthecontrolfromthefrontandthenlookingontoptwoLEDscanbe
seenalignedverticallyfronttoback.TheLEDclosesttothefrontisidentified
asthenetwork(Net)LEDwheretheonenexttoitwouldbeidentifiedasthe
module(Mod)LED.
Network Status
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 established state (allcated
to a Master).
Red
Failed communication device. The device has detected an error that has
rendereditincapableofcommunicatingonthenetwork(duplicateMACID
or Bus-off).
Flashing Green
The device is online, but no connection has been allocated or an explicit
connection has timed out.
Flashing Red A poll connection has timed out.
Module Status
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.