Watlow Ez-Zone PM8 - Communication Network Setup

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Warning:
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 elec-
trical sensors or peripheral
devices. Failure to do so may
result in damage to equip-
ment and property, and/or
injury or loss of life.
Note:
Maximum wire size termina-
tion and torque rating:
• 0.0507 to 3.30 mm
2
(30 to
12 AWG) single-wire termi-
nation or two 1.31 mm
2
(16
AWG)
• 0.8 Nm (7.0 lb.-in.) torque
Note:
Adjacent terminals may be
labeled differently, depend-
ing on the model number.
Note:
To prevent damage to the
controller, do not connect
wires to unused terminals.
Note:
Maintain electrical isolation
between analog input 1, digi-
tal input-outputs, switched
dc/open collector outputs and
process outputs to prevent
ground loops.
Note:
The control output common
terminal and the digital com-
mon terminal are referenced
to different voltages and
must remain isolated.
Watlow EZ-ZONE
®
PM PID Controller • 18 • Chapter 2 Install and Wire
Quencharc Note:
Switching pilot duty inductive
loads (relay coils, solenoids,
etc.) with the mechanical
relay, solid state relay or
open collector output options
requires use of an R.C. sup-
pressor.
Output 1 Universal Process
Universal Process
(Output 1)
volts or current -
current +
volts +
F1
G1
H1
L2
K2
T1
S1
R1
Slot A
• 0to20mAinto800Ωmaxi-
mum load
• 0to10VÎ (dc) into voltage 1
kΩ minimum load
• scalable
• outputsuppliespower
• cannotusevoltageandcurrent
outputs at same time
• Outputmaybeusedasre-
transmit or control.
PM _ _ _ [F] _-_ AAAA _ _
negative
volts +
current +
F
_
G
_
H
_
4 to 20 mA
0 to 1 0 V
Output 1 Solid-State Relay, Form A
normally open
common
L1
K1
Slot A
• 0.5Aat20to264VÅ (ac) maxi-
mum resistive load
•20VA120/240VÅ (ac) pilot duty
•opto-isolated,withoutcontact
suppression
• maximumoffstateleakageof
105 microamperes
• outputdoesnotsupplypower
• Donotuseondcloads.
• SeeQuencharcnote.
PM _ _ _ [K] _-_ AAAA _ _
L
_
K
_
1.1
0
-20
50
40
30
20100
-10
60 70
Amps RMS
Ambient Temperatue (
o
C)
0.1
1
0.2
0.9
0.3
0.4
0.5
0.6
0.7
0.8
1 Amp SSR Derating Curve
Safe Operating Area
Output 2 Switched DC
dc+
dc-
W2
Y2
Slot A
• 10mAdcmaximumsupplycur-
rent
• shortcircuitlimitedto<50mA
• 22to32VÎ (dc) open circuit volt-
age
• usedc-anddc+todriveexternal
solid-state relay
• DIN-A-MITEcompatible
• single-pole:upto2inseries,
none in parallel
PM _ _ _ _ [C]-_ AAAA _ _
dc +
dc -
common
Y
_
W
_
24V