Watlow EZ-ZONE
®
PM PID Controller
•
19
•
Chapter 2 Install and Wire
Óç
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 mm2 (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 .
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 2 NO-ARC Relay, Form A
common
normally open
L2
K2
Slot A
• 15 A at 85 to 264V
Å
(ac) resis-
tive load only
• 1/16 DIN models only
• 2,000,000 cycle rating for NO-
ARC circuit
• 100 mA minimum load
• 2 mA maximum off state leakage
• Do not use on dc loads.
• Output does not supply power.
PM
[4, 6, 8, 9]
_ _ _
[H]
-_ AAAA
_ _
L_
K_
Output 2 Mechanical Relay, Form A
common
normally open
L2
K2
Slot A
• 5 A at 240V
Å
(ac) or 30V
Î
(dc)
maximum resistive load
• 20 mV at 24V minimum load
• 125 VA pilot duty @ 120/240V
Å
(ac), 25 VA at 24V
Å
(ac)
• 100,000 cycles at rated load
• Output does not supply power.
• for use with ac or dc
See Quencharc note.
PM _ _ _ _
[J]
-_ AAAA _ _
L_
K_
Output 2 Solid-state Relay, Form A
Solid-state Relay
(Ouput 2)
common
normally open
L1
K1
J1
L2
K2
T1
S1
R1
Slot A
• 0.5 A at 20 to 264V
Å
(ac) maxi-
mum resistive load
• 20 VA 120/240V
Å
(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
20
10
0
-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
Saf
e Operating Area
