Watlow Electric Integrated Controller User Manual Rev C EZ-ZONE PM - Manual (Page 22)

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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 mm2 (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.
Wa t l o w E Z - Z O N E ® P M I n t e g r a t e d C o n t r o l l e r • 2 0 • C h a p t e r 2 I n s t a l l a n d W i r e
Output 3 Universal Process
volts or current -
current +
volts +
F3
G3
H3
L4
K4
T2
S2
R2
Slot B
• 0 to 20 mA into 800 Ω maxi-
mum load
• 0 to 10V Î (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 retrans-
mit or control.
PM6 _ _ _ _-_ _ F _ A _ _
Note: If output 3 is a universal process
output, output 4 cannot function as a
variable-time-base output.
Output 3 Solid-state Relay, Form A
normally open
common
L3
K3
L4
K4
T2
S2
R2
Slot B
• 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.
PM6 _ _ _ _ -_ _ K _ A _ _
Internal Circuitry
common
normally
open
Solid-state Relay
L3
K3
Output 4 Switched DC
dc+
dc-
L3
K3
J3
W4
Y4
T2
S2
R2
Slot B
• 10 mA DC maximum supply
current
• short circuit limited to <50 mA
• 22 to 32V
Î (dc) open circuit
voltage
• Use dc- and dc+ to drive exter-
nal solid-state relay.
• DIN-A-MITE compatible
• single-pole: up to 2 in series,
none in parallel
PM6 _ _ _ _-_ _ _ C A _ _
Internal
Circuitry
dc-
dc+
Load
Switched DC
-
+
W4
Y4
Output 4 Mechanical Relay, Form A
common
normally open
L3
K3
J3
L4
K4
T2
S2
R2
Slot B
• 5 A at 240V Å (ac) or 30VÎ (dc)
maximum resistive load
• 20 mV at 24V minimum load
• 125 VA pilot duty at 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.
PM6 _ _ _ _-_ _ _ J A _ _
Internal
Circuitry
common
normally
open
Mechanical
Relay
L4
K4
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.