Watlow Electric Integrated Controller User Manual Rev C EZ-ZONE PM - Manual (Page 19)

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 • 1 7 • C h a p t e r 2 I n s t a l l a n d W i r e
Ó
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.
Output 1 Switched DC/Open Collector
dc - (open collector)
dc +
common
X1
W1
Y1
L2
K2
T1
S1
R1
Slot A
Switched DC
• 30 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 4 in parallel
or 4 in series
• 2-pole: up to 2 in parallel or 2
in series
• 3-pole: up to 2 in series
Open Collector
• 100 mA maximum output cur-
rent sink
• 30V Î (dc) maximum supply
voltage
• Any switched dc output can
use the common terminal.
• Use an external power supply
to control a dc load, with the
load positive to the positive
of the power supply, the load
negative to the open collector
and common to the power sup-
ply negative.
See Quencharc note.
PM6 _ _ C _-_ _ _ _ A _ _
Internal
Circuitry
dc-
dc+
Load
Switched DC
-
+
W1
Y1
Power
Supply
- +
Internal
Circuitry
dc-
common
dc+
Open
Collector
W1
X1
Load
-
+
Output 1 Mechanical Relay, Form C
normally open
normally closed
common
L1
K1
J1
L2
K2
T1
S1
R1
Slot A
• 5 A at 240V Å (ac) or 30VÎ (dc)
maximum resistive load
• 20 mA 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 _ _ E _-_ _ _ _ A _ _
Internal
Circuitry
common
normally
open
Mechanical
Relay
L1
K1
normally
closed
J1
Output 1 Universal Process
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 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 re-
transmit or control.
PM6 _ _ F _-_ _ _ _ A _ _
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.
Note: If output 1 is a universal process output, output 2 cannot function as a variable-time-base output.