Watlow Electric Integrated Controller User Manual Rev C EZ-ZONE PM - Manual (Page 23)

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 1 • 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 4 Solid-state Relay, Form A
common
normally open
L3
K3
J3
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
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.