Watlow PM LEGACY PM3 - Page 25

Watlow PM LEGACY™ Limit Controller • 25 • Chapter 2 Install and Wire
Warning:
ç
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)
• 0.56 Nm (5.0 in-lb.) torque
Note:
Adjacent terminals may be
labeled differently, depending
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, dig-
ital input-outputs, switched
dc/open collector outputs
and process outputs to pre-
vent ground loops.
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 4 Switched DC
dc+
dc-
L3
K3
J3
W4
Y4
T2
S2
R2
Slot B
• Maximum open circuit
voltage is 22 to 25V
(dc)
• 30mA max. per single
output / 40mA max.
total per paired out-
puts (1 & 2, 3 & 4)
• Typical drive; 4.5V
(dc) @ 30mA
• Short circuit limited to
<50mA
• NPN transistor sink
• Use dc- and dc+ to
drive external sol-
id-state relay
• 1-pole DIN-A-MITE: up
to 4 in parallel or 4 in
series
• 2-pole DIN-A-MITE: up
to 2 in parallel or 2 in
series
• 3-pole DIN-A-MITE: up
to 2 in series
Output 4:
PM6[L,M] _ _J - _ A _ [C]
G_ _
common
24V
X
_
dc +
dc -
W
_
Y
_