Watlow PM LEGACY PM3 - Page 24

Watlow PM LEGACY™ Limit Controller • 24 • 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 3 Universal Process
v
olts or current -
current +
volts +
F3
G3
H3
Slot B
• 0 to 20mA into 800 Ω
maximum load
• 0 to 10V (dc) into 1
kΩ minimum load
• Scalable
• Output supplies power
• Cannot use voltage and
current outputs at same
time
• Output may be used as
retransmit or control.
Output 3:
PM6[L,M] _ _J - _ A [F] _
G_ _
negative
volts +
current +
4 to 20 mA
0 to 10 V
F
3
G
3
H3