Watlow ez-zone pm - Installation and Wiring Procedures

Watlow EZ-ZONE
®
PM Integrated Controller • 25 • Chapter 2 Install and Wire
Warning:
Óç
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 electrical sensors or pe-
ripheral devices. Failure to do so may
result in damage to equipment and
property, and/or injury or loss of life.
Note:
Maximum wire size termination and
torque rating:
• 0.0507 to 3.30 mm
2
(30 to 12 AWG)
single-wire termination or two 1.31
mm
2
(16 AWG)
• 0.8 Nm (7.0 lb.-in.) torque
Note:
Adjacent terminals may be labeled
differently, depending on the model
number.
Note:
To prevent damage to the control-
ler, do not connect wires to unused
terminals.
Note:
Maintain electrical isolation between
analog input 1, digital input-outputs,
switched dc/open collector outputs
and process outputs to prevent ground
loops.
Note:
The control output common terminal
and the digital common terminal are
referenced to different voltages and
must remain isolated.
Note:
This Equipment is suitable for use in
CLASS I, DIVISION 2, Groups A, B,
C and D or Non-Hazardous locations
only. Temperature Code T4A
Warning:
ç
Explosion Hazard – Substitution of
component may impair suitability for
CLASS I, DIVISION 2.
Warning:
ç
Explosion Hazard - Do not disconnect
while the circuit is live or unless the
area is known to be free of ignitable
concentrations of flammable sub-
stances.
Digital Output 5 - 6
Digital Output
• Updaterate10Hz
• Outputvoltage24V
• Currentlimit,Output5,24mA
maximum
• Currentlimit,Output6,10mA
maximum driving single pole
DIN-A-MITE
• Capableofdrivinga3-pole
DIN-A-MITE
• Open-circuitvoltage22to
32VÎ (dc)
PM _ _ [2,4] _ _-_ _ _ _ _ _ _
Digital Output 7 - 12
B
24 Vdc
common
D
_
_
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.
common
collector out
collector out
98
99
CF
CD
CE
B5
D6
D5
Slot C
Common
Collector out
Collector out
B7
D7
D8
D9
D10
D11
D12
Z7
Slot E
Collector out
Collector out
Collector out
Collector out
Supply
•Internalsupplyprovidesa
constant power output of
750mW
• Maximumoutputsink
current per output is 1.5A
(external class 2 or SELV
supply required)
• Totalsinkcurrentforall
outputs not to exceed 8A
•Donotconnectoutputsin
parallel
PM [4,6,8] _ _ _ _- [C,D] _ _
_ _ _ _
Open Collector Outputs
Internal Circuitry
Z7 supply
D9
D10
D11
D12
D8
D7
B7 common