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
peripheral 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 termi-
nal 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 - Dry contact clo-
sure Digital Inputs shall not be used
in Class I Division 2 Hazardous Loca-
tions unless switch used is approved
for this application.
Warning:
ç
Explosion Hazard – Substitution of
component may impair suitability
for CLASS I, DIVISION 2.
Warning:
ç
Explosion Hazard - Do not discon-
nect while the circuit is live or
unless the area is known to be free
of ignitable concentrations of flam
-
mable substances.
Low Power
Power
power
power
98
99
CF
CD
CE
B5
D6
D5
Slot C
fuse
• Minimum/Maximum Ratings
• 12 to 40V
Î
(dc)
• 20 to 28V
Å
(ac) Semi Sig F47
• 47 to 63 Hz
• 14VA maximum power consumption (PM4, 8 and 9)
• 10VA maximum power consumption (PM6)
PM_ _
[3,4]
_ _ - _ _ _ _ _ _ _
High Power
Power
power
power
98
99
CF
CD
CE
B5
D6
D5
Slot C
fuse
• Minimum/Maximum Ratings
• 85 to 264V
Å
(ac)
• 100 to 240V
Å
(ac) Semi Sig F47
• 47 to 63 Hz
• 14VA maximum power consumption (PM4, 8 and 9)
• 10VA maximum power consumption (PM6)
PM_ _ [
1,2]
_ _ - _ _ _ _ _ _ _
Digital Input 5 - 6
Digital Input
• Update rate 10 Hz
• Dry contact or dc voltage
DC Voltage
• Input not to exceed 36V at 3 mA
• Input active when > 3V @ 0.25 mA
• Input inactive when < 2V
Dry Contact
• Input inactive when > 500 Ω
• Input active when < 100 Ω
• maximum short circuit 13 mA
PM _ _
[2,4]
_ _-_ _ _ _ _ _ _
Voltage Input
common
Vdc
D
_
B
_
Dry Contact
common
24 Vdc
B
_
_
D
98
99
CF
CD
CE
B5
D6
D5
Slot C
DC Input
common
DC Input