User`s guide

Watlow EZ-ZONE
®
PM PID Controller • 15 • Chapter 2 Install and Wire
Digital Inputs & Outputs
5-6
Switched DC, Open Collector,
Process outputs
Analog Input 1
Communications Ports
Controller
Low Voltage Power Bus
Mechanical Relay,
Solid-State Relay,
NO-ARC Relay
Outputs
Low-voltage Isolation: 42V peak
Safety Isolation: 2300VÅ (ac)
Safety Isolation
No Isolation
No Isolation
No Isolation
Low-voltage
Isolation
Controller Power Supply
12 to 40VÎ (dc)
20 to 28VÅ (ac)
100 to 240VÅ (ac)
Safety Isolation
Safety Isolation
Note:
Analog Input 1 can be optionally ordered as
an isolated input (see ordering information
in the back of this User’s Guide).
EZ-ZONE PM Isolation Blocks
C
Dig I/O 5 & 6
485 Comms
Power
E
A
Output 2
Output 1
Input 1
B
D
Back View
Slot Orientation 1/8
DIN Vertical PM8
A
Output 2
Output 1
Input 1
B
D
E
C
Dig I/O 5 &
6
485 Comms
Power
Back View
Slot Orientation
1/8 DIN Horizontal PM9
A
Output 2
Output 1
Input 1
B
Output 3
Output 4
Input 2
D
Digital I/O 7 - 12
E
Communications Card
C
Dig I/O 5 & 6
485 Comms
Power
Back View
Slot Orientation
1/4 DIN Horizontal PM4