Watlow Ez-Zone PM8 - Page 16

Watlow EZ-ZONE
®
PM PID Controller • 13 • Chapter 2 Install and Wire
Digital Inputs & Outputs
5-6
Switched DC, Open Collector,
Process outputs
Analog Input 1
Communications Ports
Low Voltage Power Bus
& Internal 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)
10 0 to 240VÅ (ac)
Safety Isolation
Safety Isolation
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
C
Dig I/O 5 & 6
485 Comms
Power
Back View
Slot Orientation
1/4 DIN Horizontal PM4