
Watlow EZ-ZONE
®
PM Limit Controller • 18 • Chapter 2 Install and Wire
EZ-ZONE
PM Isolation Blocks.
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
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).
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