Watlow EZ-ZONE PM - Manual (Page 21)

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: 2300V Å (ac)
Safety Isolation
No Isolation
No Isolation
No Isolation
Low-voltage
Isolation
Controller Power Supply
12 to 40V Î ( dc)
20 to 28V Å (ac)
100 to 240V Å (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).