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Watlow EZ-ZONE
®
RMC Module
•
207
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Chapter 7 Features
Source A (Run)
[Sr;A]
Source Active State A
[SAS;A]
: High
Source Value A [
uS;A]
Source A (Run)
[Sr;A]
Source Active State A
[SAS;A]
: Low
Source Value A [
uS;A]
Active Level
[Leu]
: [High]
Output Value
[o;u]
Active Level [Leu]
: Hig
h
Output Value [o;u]
Active Level
[Leu]
: Low
Output Value
[o;u]
Active Level
[Leu]
: Low
Output Value
[o;u]
Elapsed Time
[E;t]
Elapsed Time
[E;t]
Time
Time
Time
Time
Timing Diagram of On Pulse with active state falling edge
0
0
0
0
Time
[ti]
Time
[ti]
off
off
off
off
low
low
high
high
on
on
on
on
Timing Diagram of On Pulse with active state rising edge
Timer
On Pulse
Function
Source
Active State
A
Source
Active State B
Source Function A
Source Instance A
Source Zone A
Source Error A
Source Function B
Source Instance B
Source Zone B
Source Error B
Time
Active Level
Output Value
Error
Source Value A
Source Value B
Elapsed Time
An On Pulse Timer is used to produce an output pulse of a constant
duration. It can be used as a minimum on time for compressor control
or other devices that do not want excessive cycling.