Chapter 10 Output (Control And Retransmission) Functions; Setting Control Output Type - YOKOGAWA UT Advanced UT32A User Manual

Chapter 10 Output (Control and Retransmission) Functions

10.1 Setting Control Output Type

Description
Time Proportional Relay Output / Triac Output / Time Proportional Voltage
Pulse Output
Current Output
ON/OFF Output
IM 05P01D31-01EN
In time proportional output, the control computation result is output in the form of an
on/off signal pulse width proportional to the time. The pulse width is calculated as follows
with the cycle time (control output cycle) at 100%.
Control output pulse width = Control output (%) x Cycle time
The output type is selected as either the relay/triac output or the voltage pulse output.
PV
UT35A/UT32A
TC
ON/OFF signal
Heater
pulse output
Tank
SSR
► Cycle time: 10.2 Setting Control Output Cycle Time
In current output, the control computation result is output as a current signal. (Example of
4 to 20 mA)
PV
TC
UT35A/UT32A
Heater
Control output
Furnace
Thyristor unit
ON/OFF control compares the SP and PV and outputs an on or off signal according to
the positive or negative deviation (PV – SP).
100
Ristricted to the range
between output high
limit and output low
limit values.
ON
OFF
0
0.0 50.0 100.0
Displayed output value (%)
20 mA
Ristricted to the range
between output high
limit and output low
limit values.
4 mA
0.0
Displayed output value (%)
ON
OFF
100.0
10-1
10