YOKOGAWA UP35A, User Manual

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10-5
IM 05P02D41-01EN
Output (Control and Retransmission) Functions
10
10.2 Setting Control Output Cycle Time
Description
Cycle time is the basic cycle period for a signal full cycle of ON/OFF operation for a
relay/triac or voltage pulse output. Reducing cycle time results in faster cycling and finer
control. In contrast, reducing the ON/OFF period also reduces relay life. For relay output,
set the control output cycle time to 30 to 200 seconds according to the process speed.
ON
ON ON ON
On time On time
ON
OFF OFF
OFF OFF OFF
Cycle time Cycle time
Comparison of operations for the same control output (50%)
Cycle time = 10 sec
5 sec
10 sec 20 sec
Cycle time = 20 sec Cycle time = 40 sec
Setting Details
Parameter
symbol
Name
Display
level
Setting range Menu symbol
CT
Control output cycle
time
Heating-side control
output cycle time
(in Heating/cooling
control)
EASY
0.5 to 1000.0 s OUT
CTc
Cooling-side control
output cycle time
EASY