YOKOGAWA UT35A-L, User Manual

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15-1
IM 05P04D41-01EN
Power Failure Recovery Processing / Setting Power Frequency / Other Settings
15
15.1 Remedies if Power Failure Occurs during
Operations
Description
All functions of the controller cannot be operated for about 10 seconds after recovery.
However, the case of instantaneous power failure is excepted.
• 100–240 V AC: Instantaneous power failure of 20 ms or less
• 24 V AC/DC: Instantaneous power failure of 1 ms
A power failure is not detected. Normal operation continues.
The following shows effects caused in “settings” and “operation status.”
Alarm action
Does not continue. Alarm with stand-by function will enter stand-by status.
Alarm latch will be initialized.
Setting parameter Set contents of each parameter are retained.
Setting Details
Parameter
symbol
Name
Display
level
Setting range Menu symbol
R.MD Restart mode EASY
0: Limit output relay is de-
energized at power on.
1: Limit output relay is energized
at power on.
SYS
Chapter 15 Power Failure Recovery Processing / Power Frequency Setting / Other Settings