YOKOGAWA UP35A, User Manual

Page: 304 / 412

16-5
IM 05P02D41-01EN
Troubleshooting, Maintenance, and Inspections
16
Errors during Operation (Input/output Action)
Error
description
PV input
Ladder
calcula-
tion
Control
compu-
tation
Control
output
Retrans-
mission
output
Alarm
action
Analog out-
put (control
output,
retransmis-
sion output)
Voltage
pulse output
(control
output)
Relay output
(control out-
put, position
proportional
output)
Feedback
input
(for Position
proportional
type)
Contact
input
Contact
(alarm)
output
Com-
munica-
tion
Analog input terminal ADC error
• PV input
105%
Normal
action
Normal
action
When in
AUTO
and RUN
modes:
Error
preset
output
When
in MAN
mode:
MAN
output
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Universal input terminal RJC
error
• PV input
Normal action
(without reference
junction compensation)
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Analog input terminal burnout
error
• PV input
Depends on the
parameter BSL.
Upscale: 105%
Downscale: -5%
Normal
action
Normal
action
When in
AUTO
and RUN
modes:
Error
preset
output
When
in MAN
mode:
MAN
output
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
PV input burnout error
Depends on the setting
of the parameter BSL.
Upscale: 105%
Downscale: -5%
PV input over-scale
PV input under-scale
(PV values out of -5 to 105%)
Normal action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action
16.1 T
roubleshooting