YOKOGAWA UT55A - Errors at Power on

16-3
IM 05P01C31-01EN
Troubleshooting,Maintenance,andInspections
16
Errors at Power On (Input/output Action)
Error
description
PVinput,
RSP input,
and aux.
analog input
Ladder
calculation
Control
computa-
tion
Control
output
Retrans-
mission
output
Alarm
action
Analog out-
put(control
output, re-
transmission
output)
Voltagepulse
output(con-
troloutput)
Relay output
(controlout-
put, position
proportional
output)
Feedback
input(for
Position
proportional
type)
Contact
input
Contact
(alarm)
output
Communi-
cation
Faulty MCU
RAM
Faulty MCU
ROM
Undened Stopped Stopped Undened Undened Stopped 0%orless OFF
OFF Undened OFF OFF Stopped
System data
error
Undened Stopped Stopped Undened Undened Stopped 0%orless OFF
OFF Undened OFF OFF
Normal
action
User
(parameter)
default value
error
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
Setup
parameter error
Operation
parameter error
Control
parameter error
Non responding
hardware
of extended
function (E1
to E4-terminal
areas)
Undened Normal action
Normal
action
Normal
action
Normal
action
Normal
action
Normal action Normal action Normal action Normal action
Normal
action
Normal
action
Normal
action
Calibration
value error
Normal
action (out of
accuracy)
Normal action
Normal
action
Normal
action
Normal
action
Normal
action
Normal
action (out of
accuracy)
Normal action Normal action Normal action
Normal
action
Normal
action
Normal
action
Faulty FRAM Normal action Normal action
Corrupted
ladder program
Normal action
Normal action
(without
ladder
program)
Normal
action
Normal
action
Normal
action
Normal
action
Normal action Normal action Normal action Normal action
Normal
action
Normal
action
Normal
action
User
prole
error
Normal action Normal action
Normal
action
Normal
action
Normal
action
Normal
action
Normal action
Normal action Normal action Normal action
Normal
action
Normal
action
PROFIBUS-DP/
DeviceNet/CC-Link
communication is
disabled
16.1Troubleshooting