YOKOGAWA YS1000 Series User Manual

18
IM 01B08B02-01EN
Monitoring and Control of Regular Operations (Operation Display)
Table 5.4 Alarm Display and Control Status Display in the YS1700 Programmable Mode
Control Module
Display Item
Basic Control
(BSC1)
Cascade Control
(CSC)
Selector Control
(SSC)
DUAL-loop
Control (BSC1,
BSC2)
Alarm generation display (Note 1)
SYS-ALM
STC-ALM
ALARM-1
SYS-ALM
STC-ALM
ALARM-1
ALARM-2
SYS-ALM
STC-ALM
ALARM-1
ALARM-2
SYS-ALM
STC-ALM
ALARM-1
ALARM-2
Control status display (Note 2)
CAS
SPC, DDC
BUA, BUM
CAS
SPC, DDC
BUA, BUM
CAS
SPC, DDC
BUA, BUM
CAS
SPC, DDC
BUA, BUM
Control substatus display 1
None None None None
Control substatus display 2
None
OPEN, CLOSE
SV2-RMT
SV2-LCL
SEL1, SEL2
SEL-EXT
None
Control substatus display 3
STC-ON
STC-DSP
ATSTUP
STC-ON
STC-DSP
ATSTUP
STC-ON
STC-DSP
STC-ON
STC-DSP
ATSTUP
Note 1: This display appears only if an alarm occurs. If multiple alarms occur simultaneously, they are indicated in multiple lines.
Note 2: Only when the operation mode is in cascade setting automatic control (C mode) is a control status displayed, while nothing is indicated in
automatic control (A mode) or manual control (M mode).
Table 5.5 Meaning of Display Abbreviations
Symbol Meaning Symbol Meaning
SYS-ALM
A system alarm occurred.
SV TRK
SV being tracked
STC-ALM
An STC alarm occurred.
PV TRK
PV being tracked
ALARM-1
A loop 1 process alarm occurred.
OPEN
(Internal) cascade open
ALARM-2
A loop 2 process alarm occurred.
CLOSE
(Internal) cascade closed
CAS
Remote operation being conducted in response to
external setpoint input
SV2-RMT
Loop 2’s SV2 remote setting
SPC
Remote operation being conducted in response to
SV from a high-level device
SV2-LCL
Loop 2’s SV2 local setting
DDC
Remote operation being conducted in response to
MV from a high-level device
SEL1
Loop 1 side’s selection status
BUA
Transition to backup auto status
SEL2
Loop 2 side’s selection status
BUM
Transition to backup manual status
SEL-EXT
External signal selection status
EXT-MAN
Transition to manual control in response to external
digital input
STC-ON
STC control operation being conducted
EXT-AUT
Transition to automatic control in response to
external digital input
STC-DSP
PID setting target value is indicated by STC.
EXT-PMV
Preset MV being output in response to external
digital input
ATSTUP
STC auto startup being conducted
EXT-TRK
Output being tracked in response to external digital
input
► Forcausesofalarmsthathaveoccurredandactionstobetaken:see“Troubleshooting”inthismanual.

YOKOGAWA YS1000 Series Specifications

General

Brand	YOKOGAWA
Model	YS1000 Series
Category	Controller
Language	English