Taie FY400, Operation Manual, Page: 60 / 89

59 FY operation manual
12.1 Alarm Mode
：
SV
：
Alarm set value X
：
1 / 2 / 3 (There are up to 3 sets of alarms)
ALD X
Alarm mode Description
0 No alarm function Not drive any alarm relays and the corresponding LED lamp.
1
Deviation high
(With hold action)
ON
ALX
OFF
SV
HYSX
Formula
PV
≥
(SV+ALX
) → Alarm ON
PV
≤
(SV+ALX-HYSA
) → Alarm OFF
2
Deviation low
(With hold action)
ON
ALX
OFF
SV
HYSX
*
ALX must to be set to a negative value
Formula
PV
≤
(SV+ALX
) → Alarm ON
PV
≥
(SV+ALX+HYSA
) → Alarm OFF
3
Deviation high/low
(With hold action)
ON
ALX
HYSX
SV
OFF
ON
ALX
HYSX
Formula
PV
≥
(SV+ALX
) → Alarm ON
PV
≤
(SV-ALX
) → Alarm ON
PV
≥
(SV-ALX+HYSA
) → Alarm OFF
PV
≤
(SV+ALX-HYSA
) → Alarm OFF
4
Band
(With hold action)
ON
OFF
SV ALX ALX
OFF
Formula
PV
≤
(SV+ALX
) → Alarm ON
PV
≥
(SV-ALX
) → Alarm ON
PV >
(SV+ALX) → Alarm OFF
PV
<
(SV-ALX
) → Alarm OFF
5
Process high
(With hold action)
ON
ALX
OFF
HYSX
Formula
PV
≥
ALX
→ Alarm ON
PV
≤
(ALX-HYSA)
→ Alarm OFF
6
Process low
(With hold action)
ON
ALX
OFF
HYSX
Formula
PV
≤
ALX
→ Alarm ON
PV
≥
(ALX+HYSA)
→ Alarm OFF
7 Segment execute alarm
When SEG=ALX alarm ON
*
This mode only available in program type controller
8 System error The Alert action, when PV displays error message
9
HBA
(Heater Break Alarm)
Activated conditions
：
1. Heater current is less the HBAC set value
2. OUT1 manipulated value exceed HBOP set value
3. Conditions of 1 & 2 above are established and continue to
exceed 20 seconds.
*
Please refer to Chapter 11.4
*
This mode only available in ALD1 or ALD2
Single RAMP
Please refer to Chapter 11.7
This mode only available in ALD3