Yokogawa Electric Corporation - TC10 - ENGINEERING MANUAL - PAG. 30
]
AL3 group
no. Param.
Description
Dec.
Point
Values
Default
44
AL3t
Alarm 3 type
0
nonE = Alarm not used
LoAb = Absolute low alarm
HiAb = Absolute high alarm
LHAo = Windows alarm in alarm outside the windows
LHAI = Windows alarm in alarm inside the windows
SE.br = Sensor Break
LodE = Deviation low alarm (relative)
HidE = Deviation high alarm (relative)
LHdo = Relative band alarm in alarm out of the band
LHdi = Relative band alarm in alarm inside the band
nonE
45
Ab3
Alarm 3 function
0
0 to 15
+1 = Not active at power up
+2 = Latched alarm (manual reset)
+4 = Acknowledgeable alarm
+8 =
Relative alarm not active at set point change
0
46
AL3L
- For High and low alarms, it is the low limit
of the AL3 threshold;
- For band alarm, it is low alarm threshold
dp
From -1999 to AL3H (E.U.)
-1999
47
AL3H
- For High and low alarms, it is the high
limit of the AL3 threshold;
- For band alarm, it is high alarm threshold
dp
From AL3L to 9999 (E.U.)
9999
48
AL3
AL3 threshold
dp
From AL3L to AL3H (E.U.)
0
49
HAL3
AL3 hysteresis
dp
1 to 9999 (E.U.)
1
50
AL3d
AL3 delay
0
From 0 (oFF) to 9999 (s)
oFF
51
AL3o
Alarm 3 enabling during Stand-by mode and
out of range conditions
0
0 = Alarm 3 disabled during Stand by and out of range
1 = Alarm 3 enabled in stand by mode
2 = Alarm 3 enabled in out of range condition
3 = Alarm 3 enabled in stand by mode and in overrange
condition
0
]
LBA group - Loop Break Alarm Parameters
no. Param.
Description
Dec.
Point
Values
Default
52
LbAt
LBA time
0
From 0 (oFF) to 9999 (s)
oFF
53
LbSt
Delta measure used by LBA during Soft start dP
From 0 (oFF) to 9999 (E.U.)
10
54
LbAS
Delta measure used by LBA
dP
1 to 9999 (E.U.)
20
55
LbcA
Condition for LBA enabling
0
uP =
Active when Pout = 100%
dn =
Active when Pout = -100%
both = Active in both cases
both
]
rEG group - Control Parameters
no. Param.
Description
Dec.
Point
Values
Default
56
cont
Control type
0
Pid =
PID (heat and/or)
On.FA = ON/OFF asymmetric hysteresis
On.FS = ON/OFF symmetric hysteresis
nr =
Heat/Cool ON/OFF control with neutral zone
Pid
57
Auto
Autotuning selection
0
-4 = Oscillating auto-tune with automaticrestart at power up
and after all point change
-3 = Oscillating auto-tune with manual start
-2 = Oscillating -tune with auto-matic start at the first power up only
-1 = Oscillating auto-tune with auto-matic restart at every power up
0 = Not used
1 = Fast auto tuning with automatic restart at every power up
2 = Fast auto-tune with automatic start the first power up only
3 = FAST auto-tune with manual start
4 = FAST auto-tune with automatic restart at power up and after
a set point change
5 = Evo-tune with automatic restart at every power up
6 = Evo-tune with automatic start the first power up only
7 = Evo-tune with manual start
8 = Evo-tune with automatic restart at power up and after a set
point change
7
58
Aut.r
Manual start of the Autotuning
0
oFF = Not active
on =
Active
oFF
