Alarms - gefran SIEIDrive ADV100 Functions Description And Parameters List

11074
(3)
(1) Set point
(2) Feedback value
Example: suppose parameter 11002 Set point val of a pump pressure control is 10 bar, 11070 Const pressure thr
is set to 5%, 11074 Const press offset is set to 4% and 11076 Fluid loss thr = 1% with 11078 Fluid loss thr time
= 0.6 seconds
This means that to move to the constant pressure condition the feedback must be more than 9.5 bar.
We can consider 2 cases for restarting:
Case 1: the liquid leakage causes the pressure to fall by 0.1 bar per second
In this case the change is lower than the set threshold and to restart the drive the feedback must be less than 9.1
bar due to the settings in parameter 11074 Const press offset.
Case 2: the liquid leakage causes the pressure to fall by 0.2 bar per second
In this case the change exceeds that set in PAR 11076 Fluid loss thr (0.1 bar every 0.6 secongs). After 0.6 seconds
(from when the constant pressure threshold is exceeded) the pressure feedback is 9.38 bar, a leakage is detected
and the drive is restarted.

ALARMS

Menu PAR Description
11050 Feedback loss time
This parameter defines the time for recognising the loss of the feedback signal.
The alarm is only recognised if parameter 11004 Feedback sel is set to PAR 1600 Analog input 1X mon and PAR
1650 Analog input 2X mon.
The drive recognises the alarm if the feedback signal is equal to zero (no signal) for longer than the time set in PAR
11050 Feedback loss time. If this parameter is set to zero, the alarm is not recognised.
Menu PAR Description
11052 Feedback loss act
This parameter defines drive activity following the recognition of a Perdita retroaz PID alarm.
0 Ignore
1 Warning
2 Disable
3 Stop
4 Faststop
Menu PAR Description
11054 Feedback level
This parameter defines the error level (expressed as a percentage with respect to the set point) for generating the
PID FB loss alarm.
The alarm is generated when the PID error is higher than the set threshold.
ADV100 • Functions description and parameters list
(1)
(2)
UM Type FB BIT
sec FLOAT
UM Type FB BIT
ENUM
UM Type FB BIT
% FLOAT
Def Min
0.00 0
Def Min
Stop 0
Def Min
20.000 1.000
Max Acc Mod
10000 RW FVS
Max Acc Mod
4 RW FVS
Max Acc Mod
50.000 RW FVS
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