En en en en – Xylem Aquontroller User Manual

Page 49

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49

MMW

13

Drive ResetAllow

MMA
MMW

RW

N

0

100

5

Number of possible driver restarts following alarms relative to driver. When this value is
reached, the driver stops and displays the fault. When this value is reached, turn the
driver off and back on again. In the event of a short circuit, reset the relative short
circuit number

14

Drive ResetDone

MMA
MMW

R

N

0

100

0

Counts the number of restarts performed by the driver following alarms. To reset this
value, turn the driver off and back on again.

15

Kp (PID)

MMA
MMW

RW

N

0

500

8

Proportional coefficient of PID regulator

16

Hydr ResetTime

MMA
MMW

RW

sec

1

1000

10

Delay between motor starts following hydraulic alarms, such as: no water, insufficient
pressure.

17

Hydr ResetAllow

MMA
MMW

RW

N

0

100

5

Number of possible driver restarts following hydraulic alarms.

18

Hydr ResetDone

MMA
MMW

R

N

0

100

Varie

Counts the number of motor restarts following hydraulic alarms, such as: insufficient
pressure, no water.

19

I DC-Bus....

MMA
MMW

R

A

Varie

Average direct current measured on the DC Bus circuit powering the unit.

20

Water Hammer

MMA
MMW

R

N

0

0

Varie

Counts the number of times the measured pressure exceeds twice the set point.

21

fmin start (Hz)

MMA
MMW

RW

Hz

2.99

45.03

10

Minimum motor start and stop frequency. Frequency at which the driver starts
operating (both when starting and stopping) without using ramps.

22

MinimThreshold

MMA
MMW

RW

bar

0

3

0.8

System pressure value below which “minimum threshold”,
The intervention is delayed by the time set in par. (40).
MMW Version:
Minimum threshold with this flow and the non-return valve, integrated, is open. In this
condition the engine is running at 50Hz and is in working condition outside curve.
MMA Version:
Minimum threshold: the alarm occurs when the system pressure does not exceed the
minimum threshold set Par (22).

In the presence of alarm threshold the pump is stopped and the number of attempts
depends on the par. (17).

23

CurrentValu(bar)

MMA
MMW

R

bar

0.3

MMW07: 7.5
MMA07: 10
MMW12: 7.5
MMA12: 10

Varie

Displays the pressure reference PID. This parameter may vary in certain operating
conditions of drive (acceleration, deceleration,stop procedure).., value can be different
from the nominal value/setpoit par(34).

24

SlowRestartNumb.

MMA
MMW

RW

N

0

100

24

Number of pump start attempts following no water alarm. By default, one start attempt
is performed every 50 mins.

25

NoFluxTime

MMA

R

0.1x

Varie

Counts the number of times the no flow condition is present.

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