43
10.7.37 Min. pressure (4.4.2)
Fig. 64
Min. pressure
Description
The discharge pressure can be monitored so that the CU 351 can
react if the pressure becomes lower than a set minimum level for
an adjustable time.
The minimum pressure can be monitored if a fault indication is
required in situations where the discharge pressure becomes
lower than the set minimum pressure.
It is possible to set whether the indication is to be just a warning
or an alarm stopping the pumps. This may be desirable if
Hydro MPC is used for an irrigation system where a very low
discharge pressure may be due to pipe fracture and thus an
extraordinarily high consumption and a very low counter
pressure. In such situations it is desirable that the booster set
stops and indicates alarm. This situation will require a manual
reset of the Hydro MPC.
It is possible to set a start-up delay ensuring that the Hydro MPC
can build up pressure before the function is activated. It is also
possible to set a time delay, i.e. for how long time the discharge
pressure may be lower than the set minimum pressure before the
alarm is activated.
Setting range
•
Activation of the function.
•
Minimum pressure level within the range of the primary sen-
sor.
•
Activation of stop when the pressure falls below the minimum
pressure.
•
Time delay at start-up.
•
Time delay during operation.
Setting via control panel
1. Mark the
Settings
menu with
.
2. Mark
Monitoring functions
with
or
and press
.
3. Mark
Min. pressure
with
or
and press
.
4. Mark
Activated
with
or
and press
to activate/
deactivate the function.
5. Mark
Min. pressure
with
or
. Set the pressure with
or
and save with
.
6. Mark
Stop at min. pressure
with
or
and press
to activate/deactivate the function.
7. Mark
Time delay of function at start-up
with
or .
Set
the time with
or
and save with
.
8. Mark
Time delay of function during operation
with
or
. Set the time with
or
and save with
.
Factory setting
The function is activated per data on customer order.
10.7.38 Max. pressure (4.4.3)
Fig. 65
Max. pressure
Description
The discharge pressure can be monitored so that the CU 351 can
react if the pressure becomes higher than a set maximum level.
In certain installations a too high discharge pressure may cause
damage. It may therefore be necessary to stop all pumps for a
short period if the pressure is too high.
It is possible to set whether the Hydro MPC is to restart
automatically after the pressure has dropped below the maximum
level, or if the system must be reset manually. Restart will be
delayed by an adjustable time, see
.
Setting range
•
Activation of the function.
•
Maximum pressure level within the range of the primary sen-
sor.
•
Manual or automatic restart after fault.
Setting via control panel
1. Mark the
Settings
menu with
.
2. Mark
Monitoring functions
with
or
and press
.
3. Mark
Max. pressure
with
or
and press
.
4. Mark
Activated
with
or
and press
to activate/
deactivate the function.
5. Mark
Max. pressure
with
or
. Set the pressure with
or
and save with
.
6. Mark
Manual
or
Auto
with
or
. Activate the function
with .
Factory setting
The function is activated per data on customer order.
T
M
03
23
16
40
05
TM
0
3
2
520
4
505
www.motralec.com / [email protected] / 01.39.97.65.10
Содержание BoosterpaQ Hydro MPC
Страница 12: ...12 INSTALLATION AND STARTUP NOTES www motralec com service commercial motralec com 01 39 97 65 10 ...
Страница 54: ...54 Variable frequency drive setting notes www motralec com service commercial motralec com 01 39 97 65 10 ...
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