Adjusting The Operating Parameters; Initial Commissioning - Wilo Sub TWU 3 HS Serie Notice De Montage Et De Mise En Service

English
Normal operation: during normal operation, the
1.
display shows the currently measured pressure
and the current motor speed as a frequency value.
Standby mode: in standby mode, or if the power
2.
supply is interrupted, the display shows the last
measured pressure and the message "Stand-by".
There is no automatic activation in standby mode!
V, I: voltage and current
3.
The display shows the input voltage to the in-
verter and the power consumption of the motor.
Ti, Ta: temperature display
4.
The display shows the ambient temperature
within the inverter and the IGBT power module.
These temperature values impact on the intel-
ligent performance management which limits the
motor's maximum frequency as soon as defined
pre-alarm limit values are reached (factory-set).
Language: user language
5.
The display shows the currently selected user
language. Several languages are available for
selection. To change the language, use the "+" or
"-" buttons.

6.3.2 Adjusting the operating parameters

All parameters are shown via the display on the
frequency converter. You can use the button be-
neath the display for menu control and to change
the values.
Fig. 8: Operating parameters
1 Pmax
2 Dp Start
3 P limit
4 Dp Stop
The operating parameters are not displayed in
the menu during normal operation and are only
required during installation. To access these menu
items, switch the pump into standby mode. Then
press the "+" and "-" buttons together and hold
for 5 seconds.
Use the "»" or "«" arrow keys to switch between
individual parameters. To modify a value, use the
"+" or "-" buttons. To exit the menu, press the
"ON-OFF/Reset" button.
See the table in the appendix (Chap. 10.2) for the
possible setting range, the factory setting and the
recommended setting for each function.
P. max: set pressure
1.
available at all the taps.
Dp.start: negative differential pressure for
2.
defining the start-up pressure
pressure can be set in order to prevent the pump
from starting each time a tap is opened. This
value specifies the difference from "Pmax" at
44
5 Unit
6 Imax
7 Rotat.
The Pmax value is used to set
the desired pressure for the
system. The set pressure is
When you open a tap, the
pressure in the system drops.
The "Dp Start" differential
which the pump is switched on (Pmax - Dp Start
= pump starts).
P. limit: maximum permissible system pressure
3.
On reaching the entered
threshold value, the pump
automatically switches off and
the E9 error message (overpressure) is shown on
the display.
The pump does not switch on again automati-
cally. To switch on the pump again, the operator
must first acknowledge the error message and
restart the pump.
4. Dp.stop: positive differential pressure for defining
the switch-off pressure
After closing the last tap, the
pump continues to run for a
factory-set period (follow-up
time). Consequently, the pressure in the system
increases. Differential pressure "Dp Start" can be
set in order to prevent overloading of the system.
This value specifies the difference from "Pmax" at
which the pump is switched off (Pmax + Dp Stop
= pump stops).
Unit: sets the unit of pressure (bar or PSI)
5.
Imax:
6.
This value defines the maximum
current consumption during
normal operation. If consump-
tion exceeds this value or if it falls below 0.5 A,
the pump is switched off. If the value 0.5 A is set
during installation, the "Imax" limit value has to
be specified each time the pump is switched on.
The pump only starts once the limit value has
been entered.
The set "Imax" value must not exceed the rated
current specified on the rating plate. A higher
value would result in overloading and cause ir-
reparable damage to the pump!
Rotat.: changes the direction of rotation
7.
6.4 Commissioning
The work area of the unit is not a recreational
area and is to be kept free of people! No per-
sons are allowed in the work area during start-
up or operation.

6.4.1 Initial commissioning

Check the following prior to initial commissioning:
• The pump was installed and connected correctly.
• Insulation check was carried out.
• The operating parameters on the frequency
converter (for TWU 3-...-HS-ECP) have been set
correctly.
• The system has been vented and flushed.
COMMISSIONING
WILO SE 05-2019 DIN A4