Wilo Yonos GIGA2.0-I Installation And Operating Instructions Manual page 176

en
Control settings
Setpoint Δp-v
Emergency operation
Emergency operation speed
Fig. 71: Control settings menu with emergency
operation mode in case of sensor value mal-
function
176
Communication interfaces: Setting and function
The setpoint to which the pump controls is specified according to "Control settings"
[} 154] section.
The "Cable break detection" function is active.
An analogue signal smaller than 1 V is recognised as a cable break.
A set emergency operation speed is then used as emergency operation. For this, the
emergency operation must be set to "Pump ON" in the menu "Control Setting – Emer-
gency Operation [} 158]". If the emergency operation is set to "Pump OFF", the motor
of the pump is switched off when a cable break is detected.
Universal Display text
1.0 Settings
1.1 Control settings
1.1.7 Emergency operation
OFF Pump OFF
ON Pump ON
3
1.1.8 Emergency operation speed
3
Menu item only opens when emergency operation is switched to "ON".
Signal type 2 ... 10 V / 4 ... 20 mA
Setting of an on-site differential pressure sensor:
If a differential pressure sensor is set up on-site at the analogue input AI1 (for instance
at a pump version R1), the pressure sensor range and the pressure sensor position must
be set at the analogue input AI1 (see Fig. 67 Analog input AI1). Possible pressure sensor
positions:
ƒ
Pump flange
ƒ
Standard-compliant position
NOTICE
Recommendation: Set the pressure sensor range to be set at least as high as the
maximum possible delivery head of the respective pump type.
The pressure sensor range must be configured in the "Pressure sensor range" menu
for this purpose. (Fig. 67 Menu analogue input AI1 and Fig. 69 Pressure sensor range
AI1)
Example:
If the pump type has a maximum delivery head of 20 m, the differential pressure sensor
to be connected must be capable of at least 2.0 bar (approx. 20 m). If a differential
pressure sensor with, for example, 4.0 bar is connected, the differential pressure range
must be set to 4.0 bar.
The appropriate signal type for the differential pressure sensor to be connected must
always be selected. In this case 2 ... 10 V or 4 ... 20 mA.
NOTICE
The differential pressure range to be set must always be set to the nominal maxi-
mum value of the connected differential pressure sensor. The nominal maximum
value corresponds to the sensor value 100 %. The value must be read from the rat-
ing plate of the differential pressure sensor. This is the only way to ensure that the
pump controls correctly.
The actual value of the differential pressure runs between the analogue signals
2 ... 10 V or 4 ... 20 mA. It is linearly interpolated.
The applied analogue signal of 2 V or 4 mA represents the actual value of the differen-
tial pressure at "0 %". The applied analogue signal of 10 V or 20 mA represents the ac-
tual value of the differential pressure at "100 %". (See diagram Fig. 70).
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WILO SE 2022-05