Option Function
Trip and Reset
Warn and Log
Log Only
Table 29: 36-5 - Low Pressure
Option Function
Selects the soft starter's response if the pressure drops below the low-pressure trip level (parameter 32-4
Low Pressure Trip Level) or the low-pressure sensor switch closes.
* Soft Trip and Log
Soft Trip and Reset
Trip Starter
Trip and Reset
Warn and Log
Log Only
6.5 Pressure Control
The smart card can start or stop the soft starter (wake or sleep the pump) according to the measured pressure. This can be used for
direct pressure-based control, or the pressure measurement can be used to indicate water depth.
Other sensors can also be used to provide protection and monitoring.
Pressure control uses terminals B23, B24 on the smart card. Use an analog 4–20 mA sensor.
6.5.1 Configuring Pressure Control
Procedure
1. Connect the sensor to B23, B24.
2. Set parameter 30-1 Pressure Sensor Type to Analog.
3. Set parameters 30-2 to 30-4 according to the sensor specifications.
4. Set parameters 33-1 to 33-5 as required.
5. Set parameter 1-1 Command Source to Smart Card or Smart Card+Clock.
6.5.2 Operation
There are 2 different operating modes when using pressure control:
• Level control operation.
• Pressure-based operation.
Configuration
Installation Guide | Pumping Smart Card
AN279052730268en-000102 / 175R1183
20 | Danfoss A/S © 2018.10
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