Danfoss VLT MCD 600 Operating Manual page 131

Operating Guide | VLT® Soft Starter MCD 600
12.2.26 Low Pressure
Cause
The pressure sensor connected to the smart card has activated low-pressure protection.
Troubleshooting
• Check the following parameters:
- Parameter 30-1 Pressure Sensor Type.
- Parameter 30-3 Pressure at 4 mA.
- Parameter 30-4 Pressure at 20 mA.
- Parameter 32-4 Low Pressure Trip Level.
- Parameter 32-5 Low Pressure Start Delay.
- Parameter 32-6 Low Pressure Response Delay.
- Parameter 36-5 Low Pressure.
12.2.27 Low Water
Cause
The depth sensor connected to the smart card has activated depth protection.
Troubleshooting
• Check the following parameters:
- Parameter 30-12 Depth Sensor Type.
- Parameter 30-14 Depth at 4 mA.
- Parameter 30-15 Depth at 20 mA.
- Parameter 34-1 Depth Trip Level.
- Parameter 34-2 Depth Reset Level.
- Parameter 34-3 Depth Start Relay.
- Parameter 36-9 Well Depth.
12.2.28 Motor Connection T1/T2/T3
Cause
This trip is not adjustable. The motor is not connected correctly to the soft starter.
Troubleshooting
• Check individual motor connections to the soft starter for power circuit continuity.
• Check connections at the motor terminal box.
• If the soft starter is connected to a grounded delta mains supply, adjust parameter 20-6 Motor Connection to match the motor
connection configuration.
• There are no parameters related to this trip message.
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Troubleshooting
AQ262141844215en-000202 / 175R1174 | 131