What does pressure sensor error mean on Danfoss VLT MCD 600 Controller?
If the Danfoss Controller displays a pressure sensor error, it means the smart card has detected a fault with the pressure sensor. Check the following parameters: - Parameter 30-1 Pressure Sensor Type. - Parameter 36-1 Pressure Sensor.
What to do if the Danfoss VLT MCD 600 Controller shows an instant overcurrent error?
If the Danfoss Controller displays an instant overcurrent error, it means the current on all three phases has exceeded 7.2 times the value set for the motor's full load current. This could be due to a locked rotor or an electrical fault in the motor or cabling. Check for jammed loads and inspect the motor and cables for faults.
How to resolve a motor overload error on a Danfoss VLT MCD 600 Controller?
If the motor has reached its maximum thermal capacity, the Danfoss Controller will show a motor overload. This can happen if the controller's protection settings don't match the motor's thermal capacity. Resolve the cause of the overload, allow the motor to cool down, and then check the following parameters: - Parameter 1-2 Motor Full Load Current. - Parameter 1-4 Locked Rotor Time. - Parameter 1-5 Locked Rotor Current. - Parameter 1-6 Motor Service Factor. - Parameter 5-15 Excess Start Time. - Parameter 6-10 Excess Start Time.
What causes depth sensor error on Danfoss Controller?
If the Danfoss Controller displays a depth sensor error, the smart card has detected a fault with the depth sensor. Check the following parameters: - Parameter 30-12 Depth Sensor Type. - Parameter 36-3 Depth Sensor.
What to do when Danfoss Controller shows low water?
If the Danfoss Controller indicates low water, the depth sensor connected to the smart card has activated depth protection. 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.
What to do if Danfoss Controller detects low control volts?
If the Danfoss Controller detects low control volts, it means the soft starter has detected a drop in the internal control voltage. This protection is not active in ready state. Check the external control supply (terminals A7, A8, A9) and reset the soft starter. If the external control supply is stable, check if the 24 V supply on the main control PCB is faulty, or check if the bypass driver PCB is faulty. Contact the local supplier for advice.
How to troubleshoot motor connection T1/T2/T3 error on Danfoss Controller?
If the Danfoss Controller displays a 'Motor Connection T1/T2/T3' error, it means the motor is not connected correctly to the soft starter. Check individual motor connections to the soft starter for power circuit continuity and 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.
What causes input A trip or input B trip on Danfoss VLT MCD 600?
If the Danfoss Controller displays Input A Trip or Input B Trip, the programmable input is set to a trip function and has activated. Resolve the trigger condition. Check the following parameters: - Parameter 7-1 Input A Function. - Parameter 7-2 Input A Trip. - Parameter 7-3 Input A Trip Delay. - Parameter 7-4 Input A Initial Delay. - Parameter 7-5 Input B Function. - Parameter 7-6 Input B Trip. - Parameter 7-7 Input B Trip Delay. - Parameter 7-8 Input B Initial Delay.
What to do if Danfoss VLT MCD 600 Controller shows a power loss error?
If the Danfoss Controller displays a power loss error, it means the soft starter is not receiving mains supply on one or more phases. Check that the main contactor closes when a start command is given and remains closed until the end of a soft stop. Also, check the fuses. If testing the soft starter with a small motor, it must draw at least 10% of the programmed FLC setting on each phase.
What causes excess start time error on Danfoss Controller?
If the Danfoss Controller shows an excess start time error, possible causes are: - Parameter 1-2 Motor Full Load Current is not appropriate for the motor. - Parameter 2-4 Current Limit has been set too low. - Parameter 2-2 Start Ramp Time has been set greater than the setting for parameter 5-15 Excess Start Time. - Parameter 2-2 Start Ramp Time is set too short for a high inertia load when using adaptive control. Check and adjust Parameter 1-2 Motor Full Load Current, Parameter 2-4 Current Limit, and Parameter 2-2 Start Ramp Time.
General| Brand | Danfoss |
|---|---|
| Model | VLT MCD 600 |
| Category | Controller |
| Language | English |
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