What does L1-T1/L2-T2/L3-T3 shorted mean on a Danfoss VLT MCD 600?
If the Danfoss Controller detects L1-T1, L2-T2, or L3-T3 Shorted, it means that during pre-start checks, the soft starter has detected a short-circuited SCR or a short circuit within the bypass contactor. Consider using PowerThrough to allow operation until the soft starter can be repaired. Also, see parameter 6-19 Shorted SCR Action.
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 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 to do when Danfoss VLT MCD 600 Controller shows high pressure?
If the Danfoss Controller indicates high pressure, the pressure sensor connected to the smart card has activated high-pressure protection. 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 32-1 High Pressure Trip Level. - Parameter 32-2 High Pressure Start Delay. - Parameter 32-3 High Pressure Response Delay. - Parameter 36-4 High Pressure.
How to solve network communication problem with Danfoss VLT MCD 600 Controller?
If the Danfoss Controller displays a network communication error, the network master has sent a trip command to the soft starter, or there could be a network communication problem. Check the network for causes of communication inactivity. Check parameter 6-13 Network Communications.
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 does overcurrent mean on a Danfoss VLT MCD 600?
If the Danfoss Controller shows an overcurrent, it means the current has exceeded the level set in parameter 5-5 for longer than the time set in parameter 5-6. This can be due to a momentary overload. Check the following parameters: - Parameter 5-5 Overcurrent. - Parameter 5-6 Overcurrent Delay. - Parameter 6-5 Overcurrent.
What causes L1/L2/L3 phase loss in Danfoss Controller?
If the Danfoss Controller detects a phase loss on L1, L2, or L3, it means that during pre-start checks, a phase loss was detected. In run state, it indicates that the current on the affected phase has dropped below 10% of the programmed motor FLC for more than 1 second, suggesting a loss of the incoming phase or a disconnection to the motor. Check the supply, input, and output connections for both the soft starter and the motor.
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 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.
General| Brand | Danfoss |
|---|---|
| Model | VLT MCD 600 |
| Category | Controller |
| Language | English |
Provides an overview of the VLT® Soft Starter MCD 600's features and capabilities.
Details the manual version and information on updates and suggestions for improvement.
Lists supplementary resources for understanding soft starter functions and programming.
Outlines the approvals and certifications obtained for the VLT® Soft Starter MCD 600.
Explains the meaning of warning symbols used throughout the manual.
Defines qualified personnel and their responsibilities for safe operation.
Provides essential safety instructions for installing, operating, and maintaining the equipment.
Details the key features, extensive model range, and input/output options.
Explains the structure and meaning of the VLT® Soft Starter MCD 600 type code string.
Guides users on selecting the appropriate soft starter size based on motor requirements.
Provides current ratings for various models under IEC conditions.
Provides current ratings for various models under NEMA conditions.
Presents physical dimensions and weight data for different MCD 600 models.
Specifies required clearances for proper installation and cooling.
Lists optional accessories like expansion cards and remote LCPs.
Details available expansion cards for adding inputs, outputs, or functionality.
Describes the Smart Card accessory for pumping applications.
Lists communication expansion cards for network integration.
Explains the ground fault protection feature and its requirements.
Describes the remote Local Control Panel and its connection.
Details finger guard kits for preventing accidental contact with terminals.
Mentions the USB interface and management software for configuration.
Recommends using a main contactor for protection against voltage disturbances.
Discusses using a shunt trip circuit breaker as an alternative to a main contactor.
Explains the function and use of external bypass contactors.
Describes how to integrate power factor correction using the soft starter.
Explains Type 1 and Type 2 short-circuit coordination methods.
Details Type 1 coordination requirements for short-circuit protection.
Details Type 2 coordination requirements for short-circuit protection.
Provides fuse recommendations for IEC short-circuit coordination.
Provides fuse recommendations for UL short-circuit coordination.
Details standard fault short-circuit ratings for UL compliance.
Details high fault short-circuit current ratings for UL compliance.
Specifies electrical supply voltage, control voltage, and frequency requirements.
Details short-circuit capability regarding fuse coordination.
Covers EMC immunity and emissions compliance according to EU directives.
Describes the input rating for digital inputs and motor thermistors.
Specifies the ratings and functions of relay, main contactor, and analog outputs.
Lists operating and storage temperature, altitude, and humidity limits.
Provides heat dissipation values during start and run operations.
Mentions default settings for motor overload protection.
Lists various certifications like CCC, CE, UL, and Marine.
Specifies the expected operational lifetime of internal bypass contacts.
Provides crucial safety guidelines for the installation process.
Explains how to set the command source for controlling the soft starter.
Provides a step-by-step procedure for initial soft starter setup and configuration.
Details the terminal connections and functions for digital and thermistor inputs.
Illustrates and describes the layout of input terminals.
Explains how to connect and configure motor thermistors.
Describes the wiring for 2-wire start/stop control.
Explains the function of the reset/starter disable input.
Details the configuration and use of programmable inputs.
Mentions the USB port for configuration file transfer and log retrieval.
Details the terminal connections and functions for various outputs.
Illustrates and describes the layout of output terminals.
Explains the configuration and use of the analog output.
Describes the function of the main contactor output terminals.
Explains the function of the bypass contactor output.
Details the configuration and use of programmable outputs.
Provides information on connecting the control voltage supply.
Illustrates and describes control voltage terminal connections.
Details safety and connection procedures for power terminations.
Guides on selecting appropriate connectors based on wire size and material.
Discusses the use of external bypass contactors with specific models.
Explains how to connect the motor in-line or inside delta configurations.
Provides wiring diagram for in-line, internally bypassed installations.
Provides wiring diagram for in-line, externally bypassed installations.
Provides wiring diagram for inside delta, internally bypassed installations.
Provides wiring diagram for inside delta, externally bypassed installations.
Details grounding requirements for different soft starter models.
Introduces common installation scenarios for the soft starter.
Describes a typical internally bypassed installation setup.
Describes a typical externally bypassed installation setup.
Guides users through a quick setup for common application configurations.
Introduces Set-up Tools for parameter management, diagnostics, and testing.
Explains the procedure for setting the soft starter's date and time.
Details how to select and configure the command source for operation.
Allows starting and stopping the soft starter via LCP for initial setup verification.
Simulates motor start, run, and stop to verify correct installation and operation.
Covers loading, saving, and resetting soft starter parameters and settings.
Explains how to save and load parameter settings and logs using a USB drive.
Provides a step-by-step guide for using the USB save and load functions.
Describes the file structure and formats used for USB operations.
Configures automatic start and stop sequences for the motor.
Details the configuration of network addresses for Ethernet communication.
Explains the steps to set IP, gateway, and subnet mask addresses.
Displays the status of digital inputs and outputs on the LCP.
Displays the status of analog inputs and outputs on the LCP.
Shows the soft starter's serial number, model code, and rating information.
Lists the versions of the soft starter's internal software components.
Explains how to disable the thermistor input if it's no longer needed.
Describes how to reset the motor thermal model and its implications.
Introduces the Logs menu for accessing event, trip, and performance information.
Explains the content and organization of the Event Log.
Details the operational statistics counters available for the soft starter.
Explains how to view, interpret, and reset the operational counters.
Describes generating a QR code for quick access to key soft starter information.
Describes the Local Control Panel (LCP) layout and navigation keys.
Explains the functionality and operation of the Remote Local Control Panel.
Provides instructions for adjusting the LCP display contrast.
Explains the meaning and behavior of the status LEDs on the LCP.
Discusses various display screens showing soft starter information and status.
Describes the screen displayed upon power-up showing starter details.
Explains how to select and switch between display screens.
Details screens showing motor status like running current.
Describes the real-time performance graph and its data sources.
Explains how to control the soft starter using various command sources.
Describes how to override the primary command source using programmable inputs.
Covers configuration of automatic motor start and stop sequences.
Details the Clock Mode for daily automatic start/stop operations.
Explains the Timer Mode for timed start/stop cycles.
Describes the PowerThrough function for operation during phase loss.
Explains the Emergency Mode for running the motor while ignoring trips.
Details how to use external inputs to trigger a soft starter trip.
Provides suggested parameter settings for common applications.
Introduces various soft start methods like Constant Current and Adaptive Control.
Explains the Constant Current soft start method and its applications.
Describes Constant Current starting with a current ramp feature.
Explains Constant Current starting with an added Kickstart boost.
Describes the Timed Voltage Ramp (TVR) method for soft starting.
Explains the Adaptive Control method for optimized starting.
Details how to adjust Adaptive Control Gain for performance tuning.
Introduces different methods for stopping the motor.
Explains the Coast to Stop method for natural motor deceleration.
Describes the Timed Voltage Ramp (TVR) stop method.
Explains the Adaptive Control method for optimized stopping.
Describes the DC Brake method for rapid motor stopping.
Explains the Soft Brake method for controlled motor deceleration.
Details the Pump Clean function for impeller debris removal.
Explains how to configure reverse direction operation for the motor.
Explains how to jog the motor for alignment or servicing.
Details operation specifics when the motor is connected inside delta.
Explains how to configure a secondary motor setup for different operating conditions.
Describes how to navigate and access the soft starter's main menu.
Explains the procedure for modifying parameter settings.
Details how to use the Adjustment Lock feature to prevent unauthorized changes.
Provides a comprehensive list of all programmable parameters and their default settings.
Covers parameters related to motor identification and basic settings.
Details parameters for configuring motor start and stop sequences.
Covers parameters for a secondary motor start/stop configuration.
Details parameters for setting up automatic start/stop schedules.
Covers parameters for configuring various motor protection levels.
Details parameters for defining soft starter responses to protection events.
Covers parameters for configuring digital and programmable inputs.
Details parameters for configuring relay outputs and their functions.
Details parameters for configuring the analog output signal.
Details parameters related to the LCP display settings.
Covers parameters for the Pump Clean function.
Details parameters for configuring communication cards.
Covers advanced configuration parameters for the soft starter.
Details parameters for pump control and protection features.
Covers parameters for ground fault protection setup.
Explains how the soft starter responds to detected protection conditions.
Lists common trip messages, their causes, and troubleshooting steps.
Explains the 2-Phase-damaged SCR trip message and troubleshooting.
Details the Battery/Clock error, its cause, and troubleshooting steps.
Explains the Bypass Overload trip, its cause, and troubleshooting.
Explains the Current at Stop trip message and troubleshooting.
Details current imbalance issues, causes, and troubleshooting.
Explains current read error messages and troubleshooting.
Details depth sensor faults, their causes, and troubleshooting.
Explains EEPROM errors, their cause, and troubleshooting.
Details excess start time trips, causes, and troubleshooting.
Explains firing failure messages and troubleshooting.
Explains FLC Too High issues and troubleshooting steps.
Details flow sensor faults, their causes, and troubleshooting.
Explains flow switch sensor faults and troubleshooting.
Details frequency issues and troubleshooting steps.
Explains ground fault issues and troubleshooting.
Details heat sink overtemperature causes and troubleshooting.
Explains high flow protection causes and troubleshooting.
Details high pressure protection causes and troubleshooting.
Explains input trip activation causes and troubleshooting.
Explains instantaneous overcurrent trips and troubleshooting.
Details internal fault messages and troubleshooting.
Explains firmware/hardware mismatch errors and troubleshooting.
Explains issues related to LCP disconnection and troubleshooting.
Details phase loss detection and troubleshooting.
Explains SCR or contactor short circuit causes and troubleshooting.
Details low control voltage causes and troubleshooting.
Explains low flow protection causes and troubleshooting.
Details low pressure protection causes and troubleshooting.
Explains depth sensor protection causes and troubleshooting.
Explains issues with incorrect motor connections and troubleshooting.
Details motor overload causes and troubleshooting steps.
Explains thermistor circuit issues and troubleshooting.
Details network communication problems and troubleshooting.
Explains the 'Not Ready' status and its causes.
Explains overcurrent conditions and troubleshooting.
Details overpower conditions and troubleshooting.
Explains overvoltage conditions and troubleshooting.
Details parameter out-of-range errors and troubleshooting.
Explains phase sequence errors and troubleshooting.
Details power loss detection and troubleshooting.
Explains pressure sensor faults and troubleshooting.
Details rating capacity issues and troubleshooting.
Explains RTD circuit faults and troubleshooting.
Details SCR current surge issues and troubleshooting.
Explains SCR overtemperature causes and troubleshooting.
Details communication module issues and troubleshooting.
Explains exceeding maximum starts per hour and troubleshooting.
Explains thermistor circuit issues and troubleshooting.
Details time-overcurrent issues and troubleshooting.
Explains undercurrent conditions and troubleshooting.
Details underpower conditions and troubleshooting.
Explains undervoltage conditions and troubleshooting.
Details unsupported option errors and troubleshooting.
Explains VZC Fail errors and troubleshooting.
Lists general faults without specific trip messages and their solutions.
Provides a list of symbols and abbreviations used in the manual.
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