Specifications

MCD3000 Series
44 MG.15.A4.22 - VLT is a registered Danfoss trademark
Fault Procedure
Code Cause & Action
f
Starter overtemperature.
An excessive heatsink temperature has
been recorded.
• Ensure all cooling fans are working.
• Ensure cooling air is able to flow
freely into and out of the starter.
• Ensure the temperature of the
cooling air entering the MCD3000
does not exceed the rated
temperature.
• Reset and restart the MCD3000
after allowing time for the heatsink
to cool.
P
Motor connection error.
• Ensure the motor is correctly
connected to the MCD3000.
■ Trip Log
When the MCD3000 enters a trip state, the cause of
the trip is recorded in a trip log. The trip log records
the cause of the last eight trip events. Each trip event
is numbered. The most recent event is numbered 1,
while the oldest is numbered 8.
ATTENTION
Control voltage must be present to enable the
MCD3000 to record the cause of a trip event.
Therefore, trips caused by, or involving a loss of
control supply voltage may not be recorded.
To view the trip log;
• Enter the programming mode and move to Par.
45, Trip Log.
• Press the [CHANGE DATA/OK] button to view the
most recent trip.
• Use the [+/-] buttons to scroll through the trip log.
A ’marker’ can be placed in the trip log to enable easy
identification of trips that have occurred after the
marker has been placed.
To place a marker;
• Enter the programming mode and move to Par.
45 Trip Log.
• Press the [CHANGE DATA/OK] button to view the
trip log.
• While simultaneously holding down the [+], [-]
buttons, press the [CHANGE DATA/OK] button.
The marker is added as the most recent trip and is
displayed as the letter ’A’ as shown below.
ATTENTION
Markers cannot be placed consecutively.
There must be at least one trip between each
marker.
■
General Faults
Symptom Cause & Action
Starter will
not operate.
• Incorrect or no control supply
voltage. Ensure the correct voltage
is applied. (Terminals A1,A2 & A3).
• MCD3000 is in programming mode.
Exit the programming mode.
• Local push buttons not active. If
attempting to use the start button on
the Local Control Panel, ensure the
MCD3000 is in local control mode.
(Refer to Par. 20 Local/Remote
Mode for details).
• Remote inputs not active. If
attempting to use the MCD3000
remote inputs, ensure the MCD3000
is in remote control mode. (Refer to
Par. 20 Local/Remote Mode for
details).
• Remote start signal not valid. If
attempting to use the remote start
input on the MCD3000, ensure the
remote contacts are correctly
connected and operating properly.
Do this by observing the remote
Starter will
not operate.
control input LEDs. The LEDs
illuminate when there is a closed
circuit. In addition to the start signal
there must be a closed circuit across
the stop and reset inputs for the
starter to function.