Danfoss VLT MCD 600 Guia De Instalacion página 7

VLT® Soft Starter MCD 600
Installation Guide
SHORT CIRCUIT
The VLT® Soft Starter MCD 600 is not circuit proof.
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After severe overload or short circuit, the operation of the MCD 600 should be fully tested by an authorized service agent.
MECHANICAL DAMAGE FROM UNEXPECTED RESTART
The motor could restart after the causes of a shutdown are rectified, which may be dangerous for certain machines or installa-
tions.
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Ensure that appropriate arrangements are made against restarting after unscheduled stops of the motor.
SAFETY OF PERSONNEL
The soft starter is not a safety device and does not provide electrical isolation or disconnection from the supply.
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If isolation is required, the soft starter must be installed with a main contactor.
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Do not rely on the start and stop functions for safety of personnel. Faults occurring in the mains supply, the motor connec-
tion, or the electronics of the soft starter can cause motor starts or stops.
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If faults occur in the electronics of the soft starter, a stopped motor may start. A temporary fault in the mains supply or loss of
motor connection can also cause a stopped motor to start.
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To provide safety of personnel and equipment, control the isolation device through an external safety system.
Disclaimer
The examples and diagrams in this manual are included solely for illustrative purposes. The information contained in this manual is
subject to change at any time and without prior notice. Responsibility or liability is never accepted for direct, indirect, or consequen-
tial damage resulting from the use or application of this equipment.
1.5 Installing the Soft Starter
Do not apply mains voltage to the soft starter until all wiring is complete.
Always apply control voltage before (or with) mains voltage.
These instructions are for basic installation. For advanced applications or further detail, refer to the VLT® Soft Starter MCD 600 Op-
erating Guide.
Procedure
1.
Mount the soft starter, see 1 and 2 in the Illustrations section.
2. Connect control and I/O wiring as required, see 3 in the Illustrations section.
The control inputs are powered by the soft starter. Do not apply external voltage to the control input terminals.
3. Apply control voltage to the soft starter, see 4 in the Illustrations section.
Install supplementary or branch overcurrent protection on the control circuit supply (A7, A8, A9) in accordance with the
electrical code applicable at the installation location.
4. Configure the application:
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