3 Installation
3.1 Introduction to Installation
The VLT® FCD 300 PROFIBUS Converter MCA 117 changes the functionality of a VLT® Decentral Drive FCD 302 so that it can be used as a
spare part for a VLT® Decentral Drive FCD 300 or a VLT® DriveMotor FCM 300.
A VLT® Decentral Drive FCD 302 (0.37–2.2 kW (0.5–3.0 hp)) with flat bracket and adapter brackets (order number 134B6775) can be
mounted using the same drilling holes as for the FCD 300.
For a 3.0 kW (4.0 hp) FCD 302, mounting with adapter brackets is not possible. Thus, new holes must be drilled to mount the drive.
The FCD 302 cannot be used as a direct replacement of the VLT® Decentral Drive FCM 300 electronic part. For reuse of the existing
electric motor, a terminal box has to be fitted to the motor, and a motor cable has to be used as connection between the motor and
the FCD 302. Observe local regulations when changing the installation.
Initial power-up
The VLT® FCD 300 PROFIBUS Converter MCA 117sets the parameters of the VLT® Decentral Drive FCD 302 to FCD 300 defaults in 3
cases:
• At first time power up.
• When the drive has been set to initialize via parameter 14-22 Operation Mode.
• When a 3-finger reset is performed from the LCP at power-up.
This gives a short commissioning time and improves the backwards compatibility.
The MCA 117 also changes the default settings of the I/Os of the FCD 302 to match those of the FCD 300.
3.2 Electrical Installation
For electrical installation, local regulations might require further updates. This could be the case where the installation must be
updated to fulfill newer standards when machines are updated, or if local regulations have changed since the original decentral drives
were installed.
The following sections contain illustrations showing the old terminal number and their equivalents in the new drive. If a box in a
drawing is empty, there is no equivalent in the VLT® Decentral Drive FCD 302. In most cases, it is possible to program the FCD 302 to
deliver the same function on 1 of the terminals. If there are no boxes at all in an illustration, the drive has no terminal. For example, the
VLT® DriveMotor FCM 300 has a limited number of I/Os compared to the FCD 300.
3.2.1 Supply and Motor Terminals
Power cable terminals are 1:1 compatible between VLT® Decentral Drive FCD 300/VLT® DriveMotor FCM 300 and the VLT® Decentral
Drive FCD 302. If shielded cables are used, ensure that the shield is mounted as stated in the VLT® Decentral Drive FCD 302 Operating
Guide.
Installation
Operating Guide | VLT® FCD 300 PROFIBUS Converter MCA 117
AQ289550754901en-000101 / 130R0890| 11
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