Danfoss MCB 101 Installation guide
Installation Guide
VLT® General Purpose I/O MCB 101
VLT® AutomationDrive FC 361
1 Overview
1.1 Introduction
This instruction describes the VLT® General Purpose I/O MCB 101 for use in the VLT® AutomationDrive FC 361, expanding the number of inputs/outputs in the drive.
The VLT® General Purpose I/O MCB 101 includes 3 digital inputs, 2 analog inputs, 2 digital outputs, and 1 analog output.
1.2 Items Supplied
•VLT® General Purpose I/O MCB 101.
Danfoss A/S © 2018.10 |
AN274236124990en-000101 / 130R0857 | 1 |
Installation Guide | VLT® General Purpose I/O MCB 101 |
Safety |
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2 Safety
2.1 Safety Precautions
WARNING
DISCHARGE TIME
The drive contains DC-link capacitors, which can remain charged even when the drive is not powered. High voltage can be present even when the warning indicator lights are off.
Failure to wait the specified time after power has been removed before performing service or repair work could result in death or serious injury.
-Stop the motor.
-Disconnect AC mains, permanent magnet type motors, and remote DC-link supplies, including battery back-ups, UPS, and DC-link connections to other drives.
-Wait for the capacitors to discharge fully. The minimum waiting time is specified in table Discharge time and is also visible on the nameplate on top of the drive.
-Before performing any service or repair work, use an appropriate voltage measuring device to make sure that the capacitors are fully discharged.
Table 1: Discharge Time
Voltage [V] |
Power range [kW (hp)] |
Minimum waiting time (minutes) |
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380–480 |
90–315 kW (125–450 hp) |
20 |
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2 | Danfoss A/S © 2018.10 |
AN274236124990en-000101 / 130R0857 |
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