Maintenance, Diagnostics, And Troubleshooting; Introduction; Maintenance And Service; Cleaning - Danfoss VLT Decentral Drive FCD 302 Operating Manual

Maintenance, Diagnostics, a...

6 Maintenance, Diagnostics, and Troubleshooting

6.1 Introduction

This chapter includes:
•
Maintenance and service guidelines.
•
Status messages.
•
Warnings and alarms.
•
Basic troubleshooting.

6.2 Maintenance and Service

Under normal operating conditions and load profiles, the
frequency converter is maintenance-free throughout its
designed lifetime. To prevent breakdown, danger, and
damage, examine the frequency converter at regular
intervals depending on the operating conditions. Replace
worn or damaged parts with original spare parts or
standard parts. For service and support, contact the local
Danfoss supplier.
WARNING
UNINTENDED START
When the frequency converter is connected to AC mains,
DC supply, or load sharing, the motor can start at any
time. Unintended start during programming, service, or
repair work can result in death, serious injury, or
property damage. The motor can start with an external
switch, a fieldbus command, an input reference signal
from the LCP or LOP, via remote operation using MCT 10
Set-up Software, or after a cleared fault condition.
To prevent unintended motor start:
•
Press [Off/Reset] on the LCP before
programming parameters.
•
Disconnect the frequency converter from the
mains.
•
Completely wire and assemble the frequency
converter, motor, and any driven equipment
before connecting the frequency converter to
AC mains, DC supply, or load sharing.

6.2.1 Cleaning

The enclosure (IP66/NEMA type 4x indoor) provides
protection against dirt and water ingress. The enclosure is
suitable for cleaning methods and solvents used in food
and beverage plants. Use the solvent concentration
recommended by the manufacturer. Avoid high-pressure
hot water cleaning at close proximity or of long duration,
because this method of cleaning can damage gaskets and
labels.
MG04F502
Operating Guide

6.3 Frontal LEDs

The actual status can be read via 6 LEDs, which signal the
actual status of the unit. The meaning of each LED is
described in Table 6.1.
Illustration 6.1 Frontal LEDs
Name
ON
Warning
Alarm
Bus MS
Bus NS1
Bus NS2
Table 6.1 LED Status
Danfoss A/S © 11/2016 All rights reserved.
Do not dispose of equipment containing
electrical components together with
domestic waste.
Collect it separately in accordance with
local and currently valid legislation.
ON Warning Alarm
Bus MS NS1 NS2
Color Status Indication
Green On The frequency converter
receives power from mains
voltage, or 24 V external
supply.
Off No power from mains
voltage, or 24 V external
supply.
Yellow On Warning situation is present.
Off No warning is present.
Red Flashing Alarm is present.
Off No alarm is present
Only relevant if Bus module status
optional fieldbus is
Bus network status 1
®
present. See the VLT
Bus network status 2
AutomationDrive FC
302 PROFIBUS
Converter Operating
®
Instructions, VLT
Ethernet/IP MCA 121
Installation Guide, and
®
VLT PROFINET MCA
120 Installation Guide
for specific
information.
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