Danfoss VLT HVAC Drive FC 102, Руководство по эксплуатации

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8 Maintenance, Diagnostics, and Troubleshooting
8.1 Maintenance and Service
This chapter includes:
•
Maintenance and service guidelines.
•
Status messages.
•
Warnings and alarms.
•
Basic troubleshooting.
Under normal operating conditions and load profiles, the
drive is maintenance-free throughout its designed lifetime.
To prevent breakdown, danger, and damage, examine the
drive at regular intervals depending on the operating
conditions. Replace worn or damaged parts with original
spare parts or standard parts. For service and support, refer
to
www.danfoss.com/contact/sales_and_services/ .
WARNING
UNINTENDED START
When the drive 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 drive from the mains.
•
Completely wire and assemble the drive, motor,
and any driven equipment before connecting
the drive to AC mains, DC supply, or load
sharing.
8.2 Heat Sink Access Panel
The drive can be ordered with an optional access panel in
the back of the unit. This access panel provides access to
the heat sink and allows the heat sink to be cleaned of any
dust buildup.
8.2.1 Removing the Heat Sink Access Panel
130
BF210.10
Illustration 8.1 Heat Sink Access Panel Removed from the Rear
of the Drive
1. Remove power from the drive and wait 40
minutes for the capacitors to discharge
completely. Refer to
chapter 2 Safety .
2. Position the drive so that the back of the drive is
fully accessible.
3. Remove the 8 M5 fasteners securing the access
panel to the back of the enclosure using a 3 mm
hex bit.
4. Inspect the leading edge of the heat sink for
damage or debris.
5. Remove material or debris with a vacuum.
6. Reinstall the panel and secure it to the back of
the enclosure with the 8 fasteners. Tighten the
fasteners according to
chapter 9.10.1 Fastener
Torque Ratings .
Maintenance, Diagnostics, a... Operating Guide
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