Danfoss FC 102 User Manual

NOTICE
MOTOR THERMISTOR SENSOR MONITORING
VLT
®
AutomationDrive units with the VLT
®
PTC
Thermistor Card MCB 112 option are PTB-certied for
potentially explosive atmospheres.
4.5 Installation and Cooling Requirements
NOTICE
Improper mounting can result in overheating and
reduced performance.
Installation requirements
•
Locate the unit as near to the motor as possible.
See chapter 9.5 Cable Specications for the
maximum motor cable length.
•
Ensure unit stability by mounting the unit to a
solid surface.
•
Enclosures E3h and E4h can be mounted:
- Vertically on the back plate of the panel
(typical installation).
- Vertically upside down on the back
plate of the panel.
1)
- Horizontally on its back, mounted on
the back plate of the panel.
1)
- Horizontally on its side, mounted on
oor of the panel.
1)
•
Ensure that the strength of the mounting location
supports the unit weight.
•
Ensure that there is enough space around the
unit for proper cooling. Refer to
chapter 9.9 Enclosure Airow.
•
Ensure enough access to open the door.
•
Ensure cable entry from the bottom.
1) For non-typical installation, contact the factory.
Cooling requirements
•
Ensure that top and bottom clearance for air
cooling is provided. Clearance requirement:
225 mm (9 in).
•
Provide sucient airow ow rate. See Table 4.1.
•
Consider derating for temperatures starting
between 45 °C (113 °F) and 50 °C (122 °F) and
elevation 1000 m (3300 ft) above sea level. See
the design guide for detailed information.
The drive utilizes a back-channel cooling concept that
removes heat sink cooling air. The heat sink cooling air
carries approximately 90% of the heat out of the back
channel of the drive. Redirect the back-channel air from
the panel or room by using:
•
Duct cooling
Back-channel cooling kits are available to direct
the heat sink cooling air out of the panel when
IP20/Chassis drives are installed in Rittal
enclosures. Use of these kits reduce the heat in
the panel and smaller door fans can be specied.
•
Back-wall cooling
Installing top and base covers to the unit allows
the back-channel cooling air to be ventilated out
of the room.
NOTICE
For E3h and E4h enclosures (IP20/Chassis), at least 1
door fan is required on the enclosure to remove the heat
not contained in the back-channel of the drive. It also
removes any additional losses generated by other
components inside the drive. To select the appropriate
fan size, calculate the total required airow.
Secure the necessary airow over the heat sink.
Frame Door fan/top fan
[m
3
/hr (cfm)]
Heat sink fan
[m
3
/hr (cfm)]
E1h 510 (300) 994 (585)
E2h 552 (325) 1053–1206 (620–710)
E3h 595 (350) 994 (585)
E4h 629 (370) 1053–1206 (620–710)
Table 4.1 Airow Rate
Mechanical Installation VLT® HVAC Drive FC 102
14 Danfoss A/S © 01/2017 All rights reserved. MG16O102
44

Danfoss FC 102 Specifications

General

Brand	Danfoss
Model	FC 102
Category	DC Drives
Language	English