Danfoss CDS 803 User manual

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1 Introduction
1.1 Purpose of the Installation Guide
This Installation Guide describes the replacement and the software update for the control card in VLT® Compressor Drive CDS 803.
VLT®is a registered trademark for Danfoss A/S.
1.2 Safety Instructions
Only Danfoss authorized, qualified personnel are allowed to repair this equipment. The personnel must be familiar with the instruc-
tions and safety measures described in the VLT® HVAC Basic Drive FC 101 Service Manual.
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 the table Discharge time and is also visible
on the nameplate on the 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)
3x200
6.0–10 (8.0–15)
15
3x400
6.0–7.5 (8.0–10)
4
3x400
10–30 (15–40)
15
1.3 Item Supplied
The following item is supplied:
Control card
Table 2: Code Numbers for Control Cards
Control card type
Code number
Control card, H3, H4, and H5
132B0700
Control card H6
132B1174
AN376926352883en-000101 / 130R1211 | 1Danfoss A/S © 2021.05
Installation Guide
Control Card
VLT® Compressor Drive CDS 803

Danfoss A/S
Ulsnaes 1
DK-6300 Graasten
vlt-drives.danfoss.com
Danfoss can accept no responsibility for possible errors in catalogs, brochures, and other printed material. Danfoss reserves the right to alter its products without notice.
This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already
agreed. All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
*130R1211*
*M0032601*
2 Replacing the Control Card
2.1 Disassembly and Replacement
Follow the instructions in the VLT® HVAC Basic Drive FC 101 Service Manual to disassemble the drive and replace the control card.
2.2 Software Compatibility
After repairing or upgrading hardware, it is important to ensure that the entire product runs on the latest released firmware. Down-
load the latest product firmware using VLT® Motion Control Tool MCT 10.
Table 3: Available Firmware Versions
Hardware version
Firmware version
Control card H3, H4, and H5
2.xx(1)(2)
Control card H6
61.xx(1)
1On units produced up until week 33, 2017, fan speed control is not available and the fan runs continuously at full speed.
261.xx update is required for 18.5–22 kW
When downloading the latest firmware, follow the firmware update procedure in the VLT® Motion Control Tool MCT 10 Operating
Guide. MCT 10 can be downloaded from www.danfoss.com in the Service and support/Downloads section.
NOTICE
An internal fault, Alarm 38, occurs if a firmware update is required. Use the normal MCT 10 firmware update to resolve this error.
AN376926352883en-000101 / 130R12112 | Danfoss A/S © 2021.05
Replacing the Control Card
Control Card
Installation Guide