Control card performance
Scan interval 5 ms
Control card, USB serial communication
USB standard 1.1 (full speed)
USB plug USB type B device plug
NOTICE
Connection to PC is carried out via a standard host/device USB cable.
The USB connection is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
The USB connection is not galvanically isolated from ground. Use only isolated laptop/PC as connection to the USB
connector on the drive or an isolated USB cable/converter.
9.7 Fuses
Fuses ensure that possible damage to the drive is limited to damages inside the unit. To ensure compliance with EN 50178,
use identical Bussmann fuses as replacements. Refer to Table 9.5.
NOTICE
Use of fuses on the supply side is mandatory for IEC 60364 (CE) and NEC 2009 (UL) compliant installations.
Input voltage (V) Bussmann part number
380–500 170M7309
525–690 170M7342
Table 9.5 Fuse Options
The fuses listed in Table 9.5 are suitable for use on a circuit capable of delivering 100000 A
rms
(symmetrical), depending on
the drive voltage rating. With the proper fusing, the drive short-circuit current rating (SCCR) is 100000 A
rms
. E1h and E2h
drives are supplied with internal drive fusing to meet the 100 kA SCCR. E3h and E4h drives must be tted with Type aR
fuses to meet the 100 kA SCCR.
NOTICE
DISCONNECT SWITCH
All units ordered and supplied with a factory-installed disconnect switch require Class L branch circuit fusing to meet
the 100 kA SCCR for the drive. If a circuit breaker is used, the SCCR rating is 42 kA. The specic Class L fuse is
determined by the input voltage and power rating of the drive. The input voltage and power rating is found on the
product nameplate. See chapter 4.1 Items Supplied.
Input voltage (V) Power rating (kW) Short circuit rating (A) Required protection
380–480 355–450 42000 Circuit breaker
100000 Class L fuse, 800 A
380–480 500–560 42000 Circuit breaker
100000 Class L fuse, 1200 A
525–690 450–630 42000 Circuit breaker
10000 Class L fuse, 800 A
525–690 710–800 42000 Circuit breaker
100000 Class L fuse, 1200 A
Specications VLT® HVAC Drive FC 102
82 Danfoss A/S © 01/2017 All rights reserved. MG16O102
99
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