Danfoss VLT Micro Drive FC 51 Quick Guide

Branch circuit protection
To protect the installation against electrical and re
hazards, protect all branch circuits in an installation, switch
gear, machines, and so on, against short circuits and
overcurrent according to national/international regulations.
Short-circuit protection
Use the fuses mentioned in Table 1.3 to protect service
personnel or other equipment if there is an internal failure
in the unit or short circuit on DC-link. If there is a short
circuit on the motor or brake output, the frequency
converter provides full short-circuit protection.
Overcurrent protection
To avoid overheating of the cables in the installation,
provide overload protection. Always carry out overcurrent
protection according to national regulations. Fuses must be
designed for protection in a circuit capable of supplying a
maximum of 100000 A
rms
(symmetrical), 480 V maximum.
Non-UL compliance
If UL/cUL is not to be complied with, use the fuses
mentioned in Table 1.3, which ensure compliance with
EN50178/IEC61800-5-1:
If there is a malfunction, not following the fuse recommen-
dation may result in damage to the frequency converter
and the installation.
FC 51
Maximum fuses UL
Maximum fuses
non–UL
Bussmann Bussmann Bussmann Littelfuse
Ferraz
Shawmut
Ferraz Shawmut
1x200–240 V
kW Type RK1 Type J Type T Type RK1 Type CC Type RK1 Type gG
0K18-0K37 KTN-R15 JKS-15 JJN-15 KLN-R15 ATM-R15 A2K-15R 16A
0K75 KTN-R25 JKS-25 JJN-25 KLN-R25 ATM-R25 A2K-25R 25A
1K5 KTN-R35 JKS-35 JJN-35 KLN-R35 – A2K-35R 35A
2K2 KTN-R50 JKS-50 JJN-50 KLN-R50 – A2K-50R 50A
3x200–240 V
0K25 KTN-R10 JKS-10 JJN-10 KLN-R10 ATM-R10 A2K-10R 10A
0K37 KTN-R15 JKS-15 JJN-15 KLN-R15 ATM-R15 A2K-15R 16A
0K75 KTN-R20 JKS-20 JJN-20 KLN-R20 ATM-R20 A2K-20R 20A
1K5 KTN-R25 JKS-25 JJN-25 KLN-R25 ATM-R25 A2K-25R 25A
2K2 KTN-R40 JKS-40 JJN-40 KLN-R40 ATM-R40 A2K-40R 40A
3K7 KTN-R40 JKS-40 JJN-40 KLN-R40 – A2K-40R 40A
3x380–480 V
0K37-0K75 KTS-R10 JKS-10 JJS-10 KLS-R10 ATM-R10 A6K-10R 10A
1K5 KTS-R15 JKS-15 JJS-15 KLS-R15 ATM-R15 A2K-15R 16A
2K2 KTS-R20 JKS-20 JJS-20 KLS-R20 ATM-R20 A6K-20R 20A
3K0 KTS-R40 JKS-40 JJS-40 KLS-R40 ATM-R40 A6K-40R 40A
4K0 KTS-R40 JKS-40 JJS-40 KLS-R40 ATM-R40 A6K-40R 40A
5K5 KTS-R40 JKS-40 JJS-40 KLS-R40 – A6K-40R 40A
7K5 KTS-R40 JKS-40 JJS-40 KLS-R40 – A6K-40R 40A
11K0 KTS-R60 JKS-60 JJS-60 KLS-R60 – A6K-60R 63A
15K0 KTS-R60 JKS-60 JJS-60 KLS-R60 – A6K-60R 63A
18K5 KTS-R60 JKS-60 JJS-60 KLS-R60 – A6K-60R 80A
22K0 KTS-R60 JKS-60 JJS-60 KLS-R60 – A6K-60R 80A
Table 1.3 Fuses
Quick Guide
VLT
®
Micro Drive FC 51
10 Danfoss A/S © 05/2016 All rights reserved. MG02BB4P
11

Danfoss VLT Micro Drive FC 51 Specifications

General

Enclosure	IP20
Output Voltage	0-100% of supply voltage
Altitude	Up to 1000 m without derating
Power Range	0.18-22 kW
Control Method	V/f
Communication	Modbus RTU
Protection Features	Over-voltage, under-voltage, over-current, over-temperature
Ambient Temperature	-10°C to 50°C
Storage Temperature	-25°C to 65°C
Relative Humidity	5-95% (non-condensing)
Input Voltage	200-240 V, 380-480 V
Braking Function	Integrated braking chopper (optional)