Specification And Order Codes, Dms 300; General Technical Data; Current Ratings (Ac53A Ratings) - Danfoss VLT DMS 300 Manual

General Technical Data

Supply (L1, L2, L3, 125, 126, 127, 128):
AC line Supply voltage ........................................................................................ 3 x 380 VAC ~ 480 VAC +/- 10%
AC Line Supply frequency ................................................................................................................. 45HZ ~ 65 Hz
Electronics control voltage .......................................................................... +24VDC (20V to 30V), 150mA nominal
Control Inputs
Start (Terminals 18 & 19) .......................................................................................... Binary, 24 VDC, 8mA approx.
Reset/ Coasting stop inverse(Terminal 27) ........................................................... Binary, 24 VDC, 90mA approx. #
Release Electromechanical Brake (Terminal 124) ..................................................... Binary, 24 VDC, 8mA approx.
The Control inputs are suitable for connection to a device with a PNP output stage.
# 20 mA approx. for Standrad versions (SB & ST)
Outputs
Run Output (Terminal 46) ....................................................................... Binary, PNP output, 24 VDC, 20mA max.
The output is short circuit protected.
Electromechanical Brake Supply output
Electromechanical Brake Supply Output (Terminals 122 & 123) ........................................... 180 VDC, 1.0 A max. *
* The electro-mechanical brake supply output voltage is proportional to the Ac line supply voltage,
which is 180 VDC for 400VAC mains, 205 VDC for 460 VAC AC lines.
The output is not short circuit protected.
Operating temperature ......... 14 to +140 deg. F (-10 to +60 deg. C.)(above 104 deg. F. (40 deg. C.) with derating)
Relative humidity ........................................................................................................ 5 -90% RH, non-condensing
Weight .............................................................................................................................................. 7.7 lb (3.5 kg)

Current Ratings (AC53a ratings)

These ratings assume Starting current of 500%
FLC. All ratings are in Amps.
Continuous Ratings (Not bypassed) at 104 deg. F (40 deg C.) Ambient Temperature, < 3000 feet
(1000 m)
No. of starts per hour
10
50
100
300
For ambient temperature or altitude conditions
beyond those listed contact Danfoss.
56
Start Time (sec.)
5
5
5
1
Decentral Solutions
Duty Cycle
70% 50%
8.4 8.7
7.9 8.1
7.3 7.5
7.7 8.0
MG.90.F2.22 - VLT is a registered Danfoss trademark
30%
9.0
8.3
7.6
8.2