Kollmorgen AKD-N-DB Benutzerhandbuch Seite 1183

AKD Benutzerhandbuch | 25.35.4 REGEN.TEXT
(REGEN.POWERFILTERED) exceeds REGEN.WATTEXT, a fault occurs. REGEN.TEXT sets the
time constant of this thermal inertial filter = (REGEN.TEXT/1.1).
REGEN.TEXT can often be found directly on power resistor data sheets. On the data sheet find the
peak overload curve and then find the safe allowed time to be at 150% of the regen resistor's con-
tinuous power rating. Set REGEN.TEXT to this value in seconds. Another way regen resistor peak
overload capability is often specified is by giving the energy rating in joules of the resistor. If you have
the energy rating joule limit E then:
REGEN.TEXT = (1.1)*((E in joules)/REGEN.WATTEXT)
Example
The external regen resistor is rated for 250 W continuous, is 33 ohm, and has a joule rating of 500
joules. To use this resistor, the drive settings become:
REGEN.TYPE = -1 (External Regen)
REGEN.REXT = 33
REGEN.WATTEXT = 250
REGEN.TEXT = (1.1)*(500 j)/(250 W) = 2.2 sec
Related Topics
8.4 Brems-Chopper
KOLLMORGEN | Dezember 2014 1183