Axor Microspeed 12 - Microspeed Nominal Current Adjustment

27
MICROSPEED
REV 04/05
Where:
Rdt is the value expressed in Kohm with a power rating of
1/8 or 1/4w.
Kdt is the tachogenerator costant
n° is the max speed express ed in RPM.
Vref is the max voltage reference expressed in Volts.
When the RDT resistor is mounted adjust the fine speed by
using the VEL potentiometer located in front of the drive.
The drive is pre-set for nominal sized current, (R IN
free). To reduce this value in accordance with the
servomotors characteristics it is necessary to mount a
resistance R IN in the socket (see fig. 1).
A table with the correspondence current/resistor is
reported below. current express in (A).
Clockwise...............Increases
the speed.
CounterClockwise..Decreases
the speed.
The range adjustments are +/
- 20 %.
6.2 Nominal current adjustment
RIN Value
in Kohm
* 18 8.2 4.7 3.3 2.2 1.8 1.2 1 0.82
MCS 1/2
1 0.9 0.8 0.7 0.65 0.6 0.55 0.5 0.45 0.4
MCS 2.5/5
2.5 2.3 2.1 1.9 1.8 1.5 1.4 1.2 1.1 1
MCS 6/12
6 5.5 5.1 4.6 4.2
3.7
3.4 2.9 2.7
2.4
MCS 10/20
10 9.3 8.5 7.7 7.1 6.2 5.8 5 4.6 4.2