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Specifications
12.5 Motor Characteristics
The following tables provide a summary of typical charac-
teristics combined with the available torque at a given
speed (RPM).
Input protection
12.5 A
eff
300 V DC ±10%
Supply voltage
Ripple
V
< 3% (ensured by GP power supply
SS
and C battery)
DC link capacitor
Limited by limiting current of upstream
charging current
power supply
Output frequency
0-200 Hz (1500 RPM with 16-pole motor)
75 °C with installed ISD servomotor
Allowable temperature
rise
Table 12.4 General Performance Data
12.6 Characteristic Curves
12.6.1 S1 Duty Cycle (Continuous duty)
Rated torques apply to continuous operation at an
ambient temperature of 25 °C.
n [1/min]
1600
1400
1200
1000
800
600
400
200
0
0
0.5
1
M [Nm]
Illustration 12.14 S1 Duty Cycle Characteristic Curve
®
VLT
ISD 410 Servomotor Operating Instructions
in connection box
175G7801/02
175G7803/04
175G7805/06
175G7807/08
1.5
2
2.5
3
®
MG75D102 - VLT
is a registered Danfoss trademark
12.6.2 S3 Service Cycle (Intermittent
periodic service)
Rated torques apply to intermittent periodic service at an
ambient temperature of 25 °C.
S3 service cycle is also called intermittent periodic service.
It is characterised by successive load and rest periods. The
motor is de-energised during the rest period, with no
power dissipation. During the load period the motor
temperature rises, and during the rest period the motor
cools down.
The load period is defined by the torque to be provided
by the motor and the motor speed.
The ratio of the load and rest periods is essential for the
thermal profile.
Example:
Mn S3 8 Nm: 6% service cycle S3 120 s – which means
7.2 s run time and 112.8 s rest time
12
12
45
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