Function overview
Page 57
Product Manual „Servo drives ARS 2320, ARS 2340, ARS 2320W, ARS 2360W“
Version 8.0
5.2.2
Pulse width modulation (PWM)
The servo drive ARS 2300 is able to vary the clock frequency in the current controller circuit. In most
cases the settings can be made using the parameterisation software Metronix ServoCommander™. In
order to minimize switching losses, the clock of the pulse width modulation can be cut in half as
compared to the frequency in the current controller circuit.
The servo drive ARS 2300 also features a sine modulation or alternatively a sine modulation with third
harmonic. This increases the effective converter output voltage. The type of modulation can be
selected via the Metronix ServoCommander™. The default setting is sine modulation.
If the sine modulation with third harmonic is used, the controllable upper motor speed
limit increases due to the higher control reserve of the PWM output stage.
Table 26:
Output voltage at the motor terminals at U
ZK
= 560V
Converter output voltage
Output voltage at the motor terminals
U
A,(sin)
U
LL,motor
= approx. 320 V
eff
U
A,(sin+sin3x)
U
LL,motor
= approx. 360 V
eff
Содержание ARS 2320
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