Lenze i700 - Manual (Page 155)

Lenze · i700 servo inverter · Reference manual · DMS 1.5 EN · 03/2014 · TD05
155
5 Motor control & motor settings
5.17 Setting the switching frequency
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5.17 Setting the switching frequency
The i700 servo inverter can be operated with the switching frequencies listed below.
0x2939 | 0x3139 - Switching frequency
Note: In case of "8 kHz variable" and "16 kHz variable", variable switching frequencies are involved. If the
permissible continuous current for the respective switching frequency is exceeded, it is automatically switched back
to the next-lower switching frequency and vice versa.
For servo applications, we recommend, if possible, the operation with a fix switching frequency!
Selection list (Lenze setting printed in bold) Info
0 16 kHz variable • Low operating noises of the motor but higher current
consumption during the acceleration phases.
• For operating motors which are designed for
switching frequencies > 8 kHz, e.g. milling drives and
mid-frequency motors.
1 8 kHz variable • Reduced operating noises of the motor but higher
current consumption during the acceleration phases
compared to the operation with 4 kHz.
• E.g. for the operation of internally-ventilated
asynchronous servo motors.
2 4 kHz • Servo applications with medium requirements or
control quality.
• V/f characteristic control
• Operation of motors which are designed for
switching frequencies of 3 to 6 kHz.
10 16 kHz fix From version 01.06
• Servo application with highest requirements or
control quality.
• Operation of motors which are designed for
switching frequencies of 12 to 16 kHz, e.g. mid-
frequency motors.
• Low-noise operation of motors.
11 8 kHz fix From version 01.06
• Servo application with high requirements or control
quality.
• Servo control SM with field weakening
• Operation of motors which are designed for
switching frequencies of 6 to 10 kHz.
 Write access  CINH  OSC  P  RX  TX UNSIGNED_8