General Information

1

 

 

Range Data

1.3.5Single- and Three-Phase Supply

Due to the line-ripple of the DC-Bus, the rate of usable output voltage is reduced as follows. This reduction affects the maximum attainable speed of the applied motor.

Three-phase supply:

The unloaded output voltage will be reduced to approx. 90%, maximally 85

%

Single-phase supply: 50 – 60 Hz

only servo drive 637f / ..02 up to 06 see the following diagram:

Derating of servo drive output voltage in case of single-phase operationen

Output current [ARMS]

12

 

 

 

 

 

 

10

 

 

 

 

 

 

8

 

 

 

 

 

 

6

 

 

 

 

 

 

4

 

 

 

 

 

 

2

 

 

 

 

 

 

0

0

20

40

60

80

100 [%]

Output voltage in % of unloaded condition

Hint for parameterization:

To avoid unexpected tripping of the under voltage threshold, the parameter setting should be left on default values (EASYRIDER® Windows – Software).

Required motor-terminal-voltage for specified speed.

Approximation: (up to 3000RPM)

Ukl = 1,2 * (EMF * n / 1000) + I * (Rph + RL) [V]

Ukl

Required motor voltage [V RMS]

EMF

Back-EMF of motor [V RMS] / 1000 RPM

Rph

Resistance of motor (between terminals) [Ω]

RL

Line resistance of motor cable [Ω]

I

Motor-current [A RMS]

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07-02-10-01-E-V0505.doc

Product Manaul Type: 637f

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