Servo motors TA - Introduction

Technical characteristics

AC servo-motor, suitable for KEB frequency inverter

Standard version:

• Protection standard IP54
• Insulation class 155
• PTC thermistor sensor
• Nominal voltage Un=400V or Un=230V
• Number of poles: 6-pole, TA21,TA22 4-pole,

Options:

• UL-Version
• Dust- and water protection IP65

The motors correspond to the following standards:

DIN EN 60034

Rotating electrical machines, rating and performance.

DIN 42948

Mounting flanges for electrical machines

Nominal torque Mn

The values given in the tables are valid for the following conditions:

• Duty cycle S1
• Maximum ambient temperature +40°C
  reduced motor torque at ambient temperature 40°C < θ ≤ 80°C:
  Mth = Mn·(145°C - θ) / 105°C
• Installation altitude up to 1000m above mean sea level

selection conditions at periodical load

$\mathrm{Ma}=\sqrt{\frac{1}{t}\sum {\mathrm{Mai}}^2·\mathrm{ti}}\le \mathrm{Mn}$

$\mathrm{Ma\; max}=\max \left(\mathrm{Mai}\right)\le \mathrm{Mmax}$

Mn [Nm]

Nominal torque Servo motor

Mmax [Nm]

Maximum torque Servo motor

Ma [Nm]

Actual average load torque

Mamax [Nm]

Maximum load torque

Mai [Nm]

Load torque of cycle i

ti [s]

Duration of cycle i

t [s]

Total time $t=\sum \mathrm{ti}$