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CALCULATION OF THE MOTOR VOLTAGE
4.2.7.3 Use of the temperature detection
The temperature detection provides the user all possibilities within the resistance
rangespeciedin„4.2.7 Connection of a temperature detection“. This can be:
Thermal contact (NC contact)
e.g. at the brake resistor
T1
T2
Temperature sensor (PTC)
e.g. at motor temperature detection
T1
T2
Mixed sensor chain
T1
T2
Figure 19: Wiring examples of the temperature input
4.2.8 Final test information
Final test information of the machines/systems which are provided with drive converters
according to EN 60204-1 of 2007.
4.3 Calculation of the motor voltage
The motor voltage for dimensioning of the drive is depending on the used components.
The mains voltage reduces according to the following table:
Components % Example
Mains choke Uk 4
Closed loop drive converter with mains and mo-
tor choke at non-rigid supply system:
400 V mains voltage - 15 % = 340 V motor
voltage
Drive converter open-loop 4
Drive converter closed-loop 8
Motor choke Uk 1
Non-rigid supply system 2
Table 11: Calculation of the motor voltage
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