WARNING
Do not switch Power Supply DC Voltage!
All power supply switching and E-Stop breaks should be done to the AC supply voltage of the power
supply. Failure to observe these precautions may result in severe damage to the drive.
6.1.2.2.2 Motor Power Supply
The calculation of the needed power for the Motor supply is depending on the application and the used motor.
The nominal supply voltage is 72 VDC.
The possible range is from 24 VDC to 85 VDC.
NOTICE
Use compatible Power Supplies
The motor supply can rise up to 95 VDC when braking. This means that everything connected to that
power supply needs a voltage rating of 100 VDC. (Additional capacitors, etc.)
Due to high braking voltage and sudden load variations of linear motor applications, only compatible power
supplies can be used. See chapter 6.1.3 - Drive Ordering Information.
CAUTION
Circuit Braker for Power Supply
The power supply for the motor must be protected with an external Circuit Breaker: 15 A / min. 100 VDC /
C-Trip / 5 kA rms SCCR.
6.1.2.2.3 Regeneration
If the power supply rises too high when breaking, connect an additional capacitor to the motor power supply.
It is recommended to use a capacitor >= 10’000 μF (install capacitor close to the drive supply!).
6.1.2.3 Connectors and Wiring
The following subchapters provide important information about the correct wiring of the different connectors.
6.1.2.3.1 PE: Protective Earth
PE
Protective Earth
PE
Use min. 4 mm
2
(AWG11)
Tightening torque: 2 Nm (18 lbin)
Table 7: PE Connector: Protective Earth
2S Drive Systems / 0185-1174_E_1V1_SM_C1251-2S / NTI AG
0185-1174_E_1V1_SM_C1251-2S / 2021-11-26 16:43 (Rev. 12500)
Page 37 of 150