EA180 Series Servo Drive Users Manual When using the external 24V power supply and internal current limiting resistance External 24V power supply and internal current limiting resistor NPN connection External 24V power supply and internal current limiting resistor PNP connection External External +24V +24V Fig. 3-15 (a) Wiring diagram of open collector mode input pulse command (using external power supply and internal current limiting resistor) When using the external 24V power supply and internal current limiting resistor:
External 24V power supply and external current limiting resistor NPN connection External 24V power supply and external current limiting resistor PNP connection External External +24V +24V Fig. 3-15 (b) Wiring diagram of open collector mode input pulse command (using external power supply and external current limiting resistor) The current limiting resistor R1 is selected as follows: The recommended resistance of R1: CC V mA R 1.5 10 1 200 The selection of resistor R1 should meet the formula:
34 Open collector pulse position c Mo am xm ina pn ud t frequency + 24V power is200kpps supply Mini pulse width2.5us PULHIP +24V Servo drive 25 1 2KΩ 33 100Ω 34 100Ω 16 2KΩ 31 100Ω 32 100Ω 36 PULSE+ PULSE- PULHIS SIGN+ SIGN- COM PE PULSE+ PULSE- PULHIS + 24V power supply PULHIP PULSE+ PULSE- PULHIS SIGN+ SIGN- COM PE +24V Servo drive 25 1 2KΩ 33 100Ω 34 100Ω 16 2KΩ 31 100Ω 32 100Ω 36 SIGN- +24V Servo drive 25 1 2KΩ 33 100Ω 34 100Ω 16 2KΩ 31 100Ω 32 100Ω 36 33 PULSE- PULHIS R1 SIGN+ SIGN- 34 100Ω PULHIS SIGN+ SIGN- COM PE + 24V power 25 supply R1 PULHIP 1 PULSE+ 33 R1 PULSE- 34 PULHIS16 SIGN+ 31 SIGN- 32 COM 36 PE +24V Servo drive 2KΩ 100Ω 100Ω 2KΩ 100Ω 100Ω VCC voltage R1 resistance R1 power 24V 2.0K 0.5W 12V 0.8K 0.5W Attention☞ 1.
Always use a twisted pair for a pair of differential signals. 2. The pulse input signal cable must be separated from the power cable at a distance of at least 30cm. 3. Since the pulse input interface is not a shielded input interface, in order to reduce noise interference, it is recommended to connect the output signal ground of the upper device with the signal ground of the servo drive.