Technical Manual for EA350 Analog Pulse Type Servo Driver V101 3.4.8 Frequency division output circuit of CN4 encoder Table 3-9 Description of frequency division output signal of the encoder The frequency division output circuit of the encoder outputs differential signal through the differential driver and open-collector signal through the transistor. Commonly, when a control system is formed with the higher-level device, feedback signal is provided. In the upper computer, please use a differential or optically coupled circuit or NPN circuit based on the signal type selected to receive the signal.
The maximum current of differential output is 20mA; the maximum current of open-collector output is 40mA. Fig. 3-17 Wiring diagram of differential frequency division output Fig. 3-18 Wiring diagram of the open-collector frequency division output terminal Caution ☞ Do connect the signal power ground of the upper computer with the driver GND, and use a twisted shielded pair to reduce noise disturbance. The maximum voltage tolerance of the triode inside the driver is DC30V, and the maximum allowable input current is 40mA.
39 Signal name Pin number Function PA+ 28 Differential frequency division output of phase A Orthogonal frequency division pulse output of A and B PA- 13 PB+ 12 Differential frequency division output of phase B PB- 27 PZ+ 11 Differential frequency division output of phase C Pulse output at the origin of the encoder PZ- 26 OCA 43 OC-gate frequency division output of phase A NPN type Orthogonal frequency division pulse open-collector output of A and B OCB 42 OC-gate frequency division output of phase B NPN type OCZ 35 OC-gate frequency division output of phase Z NPN type Pulse open-collector output at the origin of the encoder GND 29 Pulse open-collector output signal ground