Microcomputer board: Frequency serial port subassembly

Code:（17FE820A1）

It is used for processing 15-channel frequency signal. Figure 7-10 shows its contour. The concrete signals

are as follows:

（1） 1# sensor signal of rotating speed of traction motor

（2） 2# sensor signal of rotating speed of traction motor

（3） 3# sensor signal of rotating speed of traction motor

（4） 4# sensor signal of rotating speed of traction motor

（5） 5# sensor signal of rotating speed of traction motor

（6） 6# sensor signal of rotating speed of traction motor

（7） Sensor signal of rotating speed of front cooling fan

（8） Sensor signal of rotating speed of rear cooling fan

（9） Sensor signal of rotating speed of ventilator of main generator

（10） Rotating speed signal of ventilator of front bogie

（11） Rotating speed signal of ventilator of rear bogie

（12） Sensor signal of rotating speed of front turbocharger

（13） Sensor signal of rotating speed of rear turbocharger

（14） Input of standby frequency signal 1

（15） Input of standby frequency signal 2