3.SIGNALS AND WIRING

(b)Connections and waveforms

1)Open collector system Connect as shown below:

Servo amplifier

VDD

 

OPC

 

 

Approx.

PP

1.2k

Approx.

NP 1.2k

SG

SD

The explanation assumes that the input waveform has been set to the negative logic and forward and reverse rotation pulse trains (parameter No.21 has been set to 0010). The waveforms in the table in (a), (1) of this section are voltage waveforms of PP and NP based on SG. Their relationships with transistor ON/OFF are as follows:

Forward rotation

 

 

 

 

 

 

 

 

 

 

 

 

 

pulse train

 

(OFF)

(ON) (OFF)

(ON)

(OFF)

(transistor)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reverse rotation

 

 

 

 

 

 

 

 

(ON) (OFF)

 

(ON) (OFF)

 

(ON)

pulse train

 

 

 

(OFF)

 

 

(transistor)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Forward rotation command

 

 

Reverse rotation command

 

 

3 - 24

Page 57
Image 57
Mitsubishi Electronics MR-J2S- A instruction manual Vdd Opc