Mitsumi electronic MR-J3- A Manual De Usuario

 

 

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3. SIGNALS AND WIRING 

 
3.6 Detailed description of the signals 

3.6.1 Position control mode 

(1) Pulse train input 

(a) Input pulse waveform selection 

Command pulses may be input in any of three different forms, for which positive or negative logic can 
be chosen. Set the command pulse train form in parameter No.PA13. Refer to section 5.1.10 for details. 

 

(b) Connections and waveforms 

1) Open collector system 

Connect as shown below. 

SD

Servo amplifier

OPC

PP

NP

DOCOM

24VDC

(Note)

Approx.

1.2k

Approx.

1.2k

 

Note. Pulse train input interface is comprised of a photo coupler. 

Therefore, it may be any malfunctions since the current is reduced when connect a 
resistance to a pulse train signal line. 

 

The explanation assumes that the input waveform has been set to the negative logic and forward and 
reverse rotation pulse trains (parameter No.PA13 has been set to 0010). Their relationships with 
transistor ON/OFF are as follows. 

(ON)

(OFF)

(ON) (OFF) (ON) (OFF) (ON)

(OFF)

Forward rotation
pulse train
(transistor)

Reverse rotation
pulse train
(transistor)

(ON)

(OFF)

Forward rotation command

Reverse rotation command

(OFF)