Panasonic Automobile Parts DVOP001 User Manual

5. Options  
<Note>  
Tachometer (DVOP001)  
Calibrate the scale of the tachometer (TM) from the potentiometer on  
the rear panel.  
This tachometer is especially designed to operate with our speed  
controller so that it can provide easier displaying of motor speed.  
1. While running the motor at its full rotation speed without load,  
adjust to 1450 min-1 if power supply is at 50 Hz, or 1750 min-1 if  
60 Hz.  
2. Monitor the output signal of the TG on an oscilloscope and  
determine the frequency. And adjust:  
rotating speed N (min-1) = 5 x f (Hz)  
Unit: mm  
TM  
2–ø3.5 hole  
1
Motor  
54  
ø
Caution: Since the circuit is not isolated from the power supply,  
use an insulated tool such as an insulated screwdriver to protect  
against electric shock.  
Pink  
Pink  
4
5
48 0.3  
TG  
Panel cutout drawing  
Pin No.  
External braking resistor (DVOP003)  
max40  
5.6 10W  
Input terminal  
Potentiometer  
Unit: mm  
8
12.2  
1
for calibration  
2M3  
Mounting  
screw  
48  
ø3.8  
65  
8.5  
3
12  
<Precautions>  
33 3.0  
0.5  
(ø2.5)  
4.8 0.5  
· Connect the tachometer in parallel with the tachometer generator (TG).  
· If the tachometer (TM) requires longer connection cable, use shielded  
twisted pair cable. Don't ground shielding of the cable.  
· Accuracy of tachometer readings will depend on variation in motor  
performance and operating environment (temperature and noise).The  
tachometer should be used as a rough indicator.  
(0.6)  
48  
2
<Precautions>  
The resistance of DVOP003 is 5.6 . When using commercially available  
resistor, choose 4.7-6.8 , 10 W or larger.  
 
28 –  
29 –  

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