Panasonic DVOP001 User Manual

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– 29 –

– 28 –

<Note>

Calibrate the scale of the tachometer (TM) from the potentiometer on
the rear panel.

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)

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.

External braking resistor (DVOP003)

5.6

1 10W

<Precautions>

The resistance of DVOP003 is 5.6

1. When using commercially available

resistor, choose 4.7-6.8

1, 10 W or larger.

ш3.8

12

33

±3.0

0.5

4.8

±0.5

(ш2.5)

9

+

3

–1

3

10.5

±

1.5

(2.2)

0.8

6

±

0.5

14

±

1

10.5

±

1.5

48

±2

(0.6)

Unit: mm

5. Options

Tachometer (DVOP001)

This tachometer is especially designed to operate with our speed
controller so that it can provide easier displaying of motor speed.

65

max40

12.2

8

±

1

8.5

60

48

±

0.3

ø

54

±

1

48

48

Input terminal

Potentiometer
for calibration

2

M3

Mounting
screw

48

±

0.3

Panel cutout drawing

2

–ø

3.5 hole

Pin No.

4

5

Pink

Pink TG

TM

Motor

Speed controller

Unit: mm

<Precautions>

· 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.

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