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English
<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
Ω
10W
<Precautions>
The resistance of DVOP003 is 5.6
Ω
. When using commercially available
resistor, choose 4.7-6.8
Ω
, 10 W or larger.
ø3.8
12
33
±
3.0
0.5
4.8
±
0.5
(ø2.5)
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
ø54
±
1
48
48
Input terminal
Potentiometer
for calibration
2–M3
Mounting
screw
48
±
0.3
Panel cutout drawing
2–ø3.5 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.
