Revolution counter CMD6-3R/220V
W=(3 ÷ 60'000 rpm), Us=220Vac, 95x49x113mm
The CMD6-3R/220V digital revolution counter is a microprocessor device with a 6-digit display and serves for measuring revolutions in the range from 3 to 60'000 rpm. The rev counter is reversible and has two inputs "A" and "B". It operates in combination with two sensors type "NPN" or one sensor type "NPN" with two dephased outputs (OVM1-18.24.F). The revolution counter indicates the rotation direction of the shaft by means of two LEDs located on the front panel. The tachometer is designed for installation in a dashboard (panel montage).
FEATURES
The CMD6-3R digital revolution counter is used to measuring revolutions of rotation of axles and other turning objects, and shows the direction of their rotation. The rev counter is designed to work with NPN type sensor with two dephased outputs "OVM1-18.24.F" (encoder type) or with a combination of two NPN type sensors. For the correct work of the system “revolution counter - sensor" is necessary to enter one impulse from the sensor to the revolution counter for one full rotation of the object.
TECHNICAL PARAMETERS
| Digital indication, LED - red | 6 digits, h=10 mm (height) |
| Range of revolutions measurement, W | 3 ... 60’000 rpm (600'000 rpm option) |
| Supply voltage, Us | 220 VAC ±10% |
| Power consumption, P | 4 W (16 mA) |
| Maximum input frequency, Fmax | 1 kHz (11 kHz option) |
| Measurement error | ±0,05% |
| Operating temperature range, Tamb | -20º...+50º C |
| Degree of protection | IP40 |
| Joining | Terminal block |
| Overall dimensions | 95х49х113 mm |
Schemes of connection
Fig.1
Scheme of connection of NPN encoder to the input of the rev-counter
Fig.2
Scheme of connection of two NPN sensors to the input of the rev-counter
PNP encoder connection diagram
Fig.3
Scheme of connection of PNP encoder to the input of the rev-counter by adding a resistor 2K / 0.5W.
Illustration
Fig.4
Method of mounting shielded sensors for determining the direction of rotation of shafts using the CMD6-3R revolution counter.
Fig.5
Method of mounting unshielded sensors for determining the direction of rotation of shafts using the CMD6-3R revolution counter.
Overall dimensions (mm)
Short description
The CMD6-3R digital tachometer is an electronic device used as a means of automating production processes. Serves to convert the electrical impulses received to it in revolutions (rpm). The main purpose of the tachometer is to visualize the measured revolutions on a digital display and to indicate the direction of rotation of the shaft.
Documentation
Typical parameters of digital tachometer CMD6-3R
| TYPE | SUPPLY VOLTAGE | CONSUMPTION |
|---|---|---|
| CMD6-3R / 12-24V | 11÷31VDC / 11÷27VAC | 2W (85mA) |
| CMD6-3R / 220V | 220VAC ±10% | 4W (16mA) |
