Digital length counter LMD6-2R/12-24V
L=(1 ... 999999 m), Us=12÷24V ac/dc, Output 4A/220V, 95x49x113mm
The digital length counter LMD6-2R/12-24V is a microprocessor device with a 6-digit display. It can measure lengths up to 999999 meters and has one output relay. The counter is reversible and can add and subtract lengths. It has two inputs "A" and "B" and operates together with an encoder or with a sensor type "NPN" with two phase-shifted outputs (OVM1-18.24.F). The length counter has a floating point and can indicate "m", "dm", "cm" and "mm". Programmatically can be set various parameters defining the operation of the counter. The device has an energy-independent memory. The length counter is designed for installation in a dashboard (panel montage).
FEATURES
The LMD6-2R reversible digital length counter operate together with an encoder or with a sensor with two phase-shifted outputs type "NPN". It is designed to measure the linear length of fabrics, pipes and other materials, which in their movement rotate a control roller, from which by certain sensor electric impulses are sent to the input of the counter. Depending on the direction of rotation of the control roller, the counter sums or subtracts from the total reading length the value of the coefficient "C". The coefficient "C" is set by the operator in advance when setting the counter. The location of the decimal point of the display can be set so that the length is displayed in meters (m), decimeters (dm), centimeters (cm) or millimeters (mm). In the counter it is possible to set a limit length "L" when reaching which the output relay of the counter turns off.
TECHNICAL PARAMETERS
| Digital indication, LED - red | 6 digits, h=10 mm (height) |
| Counting range, L | 0.001 … 999999 m |
| Supply voltage, Us | 12÷24V ac/dc (11÷31Vdc / 11÷27Vac) |
| Power consumption, P | 2 W (85 mA) |
| Output - relay (NO+NC) | 4A / 220VAC |
| Maximum counting frequency, Fmax | 1 kHz (10 kHz option) |
| Operating temperature, Tamb | -20º...+50º C |
| Degree of protection | IP40 |
| Joining | Terminal block |
| Overall dimensions | 95х49х113 mm |
Programmable parameters
| Limit value, L (m) | 0.001 ÷ 999999 |
| Coefficient, C | 0.001 ÷ 99.999 |
| Position of the decimal point, dP | 0000. / 000.0 / 00.00 /0.000 |
| Time between two adjacent pulses (00 = infinity), t (sec) | 0.0 ÷ 999.9 |
| Active input front (high / low), In | Lo / Hi |
| Interruption of the supply voltage, Us : | |
| - after an interruption, the counting continues from the current data | Cont |
| - after an interruption, the counting automatically starts from the beginning | Full |
| - after an interruption, a stop mode of the current data is established | Ucc |
| - after an interruption, the counter is reset | Goto |
| Automatic start when the power is turned on for the first time | no / Auto |
| Initial state of the output relay (Status), St | ⌈‾⌉ / ⌉_⌈ |
| Upon reaching L : is reset / the output turns off, the counting continues | End G / End C |
Schemes of connection
Fig.1
Connecting an NPN encoder to the counter input
Fig.2
Connection of two NPN sensors to the input of the counter
PNP encoder connection diagram
Fig.3
Connect a PNP encoder to the counter input by adding two 2K / 0.5W resistors.
Overall dimensions (mm)
Short description
The LMD6-2R digital length meter with reversible action, which is used as a means of automating production processes for measuring quantitative values. Used for switching direct current and alternating current electrical circuits.
Documentation
Typical parameters of the length counter LMD6-2R
| TYPE | SUPPLY VOLTAGE | CONSUMPTION |
|---|---|---|
| LMD6-2R / 12-24V | 11÷31VDC / 11÷27VAC | 2W (85mA) |
| LMD6-2R/ 220V | 220VAC ±10% | 4W (16mA) |
