Micelect Lm3d — Manual
After zero calibration, you must set the weight thresholds for the 'Full Load' and 'Overload' relays.
Performed when the cabin is empty to establish the baseline weight.
1–5 Critical warnings:
: Park the elevator where the car is naturally "lightest." The car is usually lightest at the bottom floor for 1:1 roping systems. Run the car to this floor. 2. Enter Programming Mode : Press the P button on the LM3D display for 3 seconds to begin programming. 3. Zero Calibration ("TARE") : Navigate to the "TARE" function. Press P to select. Confirm the "YES" option to set the zero weight for the empty car. The LM3D will confirm with a beep. 4. Auto-Learn (Sensor Dependent) : For LMC or WR sensors, the unit uses automatic calibration via the wire rope diameter input, eliminating the need for physical test weights. 5. Load Test : Place a known load (e.g., 40%-50% capacity) in the car. Verify the display reads the correct value. If necessary, adjust the gain until the reading matches the actual weight. 6. Verify : Run the empty car up and down the shaft while observing the LM3D display, ensuring the value never goes negative.
: Supports dedicated cabin indicators (such as the Micelect MP or LPM progressive models). micelect lm3d manual
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: Optional outputs include 0-20mA, 4-20mA, or various voltage signals (e.g., +/- 10Vdc, 0-5Vdc). Power & Logic
The manual mentions only Micelect’s software, but the LM3D uses standard serial commands. For custom scripts (Python, LabVIEW), send ASCII strings: X+500 = move X-axis +500 steps; STATUS? returns position. This is not in the manual but derived from protocol analysis.
: Available with analog outputs (0-20 mA, 4-20 mA), various voltage outputs (up to +/- 10Vdc), and RS485 communication. After zero calibration, you must set the weight
Check for mechanical obstruction under the cabin or incorrect sensor installation.
Proper electrical integration is vital to prevent electrical interference or inaccurate weight calculations. Field technicians must strip and land wires carefully according to the color codes mapped out in the official documentation.
is a universal electronic load-weighing control unit designed to safely manage and monitor weight capacities in elevator and lift systems . As an industry standard for safety, the unit processes real-time load data from sensors to trigger specific responses like hold, full load, and overload operations.
Place the sensor on the ropes approximately 1.5 to 2 meters above the shackles, where the ropes are parallel. Initial Closing: Close the sensor slightly. Run the car to this floor
The LM3D control unit is typically installed in the machine room, while sensors (e.g., LMC) are installed on the hoist ropes above the car.
To initiate setup, apply power to the unit and to enter the core programming menu. Navigation utilizes the UP / DOWN arrows to adjust numerical figures and toggle configurations, while the "P" key saves choices and advances the screen. Step 1: Sensor Selection ( SENS ) Choose the exact sensor architecture wired to the hardware: CONTROL UNITS - MICELECT
Press and hold the to unlock the configuration software. Step 2: Select Sensor Profile Choose the matching hardware profile using the arrow keys: LM3D-STD - Ver.M12-2008_EN.cdr - Elevator Equipment
: Features integrated software to correct weight increases caused by the compensating chain Display & Output : Supports various outputs, including (4-20mA, 0-10V) and digital cabin indicators. micelect.ru Technical Pros & Cons
: For certain sensors like the CCP (bed frame), a known weight (at least half the useful load) must be placed in the cabin for manual calibration. Alarms & Indicators
Performed with an empty cabin. Selecting "YES" starts a 15-second countdown to allow the installer to exit the cabin before the unit establishes the zero point.
