User manual

LF-10 Door Control Board

Document no: LF-LF10-UM-ENVersion: v1.16Date: January 2023

01General Features

The LF-10 board is designed for elevator doors with 24 V DC motors, offering high-comfort door control. Its original and ergonomic design makes it easy to use.

Drive and comfort

Comfortable travel · Automatic recognition of open and closed positions · Nudging mode · Audible warning in case of a jam

Installation and use

Easy assembly following ready-made installation logic · Operation compliant with fire regulations · Flexible parameter options · Clear presentation of the operating state on the display

Top view of the LF-10 board with terminals and components labelled — Figure 1 — General view

02Technical Specifications

Supply voltage

Property	Description
Supply voltage	20 V AC
Supply protection	8 A glass fuse

Encoder circuit

Property	Description
Encoder type	Incremental encoder
Supply voltage	5 V DC

Motor

Property	Description
Motor voltage	30 V DC
Maximum current	7 A
Motor protection	Current protection

Inputs

Label	Description
`K5`	Open command signal input, 24 V DC
`K3`	Close command signal input, 24 V DC
`NDG`	Nudging command signal input, 24 V DC
`LIR`	Lirpomp close command signal input, 190 V DC — relevant in internal safety door applications

Output contacts

Label	Description
`R1`	Open limit contact
`R2`	Closed limit contact
`R3`	Stuck contact

03Terminals and Labels

Terminal	Label	Description
Door power supply input	`220L`	System supply phase
	`220N`	System supply neutral
Relay output terminal	`RK1` / `K20`	Open limit contact
	`RK2` / `K19`	Closed limit contact
	`RK3` / `K16`	Stuck contact
	`RCOM`	Relay common input
Command input terminal	`OPN` / `K5`	Door open command signal input, triggered with +24 V DC
	`CLS` / `K3`	Door close command signal input, triggered with +24 V DC
	`GND` / `1000`	GND terminal of the command signal inputs
	`+24V`	+24 V DC output
LirPomp input terminal	`LIR`	Lirpomp 190 V DC close command signal input, for internal safety door applications
Transformer terminal	`220L`	Transformer 220 V AC supply phase
	`220N`	Transformer 220 V AC supply neutral
	`20L`	Transformer 20 V AC output phase
	`20N`	Transformer 20 V AC output neutral
Motor terminal	`M1`	Motor supply terminal
	`M2`	Motor supply terminal
Encoder terminal	`A`	Encoder channel A input
	`B`	Encoder channel B input
	`GND`	Encoder supply (−)
	`+5V`	Encoder supply (+5 V DC)

Difference from the printed manual

The correct assignment is K5 open, K3 close. The two are swapped in this table in the printed manual; the pairing shown here is the corrected one. If you are comparing against your PDF or printed copy, this is the difference.

04Wiring Diagrams

Click a diagram to open it full size.

General connection diagram

General diagram showing the connection of the transformer, motor and encoder to the LF-10 board — Figure 2 — General connection diagram

Manufacturer wiring diagram

Diagram showing the connections on the manufacturer side — Figure 3 — Manufacturer wiring diagram

Assembler wiring diagram

Diagram showing the connections on the assembler side — Figure 4 — Assembler wiring diagram

Signal connection

The command signals can be powered in two ways. Which one you use depends on where the +24 V comes from.

Powered from the control board

Wiring diagram where the signal supply comes from the control panel — Figure 5

Powered from the door board

Wiring diagram where the signal supply comes from the door board — Figure 6

05Commissioning

FIRST SETUPDo this first

Once the door assembly is complete, enter the configuration screen and set the options listed in the Menu section to suit the application.

Board start-up sequence

Flow chart showing the steps after the board is energised — Figure 7 — Board start-up flow chart

Normal operation screen transitions

In the normal operating scenario, the + and − keys move between screens. During manual drive, ENTER moves the panels in the closing direction and ESC moves them in the opening direction.

Diagram of the transitions between screens in normal mode, with example screenshots — Figure 8 — Normal mode screen transitions

When	Keys	Result
As the board is first energised	`+` and `−` together	Configuration screen with manufacturer authorisation
While the board is running	`ESC` and `ENTER` together	Configuration screen with installer authorisation

To leave the configuration settings, press ESC until Exit? appears. When Exit is shown, press ENTER to return to normal operating mode.

06Menu and Parameters

Parameters marked Manufacturer are only visible on the configuration screen entered with manufacturer authorisation.

1 — Language

Options	Description	Auth
`TR` `EN` `FR` `DE` `GE`	Language selection parameter. It has no sub-menu.	Not restricted

2 — General settings

Sub-menu	Options	Description	Auth
Demo?	`Active` `Passive`	When demo mode is active, the door opens and closes continuously.	Not restricted
Command type	`Only Close` `Open/Close`	With `Open/Close` selected, the door moves on the open and close commands. With `Only Close` selected, it moves on the close and Lirpomp commands; it closes when close or Lirpomp is active, and otherwise keeps the door open.	Not restricted
Door type	`Full Auto` `Semi Auto`	—	Not restricted
Manufacturer	`GENERAL` …	Selecting the manufacturer company loads that company's specific settings.	Manufacturer
Position reset	—	Clears the door calibration so that it is learned again.	—

3 — Speed settings

When a value other than MANUAL is selected for Factory Settings, the other speed parameters do not appear in the menu.

Sub-menu	Range	Description	Auth
Factory settings	`SLOW` `MEDIUM` `FAST` `MANUAL`	Sets the door speed parameters to the factory values; with `MANUAL` selected they can be adjusted individually.	Not restricted
Closing speed	0 – 400 mm/s	The highest speed targeted while the door is closing.	Not restricted
Closing slow speed	0 – 100 mm/s	The drift speed as the closing limit is reached.	Not restricted
Closing slow area	0 – 100 mm	The drift distance as the closing limit is reached.	Not restricted
Skate close speed	0 – 100 mm/s	The speed at which the door closes the skate.	Not restricted
Acceleration on close	0 – 1000 mm/s²	The highest acceleration targeted while closing.	Manufacturer
Opening speed	0 – 450 mm/s	The highest speed targeted while opening.	Not restricted
Opening slow speed	0 – 100 mm/s	The drift speed as the opening limit is reached.	Not restricted
Opening slow area	0 – 100 mm	The drift distance as the opening limit is reached.	Not restricted
Skate open speed	0 – 100 mm/s	The speed the door travels at while opening the skate.	Not restricted
Acceleration on open	0 – 1000 mm/s²	The highest acceleration targeted while opening.	Manufacturer
Skate zone	0 – 100 mm	Skate zone parameter.	Manufacturer
Nudging speed	0 – 200 mm/s	Nudging speed parameter.	Not restricted

4 — Control settings

Sub-menu	Range	Description	Auth
Current KP	0 – 1000	Current control multiplier.	Not restricted
Speed KP	0 – 1000	Speed control multiplier.	Not restricted
Closed hold force	0 – 300	The force the motor applies to the door while it is in the closed position.	Not restricted
Open hold force	0 – 250	The force the motor applies to the door while it is in the open position.	Not restricted
Stuck force	0 – 600	The maximum force the door applies to overcome an obstacle while closing.	Not restricted
Closed control force	0 – 700	The force applied to the motor at the closing point.	—
Open control force	0 – 700	The force applied to the motor at the opening point.	—

Jam behaviour

If a jam is detected while closing

The door stops.
The jam location is saved in memory.
Relay R3 is energised to report the jam to the control board.
The door opens fully.
Relay R3 releases.
The door returns to normal operation.

The door slows down as it approaches the obstacle position.

If a jam is detected while opening

The door stops.
The jam location is saved in memory.
A close signal is awaited for 5 seconds.
If a close signal arrives, the door closes.
If the open signal is still active, it tries to open again.

The door passes through the area where the obstacle was detected at slow speed. If the obstacle is overcome, it returns to normal operation; if not, the same process repeats.

5 — Motor settings

Sub-menu	Range	Description	Auth
Encoder pulse	0 – 2048	The number of pulses produced by one revolution of the motor.	Manufacturer
Motor RPM	0 – 3000	—	Manufacturer
Gear ratio	0 – 50	Motor reduction ratio.	Manufacturer
Pulley circumference	0 – 50	Circumference of the drive wheel.	Manufacturer

6 — Factory settings

Options	Description	Auth
`Factory Reset`	Resetting returns the device to its factory settings. It has no sub-menu.	Not restricted

07Troubleshooting

The situations most often met in the field and the points to check, in order.

The door does not moveCheck the power first

Check the 220 V AC input.
Measure the 20 V AC transformer output.
If the 24V LED is not lit, check the glass fuse.
Check the motor power connections.
Check the open and close signals.

The door does not openSignal

Make sure the close signal (CLS / K3) LED is not lit and the open signal (OPN / K5) LED is lit.

The door does not closeSignal

Make sure the close signal (CLS / K3) LED is lit.

Manual door calibration does not startCalibration

If calibration does not start even though ENTER is held down: signals sent by the main board take priority, so manual calibration must be done with the OPN, CLS and NDG signal input connections removed.

The door slams or slows down too earlyLearning

Run the door learning procedure and check again.

The door reports a jam frequentlyMechanics / parameter

Check the encoder input.
The stuck force value may be set too low.
Check the door mechanics.

The door panels vibrateParameter

Check the Current KP value.
Check the encoder input.

The display reads Closed while the lock is closedMotor direction

If the board shows Closed on the display without moving at all when power is applied while the mechanism is locked, the motor direction is reversed. Apply power again and press ESC when the motor direction change warning appears.

In the open position the door closes and opens 2–3 cmSpring / force

If the problem occurs on a single floor only, the door spring on that floor may be too stiff — check it.
The open hold force value may be set too low; increase it.

08Board Dimensions

Technical drawing showing the mounting holes and outer dimensions of the LF-10 board — Board mounting dimensions (mm)