gefran ADL300 EPC v2 User manual

ADL300 EPC v2
English
User Guide
Rev. 0.3– 17-6-2020
1S9EPEN
SIEIDrive
Application:
Elevator Position Control

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ADL300-EPCv2- User Guide Page 2 of 64
Information about this manual
This manual explains the functions and the description of the parameters.
The information about mechanical installation, electrical connection and fast start-up can be found on the ADL300 Quick
start guide.
The whole set of manuals, included the expansions and field bus manuals, can be found on Gefran web site
(https://www.gefran.com/en/products/416-adl300-lift-field-oriented-vector-inverter-for-synchronous-
asynchronousmotors#downloads).
Software version
This manual is updated according the ADL300 software version V 4.x.4 and EPC ver. 7.x.10.0.
Variation of the number replacing “X” have no influence on the functionality of the device.
The identification number of the software version is indicated on the identification plate of the drive or can be checked with the
Firmware ver.rel parameter - PAR 490, menu 2.5.
General Information
Nota ! In industry, the terms “Inverter”, “Regulator” and “Drive” are sometimes interchanged. In this document, the term “Drive” will be used.
Before using the product, read the safety instruction section carefully (on Quick start manual).
Keep the manual in a safe place and available to engineering and installation personnel during the product functioning period.
Gefran Drives and Motion SRL has the right to modify products, data and dimensions without notice. The data can only be used
for the product description and they can not be understood as legally stated properties.
Thank you for choosing this Gefran product.
We will be glad to receive any possible information which could help us improving this manual.
The e-mail address is the following: [e-mail].
All rights reserved.

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ADL300-EPCv2- User Guide Page 3 of 64
TABLE OF CONTENTS
INTRODUCTION ............................................................................................................................................... 5
1. INSTALL THE APPLICATION ............................................................................................................... 6
1.1 General Information ............................................................................................................................ 6
1.2 Requirements...................................................................................................................................... 6
1.3 Preliminary operations ........................................................................................................................ 6
2. APPLICATION OVERVIEW ................................................................................................................... 8
3. CONFIGURATION OF THE INTERNAL POSITIONING DEVICE (EPC).............................................. 9
3.1 Layout of cams.................................................................................................................................... 9
3.2 Description of Functions (EPC)......................................................................................................... 14
3.2.1 Standard functions: .................................................................................................................... 14
3.2.2 Floor counter.............................................................................................................................. 14
3.2.3 Mechanical constants ................................................................................................................ 14
3.2.4 Elevator Shaft Limit.................................................................................................................... 14
3.2.5 Self Study function ..................................................................................................................... 14
3.2.6 Zero cycle function..................................................................................................................... 14
3.2.7 Jog mode ................................................................................................................................... 14
3.2.8 “Target floor call” mode.............................................................................................................. 15
3.2.9 Realignment:.............................................................................................................................. 15
3.2.10 Emergency Stop ........................................................................................................................ 15
3.2.11 Battery Run Mode ...................................................................................................................... 15
3.2.12 AtFloor - Landing position Reached .......................................................................................... 15
3.2.13 "Passing braking point" signal.................................................................................................... 15
3.3 LIFT CONTROL COMMANDS.......................................................................................................... 16
3.3.1 Maintenance command.............................................................................................................. 16
3.3.2 JogFwd command...................................................................................................................... 16
3.3.3 JogRev command ...................................................................................................................... 16
3.3.4 Zero cycle command.................................................................................................................. 17
3.3.5 SelfStudy command................................................................................................................... 18
3.3.6 FloorCall command.................................................................................................................... 19
3.3.7 Reverse command..................................................................................................................... 19
3.3.8 Forward command ..................................................................................................................... 20
3.3.9 Stop command........................................................................................................................... 20
3.3.10 Battery Run Mode function ........................................................................................................ 21
3.3.11 Battery SEL function .................................................................................................................. 21
3.3.12 Realignment function ................................................................................................................. 21
4. COMMISSIONING VIA KEYPAD......................................................................................................... 22
4.1 ASYNCHRONOUS MOTOR START-UP WIZARD........................................................................... 22
4.2 SYNCHRONOUS MOTOR START-UP WIZARD ............................................................................. 22
5. DESCRIPTION OF PARAMETERS..................................................................................................... 26
6. CONFIGURATION OF INPUT/OUTPUT COMMANDS....................................................................... 53

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ADL300-EPCv2- User Guide Page 4 of 64
6.1 Introduction........................................................................................................................................ 53
6.2 Fixed allocated inputs ....................................................................................................................... 53
6.3 Reallocatable inputs.......................................................................................................................... 53
6.4 Input commands................................................................................................................................ 54
6.5 Example of Control Word Composition............................................................................................. 55
6.6 Outputs.............................................................................................................................................. 56
6.7 Status Word Composition ................................................................................................................. 57
7. REMOTE CONTROL OR VIA I/O ........................................................................................................ 58
7.1 Introduction........................................................................................................................................ 58
7.2 Example of Control via Digital I/Os ................................................................................................... 58
7.2.1 Connection of card EXP–D16R4-ADL: ...................................................................................... 59
7.2.2 Connection of card EXP–DE-IR1F2-ADL .................................................................................. 59
7.2.3 Connection of card EXP–SESC-IR1F2-ADL ............................................................................. 60
7.3 Example of remote control via CANopen.......................................................................................... 61
7.3.1 Connection of card EXP–D8R4-ADL: ........................................................................................ 61
8. APPENDIX............................................................................................................................................ 62
8.1 Appendix A: floor cam ....................................................................................................................... 62

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ADL300-EPCv2- User Guide Page 5 of 64
INTRODUCTION
This document provides all the information necessary for the design, wiring and configuration of a system
based on the EPC (Elevator Position Control) application in the lift industry using a product from the
SIEIDrive ADL300 series.
It describes the sequences and functions of EPC (Elevator Position Control). The version 2 introduce the
enhancement to manage installations up to 32 floors doubling the previous version where the max number of
floors was 16.
The EPC function is a position regulator for direct, "one shot" arrival at the floor without having to slow down
during the approach.
The control must function on ADL300 drives in all the control modes envisaged (FOC and BRS)
The EPC functions are installed in the ADL300 series of drives as application 2. To enable the function the
558 Application select parameter must be set to 2(see ADL300-…-FP manual).
For all information about the ADL300 series of drives reference should be made to the “Quick start guide
and Specifications and connection” (ADL300 QS –EN manual 1S9QSEN).

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ADL300-EPCv2- User Guide Page 6 of 64
1. INSTALL THE APPLICATION
1.1 General Information
This section describes a standard application commissioning procedure.
The preliminary operations for commissioning ADL300 drives are described in chapter 8 of the “ADL300
Quick Start Guide".
1.2 Requirements
The EPC application for ADL300 requires firmware version 2.00. or higher (Releases 1.x do not support the
EPC application).
To install the application you must have a PC, version 1.6.5 or higher of the Gefran GF_eXpress software
with Catalog, the RS-485 serial interface cable (cod 8S864C).
The application set-up file contains an automatic procedure that copies the required files in the specific
folders of the GF_eXpress catalog.
1.3 Preliminary operations
The EPC application is preloaded in the drive as Application 2 (refer to the menu parameter 4.5 PAR 558
Application sel).
Once GF_eXpress is installed perform the following procedure:
•Select the ADL300A (Asynchronous) or ADL300S (Synchronous) Lift drive.
•Selezionare la versione dell’applicazione:
• ADL300S: 4.x.4 EPC 7.x.10.0 (EPC for Synchronous Motors)
• ADL300A: 4.x.4 EPC 7.x.10.0 (EPC for Asynchronous Motors)

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ADL300-EPCv2- User Guide Page 7 of 64
•At this stage the application is ready to be used.
Parameters are available in menu 5 “LIFT”.
.

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2. APPLICATION OVERVIEW
This section contains a general description of the EPC (Elevator Positioning Control) application.
The EPC (Elevator Positioning Control) function is a separate application for independent management of
direct arrival at the floor with internal position regulator and saving of floor distances (system autotuning).
There are two possible configurations for this application:
- Digital I/O control: in the installations where the number of available I/Os is sufficient, the control can
be done via I/Os. NDigital Inputs are necessary to manage a system with 2N floors. If the number of
I/Os available in the BASIC version (ADL300B) is not sufficient, it is possible to use the ADVANCED
(ADL300A) version with an adequate number of I/Os (e.g. by using the EXP-IO-D16R4-ADL
expansion card).
- Remote control via CANopen fieldbus: it is possible to control the application via CANopen fieldbus,
saving in this way I/Os. To use this mode the ADL300 must be equipped with the CANopen
interface. (Order the ADL300 version with CAN interface).
- In case of systems where the number of floors is 16+, the use of CANopen control is suggested.
The main requirements for the EPC function are:
-Maximum operating speed (4m/s)
-Maximum number of floors 32
-Stop at floor without approaching at reduced speed (positioning for direct arrival at floor)
-Automatic management of speed and ramp times according to the floor of call and arrival
-Management of brake and contactor command sequences
-Availability of configurator for complete configuration and monitoring of operating variables.
-Possibility of calling floors directly (floor booked) or of requesting stops at floors during travel.
-Possibility of entering corrections and compensations on floor levels
Advanced controls:
-Inertia Compensation
-Battery run mode with choice of preferred direction
-Over Permissible Speed protection
The following functions are managed externally, by an external PLC or electromechanical unit:
-Floor call logic
-Safety logic
The control system recognises the position of the floors via a series of cams installed along the path of the
lift car. It uses a Self Study initialisation sequence to detect the position of these cams, on the basis of which
it determines the level of each floor and the number of floors.
The distance between floors may vary from floor to floor, subject to certain restrictions.

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ADL300-EPCv2- User Guide Page 9 of 64
3. CONFIGURATION OF THE INTERNAL POSITIONING DEVICE (EPC)
3.1 Layout of cams
The floor management cams must be arranged as illustrated in the figure:
UpperLimit
There must only be one
landingZone cam
inside this area.
Maximum landing zone
Maximum lift travel limit.
Minimum landing zone
Minimum lift travel limit.
Deceleration zone
Deceleration zone
SlowUpperLimit
SlowLowerLimit
There must only be one landingZone cam
inside this area.

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ADL300-EPCv2- User Guide Page 10 of 64
Types of cams
Three types of cams are used in the system:
Deceleration cams
•There are two deceleration cams:
•Deceleration lower limit (SlowLowerLimit) read by the InputSlowLowerLimit input;
•Deceleration upper limit (SlowUpperLimit) read by the InputSlowUpperLimit input.
•These cams have the following functions:
•SlowLowerLimit: if engaged it may cause the lift to slow down when this is travelling towards the
lowest floor at an incorrect speed.
•SlowUpperLimit: if engaged it may cause the lift to slow down when this is travelling towards the
highest floor at an incorrect speed.
The length of the deceleration cams must be calculated so that the lift car has time to stop from the moment
it engages a cam while travelling at maximum speed before reaching the maximum lift travel limit.
There may be several landing zones in the area covered by the deceleration cams.
In some systems the qualification cams, described below, can be used as deceleration cams. In this case
there must only be one landing zone in the area covered by the deceleration cams.
Qualification cams
•There are two qualification cams:
•The LowerLimit cam read by the InputLowerLimit input
•The UpperLimit cam read by the InputUpperLimit input
These cams are used for the following functions:
•Execution of the Zero Cycle, in conjunction with cams A and B.
•The Self Study sequence for storing the position of the floors present in the system.
The qualification cams qualify the end landing zones and thus determine the first and top floors. For this
reason there must only be one landing zone in the area covered by the qualification cam.
Floor counter cams
Each floor in the system is associated with a pair of floor counter cams.
•These cams are called CAM A and CAM B and are read by the InputCammaA and InputCammaB inputs.
•The landing zone is the area determined by the logical OR of cam A and cam B.
•There is one pair of cams for each floor in the system.
•These cams are used by the following functions:
•Floor counter.
•Realignment of the lift car at the floor.
•Zero cycle at the lowest floor, in conjunction with theLowerLimit qualification cam.
•Zero cycle at the highest floor, in conjunction with the UpperLimit qualification cam.
•The Self Study sequence for storing the position of the floors present in the system.

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ADL300-EPCv2- User Guide Page 11 of 64
Layout of floor counter cams
The cams must be arranged as follows with respect to the lift floor:
LC Length of cam A and of cam B.
d1 = d2 Distance between the lower edge of cam A and the line of the floor.
Distance between the upper edge of cam B and the line of the floor.
z1, z2, z3 >= LC / 2 Dimension of an acquisition zone.
This value must be greater than or equal to LunghezzaMinimaCamma / 2.
Landing Zone = (LC / 2) * 3 Dimension of the landing zone
LC
d1
d2
z1
z2
z2
Cam A
Cam B
Line of the floor
Landing
Zone
Positive direction
Sensor B
Sensor A

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ADL300-EPCv2- User Guide Page 12 of 64
The figure below shows a possible alternative cam and sensor layout. This second method is functionally
identical to that illustrated on the previous page but simpler to install and service. For further details please
see appendix B.
Landing zone cam
LC => LunghezzaMinimaCamma Length of cam A and of cam B.
d1 = d2 Distance between the upper edge of cam A and the line of the floor.
Distance between the lower edge of cam B and the line of the floor.
z1, z2, z3 >= LC / 2 Dimension of an acquisition zone.
This value must be greater than or equal to LunghezzaMinimaCamma / 2.
Landing Zone = (LC / 2) * 3 Dimension of the landing zone
Line of the floor
LC
d1
d2
z1
z2
z2
Landing
Zone
Positive direction
Sensor A
Sensor B
z1

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ADL300-EPCv2- User Guide Page 13 of 64
Use of cams to count floors
The floor counter cams are arranged so as to simulate a hypothetical incremental encoder "spread" over
the lift shaft. In this hypothetical simulation the cams correspond to the notches on the disk and the two
sensors, on the lift car, represent the photocells.
The system can detect the absolute position of the lift car, as it is immune to counting errors caused by the
lift cables slipping on the pulley or stretching.
Like all incremental encoders, it must first be initialised. This is performed automatically during the
initialisation of the motor incremental encoder by executing the zero cycle sequence.
Floor counter check
The progress of the floor counter can be checked by moving the lift car in the shaft.
If the floors are counted in the opposite order to that intended, invert the inputs of cam A and cam B on the
terminal board of the drive, in the same way as for a normal incremental encoder.

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3.2 Description of Functions (EPC)
The internal positioning device (EPC) offers standard functions, positioning mode functions and special
functions.
3.2.1 Standard functions:
Some of the functions are already available in the standard version of the drive (EFC application). These
mainly include:
-Signals and sequences for brake and door contactor commands
-Pre-torque function
-Ramping down of current at the end of the sequence
-Weights and estimated inertia.
3.2.2 Floor counter
The application must be able to read the floor counter cams (cam A and cam B), and recognise the current
position in the shaft and the direction of travel. The floor counter cams are arranged so as to simulate a
hypothetical incremental encoder "spread" over the lift shaft. The position is thus controlled twice, once
based on the reading of the motor position sensor and once based on the reading of the cams to check the
real position of the lift car in the shaft.
3.2.3 Mechanical constants
Specific parameters used to perform exact calculations of mechanical constants (separation of the ratio into
two parameters).
3.2.4 Elevator Shaft Limit
Control functions to prevent shaft limits from being exceeded. The controls regard both position and speed.
An alarm must be generated if the control systems intervene.
3.2.5 Self Study function
The Self Study command is used to set a special control system mode in order to detect the height of the
cams indicating the position of the floors in the lift shaft. These heights are detected automatically by
performing a series of movements. The following positions are stored for each floor: A Low, B High This
command should only be executed when installing the control system or moving the floor identification cams.
No direct floor call or movement commands are possible (except jog and zero cycle) unless a Self Study
command has been correctly executed.
3.2.6 Zero cycle function
The zero cycle command is used to move the lift car to a known zero position. A zero cycle must be
executed each time the drive is switched on to reset the floor counter and rephase to a known position. The
encoder alarm generates a loss of zero
3.2.7 Jog mode
This command is used to perform manual jog operations in both directions. This is necessary during
maintenance operations and commissioning.

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ADL300-EPCv2- User Guide Page 15 of 64
3.2.8 “Target floor call” mode
In this mode the PLC sends the command of the floor to be reached directly via digital inputs or CANopen
control word (floorSel =..4) and a pulse signal of recognition (floor call).
Thus the application already has a target destination before sending a start command.
A request to change destination may be received during travel, with the application giving a negative
response: “Passed Braking Point" or a positive response: “Change target” signal.
3.2.9 Realignment:
The lift car is not mechanically integral with the motor pulley and the lift cables could, for a variety of
mechanical reasons, slip on the motor pulley. This would alter the position of the lift car with respect to that
calculated by the control system using the encoder on the motor, resulting in misalignments. These can lead
to incorrect positioning of the lift car with respect to the floor.
To overcome these problems the control system incorporates the following realignment functions:
•Static realignment.
•Dynamic realignment.
3.2.10 Emergency Stop
No operations must be possible during an emergency stop. The external PLC must disable the drive and
apply the brake.
3.2.11 Battery Run Mode
Battery run mode is enabled in the event of a power failure, if the emergency battery power supply unit is
present. It allows the lift car to reach the nearest floor (in the direction in which it uses least energy) so that
passengers can get out, without the manual operations required with conventional systems.
3.2.12 AtFloor - Landing position Reached
The control system generates this signal (AtFloor) each time the landing position is reached
3.2.13 "Passing braking point" signal
This signal is activated, in floor call mode, if the external PLC attempts to change the floor to be reached
while the lift car is moving. In this case the control system evaluates the possibility of stopping at the
requested floor on the basis of the current operating conditions. If this is possible, the system automatically
changes the floor to be reached. Otherwise the previous request is maintained and the system sends a
"passing braking point" signal to the PLC. This is a pulse signal proportional to the length of the call
3.2.13.1 Reverse target safety
This function is used if the PLC generates a call error. This may occur for example if, while the lift car is
travelling, a request is received to stop at a floor in the opposite direction of travel. In this case the control
system generates a "Passed Braking Point" signal and continues to travel towards the previously requested
position.

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ADL300-EPCv2- User Guide Page 16 of 64
3.3 LIFT CONTROL COMMANDS
The following commands are available:
•Jog Forward (JogFwd)
•Jog Reverse (JogRev)
•Zero cycle (Cycle0)
•Self study (SelfStudy)
•Floor call (FloorCall)
•Forward (Forward)
•Reverse (Reverse)
•Stop (Stop)
•Maintenance (Maintenance)
•Realignment (Relevelling)
•Emergency command (Battery Run)
•Emergency function (Battery Sel)
3.3.1 Maintenance command
The maintenance command acts on forward and reverse. For further details please see the description of the
two commands.
3.3.2 JogFwd command
The JogFwd command moves the lift car in the positive direction.
The following operating modes are implemented for this command:
•On the rising edge of the JogFwd command the lift starts moving in the positive direction, which is
normally upwards. The following events may occur while the lift car is moving:
•Removal of the JogFwd command: the lift stops in any point after completing the set deceleration
ramp.
WARNING!
As per specifications, the JogFwd command has no movement limits, the user must therefore take care to
stop the lift in time.
3.3.3 JogRev command
The JogRev command moves the lift car in the negative direction.
The following operating modes are implemented for this command:
•On the rising edge of the JogRev command the lift starts moving in the negative direction, which is
normally downwards. The following events may occur while the lift car is moving:
•Removal of the JogRev command: the lift stops in any point after completing the set deceleration
ramp.
WARNING!
As per specifications, the JogRev command has no movement limits, the user must therefore take care to
stop the lift in time.

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ADL300-EPCv2- User Guide Page 17 of 64
3.3.4 Zero cycle command
The zero cycle command is used to initialise the lift encoder counter and the floor counter. When the
initialisation procedure is complete, if the floor levels are operational, it executes a floor 0 positioning
operation.
The zero cycle is a sequence used to:
•Initialise the motor incremental encoder.
•Initialise the floor counter function performed by the realignment cams.
The following conditions are necessary in order for the zero cycle sequence to function correctly:
1. Set the ZeroSpd parameter, which represents the zero search speed, to a suitably low value.
2. In the area delimited by the Lower Limit cam there must only be one floor cam, also called a zero cam.
The zero cam consists of the or of the two floor cams.
3. The zero cycle sequence must never be started when the position of the lift car is lower than the
deceleration cam.
The zero cycle sequence is performed as follows:
1. If the zero cam is not engaged:
•The lift car starts moving in the negative direction.
•The moment the lift car engages the zero cam, the incremental encoder position and floor counter
are initialised.
•The lift car stops and the system sets ZeroFound = 1 and concludes the zero cycle sequence.
2. If the zero cam is engaged:
•The lift car starts moving in the positive direction.
•The movement stops when the lift car releases the zero cam.
•The lift car starts moving in the negative direction.
•The moment the lift car engages the zero cam, the incremental encoder position and floor counter
are initialised.
•The lift car stops, the system sets ZeroFound = 1 and concludes the zero cycle sequence.
For a variety of reasons, the zero sequence must be performed at low speed. If the sequence is launched
with the lift car a long way from the zero cam, the cycle could take a very long time to be executed.
Home Zone
There must only be
one landing zone
cam in this area.
Zero cam
This cam is the logical OR of cam A
and cam B.
Direction of increase in height of lift.
Never start the zero cycle
sequence if the lift car has
exceeded this limit!
.

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ADL300-EPCv2- User Guide Page 18 of 64
3.3.4.1 Minimum lift travel limit
The minimum lift travel limit is equal to the minimum limit of the zero cam.
The lift must normally never exceed this limit, although there are some exceptions when special
maintenance operations are required.
Due to these exceptions the control system does not perform any checks or take any action if this limit is
exceeded. All control procedures and any alarms are thus managed by the external PLC.
The external PLC must also prevent activation of the zero cycle sequence if the lift car is below the zero
cam. If this rule is not observed the lift car will over-travel into the pit and crash into the floor of the shaft.
3.3.5 SelfStudy command
The Self Study command is used to detect the position of the cams indicating the position of the floors in the
lift shaft. The control system detects these positions automatically, by performing a series of movements.
This command should only be executed when installing the control device or moving the floor identification
cams.
WARNING: before executing the Self Study command, check that the cams are arranged in their
correct positions, especially the deceleration cams. Also check that the size of the deceleration cam
is sufficient to stop the control system. Remember that these sequences start and stop according to
the positions of the cams. Cams that are not in their correct position could cause a collision.
The Self Study sequence is as follows:
1. The Self Study sequence is activated on the rising edge of the Self Study command.
2. The ZeroFound variable is set to FALSE; the control system must therefore run a zero cycle sequence.
3. The control system moves the lift, at the ZeroSpd speed, in the negative direction until engaging the
lower limit cam.
4. After engaging the lower limit cam, it continues, at the ZeroFound speed, until engaging cam B of floor
zero. On the upper margin of cam B the control system initialises the encoder 0 position and floor
counter.
5. It continues in the negative direction, at the same speed, until engaging cam A of floor 0. After engaging
cam A it stops.
6. Set SelfStudyOK = FALSE.
7. This resets all the positions of the cams: A Low, B High; reset the adjust parameters: Adj Up and Adj
Dw.
8. The lift moves in the positive direction at the Self Study speed ().
9. While moving the system detects the position of the car at the edges of all the cams it meets, including
the deceleration and qualification cams.
10. Upon engaging the upper deceleration cam, Slow Upper Limit, it reduces the speed to the value set in
ZeroSpd.
11. It continues in the positive direction until engaging cam B of the top floor. Once engaged, it stops.
12. It stores the positions detected.
13. It calculates the position of the lower edge of cams A and B of floor 0. The lift car must not reach these
edges, so the control system assumes that the size of cam A at floor zero is identical to that of cam A at
floor one, and thus calculates the lower edge of cam A as follows:
A Low (floor 0) = A High (floor 0) – ( A High (floor 1) - A Low (floor 1))
The same procedure is used to calculate the lower edge of cam B.
14. It calculates the position of the upper edge of cams A and B of the top floor. The lift car must not reach
these edges, so the control system assumes that the size of cam A at the top floor is identical to that of
cam A at the second-to-last floor, and thus calculates the upper edge of cam A as follows:
A Low (top floor) = A High (top floor) – ( A High (second-to-last floor) - A Low (second-to-last floor))
The same procedure is used to calculate the upper edge of cam B.
15. The lift car is moved into position at the top floor.
16. Set SelfStudyOK = TRUE.

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ADL300-EPCv2- User Guide Page 19 of 64
3.3.6 FloorCall command
This command is used to request positioning of the lift car at a specific floor.
This command has the following operating mode:
1. On the rising edge of the FloorCall command a request is sent to position the lift car at the requested
floor.
2. The lift starts to execute the positioning operation at the requested floor. The following events may occur
while the lift car is moving:
•Removal of the FloorCall command: nothing happens.
•Resending of the FloorCall command, to a new floor: the following situations are possible:
-The new floor that has been requested cannot be reached because it has already been passed
or because the lift could not stop at the position of the new floor. The lift therefore continues as
per the original plan.
-The new floor that has been requested can be reached and the lift moves towards the new floor.
This command can ONLY be executed if the Self Study sequence has been successfully completed, and the
SelfStudyOk parameter is set to TRUE.
3.3.7 Reverse command
The reverse command has four operating modes:
Case
Cause
Action
Description
1
Maintenance input closed (enable)
JogRev
Executes the jog reverse command
See "Reverse command with
Maintenance input = enable" section
2
Maintenance input open (disable)
Zero cycle not done (ZeroFound = FALSE)
Lift car stopped NOT at top floor
See "Reverse command before zero
cycle not from last floor" section
3
Maintenance input open (disable)
Zero cycle not done (ZeroFound = FALSE)
Lift car stopped at top floor
See "Reverse command before zero
cycle from last floor" section
4
Maintenance input open (disable)
Zero cycle done (ZeroFound = TRUE)
See "Reverse command after zero
cycle" section
Reverse command with Maintenance input = enable
If the Maintenance input is closed (enable) when the reverse command is sent the control system acts as if
the JogRev command had been set.
Reverse command before zero cycle
If the reverse command is sent before the incremental encoder and floor counter have been initialised, a
zero cycle is executed.
This command can ONLY be executed if the Self Study sequence has been successfully completed, and the
SelfStudyOk parameter is set to TRUE.
Reverse command after zero cycle
The reverse command following execution of the zero cycle, indicated by the ZeroFound= TRUE output,
functions as follows:
•On the rising edge of the command the lift starts moving towards floor 0. The following events may
occur during this movement:
-Nothing happens: the lift reaches floor 0 executing the normal deceleration ramp as set.
-Removal of the reverse command: the lift stops at any point after executing the normal set
deceleration ramp.
-The stop command becomes TRUE causing the lift to stop at the first possible floor.

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ADL300-EPCv2- User Guide Page 20 of 64
If on the rising edge of the reverse command the stop command is TRUE the lift moves to the next floor.
This command can ONLY be executed if the Self Study sequence has been successfully completed, and the
SelfStudyOk parameter is set to TRUE.
3.3.8 Forward command
The forward command has four operating modes:
Case
Cause
Action
Description
1
Maintenance input closed (enable)
JogFwd
Executes the jog forward command
See "Forward command with
Maintenance input = enable" section
2
Maintenance input open (disable)
Zero cycle not done (ZeroFound = FALSE)
Lift car stopped NOT at floor
See "Forward command before zero
cycle not from top floor" section
3
Maintenance input open (disable)
Zero cycle not done (ZeroFound = FALSE)
Lift car stopped at top floor 0
See "Forward command before zero
cycle from floor 0" section
4
Maintenance input open (disable)
Zero cycle done (ZeroFound = TRUE)
See "Forward command after zero
cycle" section
Forward command with Maintenance input = enable
If the maintenance input is closed (enable) when the forward command is sent the control system
acts as if the JogFwd command had been set.
Forward command before zero cycle
If the forward command is sent before the incremental encoder and floor counter have been
initialised, a zero cycle is executed.
This command can ONLY be executed if the Self Study sequence has been successfully completed,
and the SelfStudyOk parameter is set to TRUE.
Forward command after zero cycle
The forward command following execution of the zero cycle, indicated by the ZeroFound= TRUE
output, functions as follows:
•On the rising edge of the command the lift starts moving towards the top floor.
The following events may occur while the lift car is moving:
-Nothing happens: the lift reaches the top floor executing the normal deceleration
ramp as set.
-Removal of the forward command: the lift stops at any point after executing the
normal set deceleration ramp.
-The stop command becomes TRUE causing the lift to stop at the first possible floor.
If on the rising edge of the forward command the stop command is TRUE the lift moves to the next
floor.
This command can ONLY be executed if the Self Study sequence has been successfully completed,
and the SelfStudyOk parameter is set to TRUE.
3.3.9 Stop command
The stop command is active after the zero cycle (ZeroFound = TRUE), and only interacts with the forward
and reverse commands.
For more information please read the sections on the forward and reverse commands.