Nice a924 блок управления инструкция

Warnings:

! This manual has been especially written for use by qualified fitters. No information given in this manual can be considered as being of interest to end users! This manual refers to the A924 control unit and may not be used for different products. The A924 control unit has been designed to control the SUMO electromechanical actuator produced by Nice s.p.a.; any other use is considered improper and is consequently forbidden by current law. Do not install the unit before you have read all the instructions.

41 42 43 44

2.5) Description of connections

GB

In order to implement this solution, connect the photocells as shown in one of the figures 3A, 3B or 3C, and move Dip-Switch 7 to On (activate “Phototest”).

When movement is required, the unit first check that all the receivers involved give their consent, then it turns off the phototest output after which it checks that all the receivers signal the fact by removing their consent; the phototest output is finally reactivated and the

consent of all the receivers is verified once more. If a faulty device or a shorted cable, etc., is detected during the above sequence, the manoeuvre is not carried out.

2.7) Checking connections

After making connections perform a general test, i.e.:

•Power the control unit and immediately check whether terminals 1-2 are mains powered and terminals 15-16 (services output) are powered at approx. 28Vdc. If this is not the case, unplug the unit immediately and carefully check the connections and the voltage input.

•After about 2 seconds from switching on, the “OK” Led should show the control unit is working correctly by flashing regularly at 1 second intervals.

•Check that the led’s relative to the NC inputs (“Stop”, “Photo” and “Photo2”) are on (safety devices active) and that the led’s relative to the NO inputs are off (no command present); if this is not the case, check the connections of the various devices and make sure they are in good working order.

•Check that all the safety devices of the unit are in proper working order (emergency stop, photocells, pneumatic edges, etc.); each time they cut in, the relative “Stop”, “Photo” or “Photo2” led’s should turn off.

•Check the motor turns in the right direction, i.e.:

♦release the motor and check that the release led on the board is on

♦move the door manually so that it is free to move during the opening and closing manoeuvres;

♦block the motor again and check that the release led is off

♦press the “Close” button (ref. K of Fig. 1) and check that the door moves in the close direction

♦if the opening manoeuvre is performed, press again on the close button to stop the door from moving, unplug the machine and invert the two motor wires

♦regardless of the direction of movement, press the “Close” button again to stop the manoeuvre immediately

3)Programming

Once the connections have been successfully tested, the search for mechanical stops phase can begin.

This operation is important because the A924 control unit must measure the space covered by the motor, in terms of the number of encoder impulses, to move the door from the maximum close position (position 0) to the maximum open position (position 1).

Position 0 and position 1 act as reference points for all the other positions indicated on the graph in Fig 4.

3.1) Initial search for mechanical stops

The «Initial search for mechanical stops” procedure is automatically performed as the first manoeuvre after installation.

1.Release the motor and move the door manually so that it is free to move during the opening and closing manoeuvres; block the motor.

2.Briefly press the “Open” button (ref. I, Fig. 1) or the “Close” button (ref. K, Fig. 1) on the board or give a command impulse to the inputs and wait for the control unit to perform a slow closing manoeuvre to position 0, a slow opening manoeuvre to position 1 and a rapid closing manoeuvre to position 0.

N.B. If the first manoeuvre after the command is an opening manoeuvre, give another command to stop the procedure and invert motor polarity.

3.When the above procedure has finished, a mathematical operation is carried out to calculate position A (required opening) at a few centimetres from the maximum open position, position B (partial opening) at about 3/4 from position A, and the RA and RC positions required for slowing down.

4.The «Initial search» for the mechanical stops has terminated and the gear motor is now ready for use.

N.B. 1. If one of the safety devices cuts in or another command impulse is given during the «Initial search for mechanical stops», the door will immediately stop moving and the above operations will have to be repeated from the beginning.

3.2) Automatic search for mechanical stops

As an alternative to the “Initial search” the “Automatic search for the mechanical stops” procedure can be performed at any time. This procedure automatically searches for the mechanical stops (position 0 and position 1) in precisely the same was described in the initial search section.

1.Set the Dip Switches as follows:

2.Release the motor and move the door manually so that it is free to move during the opening and closing manoeuvres; block the motor.

3.Press the “Close” button (ref. K, Fig. 1) and wait for the control unit to perform a slow closing manoeuvre to position 0, a slow opening manoeuvre to position 1 and a rapid closing manoeuvre to position 0.

N.B. If the first manoeuvre after the command is an opening manoeuvre, give another command to stop the procedure and invert motor polarity.

4.Using the value of this position, a mathematical operation is carried out to calculate position A (required opening) at a few centimetres from the maximum open position, position B (partial opening) at about 3/4 from position A, and the RA and RC positions required for slowing down.

5.The «Automatic Search» for the mechanical stops has terminated and the gear motor is now ready for use.

N.B. 1. If one of the safety devices cuts in or another command impulse is given during the «Automatic search for mechanical stops», the door will immediately stop moving and the above operations will have to be repeated from the beginning.

3.3) Memorisation procedure

At the end of the programming sequences of some parameters described in the next few paragraphs, the phase «Memorisation procedure» will be seen several times. This operation is used to transfer the value of the parameter required to be programmed into the permanent memory of the control unit.

Table “C” Performing the memorisation procedure:

1.Press the “Memory” button (ref. J fig. 1) for at least 3 s, after 3 s the OK (ref. R, fig.1) led will flash quickly

2.Release the “Memory” button, the “OK” led will continue to flash quickly for another 3 s.

3.Within 3 s quickly press the “Open” and “Close” buttons (refs. I and K, fig. 1) together; when these two buttons are pressed

together, the ok led will switch off.

4.Release the two open and close buttons; the “Ok” led will light up for approx. 2 s as confirmation that the memorisation procedure of the selected parameter has terminated correctly

3.4) Manual programming of mechanical stops

2.Press the “Open” button (ref. I, Fig. 1) or “Close” button (ref. K, Fig. 1) on the board and hold it down until the required position is reached.

N.B. Press the “Memory” button (ref. J, Fig. 1) if acceleration is required.

3.When the position has been reached, release the buttons and perform the “Memorisation procedure” (paragraph 3.3)

N.B. 1. As an alternative to the manual programming of all the positions, just positions 0, A and 1 may be memorised while positions B, RA and RC can be automatically calculated by the control unit.

3.5) Programming the electric block position

When the ELB output is assigned an electric block type of function (see switch 8 in paragraph 5) the threshold over which the output switches off can be programmed.

Table “E” Programming electric block positions:

1.Set the dip switches as shown in the figure:

2.Press the “Open” button (ref. I, Fig. 1) or the “Close” button (ref. K, Fig. 1) until the required position is reached

3.6) Programming the pause time

When the automatic close function is selected, a timer is activated after an opening cycle which controls the Pause Time; after this has elapsed, a close manoeuvre is automatically activated. If this time has never been programmed, it is fixed by the control unit at 30 s, but the following procedure allows any value between 1 and 1023 s (approx. 17 minutes) to be programmed.

1.Set the dip switches as shown:

If more than one Dip Switch is moved to On, the selected pause time is equal to the sum of the pause times of the single dip switches;

3.Perform the “Memorisation procedure” (paragraph 3.3)

3.7) Deleting the memory

All the programmable parameters are recorded in a permanent memory which stores the information even during a power failure; it may be necessary to delete all the memorised data.

Table “G” Deleting the contents of the memory:

1.Set the Dip Switches as shown:

2.Perform the “memorisation procedure” (see paragraph 3.3) which in this case is used to confirm deletion.

N.B. When the memory is deleted it is as if the gear motor had never been installed and the door will therefore be unable to move normally; in this case the first command to reach the inputs or pressing the “Open” or “Close” buttons will immediately activate an «Initial Search for mechanical stops» procedure.

N.B. 1. This operation does not cancel the number of manoeuvres performed or the number of scheduled manoeuvres.

3.8) Adjustments

Following the programming phase the few adjustments that are vital for safe and correct operation of the automatic system must be made

3.8.2) Speed adjustment

In order to reduce the kinetic energy released following an impact with an obstacle, as well as adjusting the cut-in threshold of the current sensitivity device the speed of the door during normal operation can also be reduced.

Speed can be adjusted:

•in the “Man present” mode only with the motor stopped,

•in the “Semiautomatic” or “Automatic” mode either with motor stopped or while the door is moving (except for the acceleration and deceleration phases).

Table “H” Adjusting speed:

1.Press and hold down the “Memory” button (Ref. J, Fig. 1)

2.After a second…

♦press and hold down the “Close” button (ref. K, Fig. 1) to decrease speed, or

♦press and hold down the “Open” button (ref. I, Fig 1) to increase speed

3.As soon as the speed has reached the required value, release the buttons (the new speed is automatically memorised)

N.B. The adjustment system is effective until the min. or max. limit values corresponding to the speeds indicated in the motor instructions book are reached; when these limits are reached the “OK” led lights up and remains on when the maximum value has been reached and off when the minimum value has been reached.

4) Testing

! The automation system must be tested by qualified and expert staff who must establish what tests to perform according

to the relative risk.

Testing is the most important part of the whole installation phase. Each single component, e.g. the motor, emergency stop, photocells, etc., may require a specific test phase; please follow the procedures shown in the respective instructions manuals.

To test the A924 control unit, perform the following operations:

1.Set the Dip Switches as shown:

(all the functions deactivated and semiautomatic operation)

2.Press the “Open” button (ref. I, fig. 1) and check that:

•the flashing lamp activates

•an opening manoeuvre starts with the acceleration phase

•the door stops moving, preceded by a deceleration phase, when it reaches position A.

3.Press the “Close” button (ref. K, fig. 1) and check that:

•the flashing lamp activates

•a closing manoeuvre starts

•the door stops moving when it reaches position 0.

4.Perform an opening manoeuvre and check that the cut-in of a device connected to the:

•“Stop” input immediately stops the door moving

•“Photo” input has no effect

•“Photo2” input stops and inverts the manoeuvre

5.Perform a closing manoeuvre and check that the cut-in of a device connected to the:

•“Stop” input immediately stops the door moving

•“Photo” input stops and inverts the manoeuvre

•“Photo2” input has no effect

6.Engage a device connected to the:

•“Stop” input and check that no manoeuvre is performed when a command input is activated

•“Photo” input and check that no manoeuvre is performed when a command input causing a closing manoeuvre is activated

•“Photo2” input and check that no manoeuvre is performed when a command input causing an opening manoeuvre is activated

7.During both the opening and the closing manoeuvres, stop the door from moving by introducing an obstacle and check that the manoeuvre inverts before the force indicated by law is exceeded.

8.Check that the activation of the inputs (of connected) causes a step in the sequence

•for the “Step-by-Step” input: Open – Stop – Close –Stop,

•for the “Open” input: Open – Stop – Open –Stop,

•for the “Close” input: Close – Stop – Close –Stop,

•for the “Partial Open” input: Partial Open – Stop – Close –Stop,

5) Selectable functions

When dip switch programming is Off, the dip switch function allows various other functions to be selected, as shown below:

N.B. Naturally, if a Switch is «Off» its associated function is not activated.

5.1) Description of functions

GB

Man present Function

A movement is only made after a command is given. The Movement stops as soon as the command terminates or after a safety device triggers (“Stop”, “Photo” or “Photo2”) or the current sensitivity device cuts in. As soon as the movement stops, the command must be stopped before another movement can begin.

Semiautomatic and automatic function

In the «Semiautomatic» or “Automatic” functions, following a command impulse the whole movement is performed until the required position is reached. A second impulse on the input that began the movement will cause it to stop. If, instead of a impulse to a command input a continuous signal is maintained, a state of priority will be created in which the other command inputs are disabled (useful when connecting an opening timer, for example).

If the current sensitivity device or a photocell involved in the direction of movement (“Photo” when closing, “Photo2” when opening) cuts in during a manoeuvre, the direction of movement will be inverted.

In the “Automatic” operating mode, an opening manoeuvre is followed by a pause and then a closing manoeuvre.

If “Photo” triggers during the pause, the timer will be reset with a new pause time; if, on the other hand, the Stop input triggers during the pause, the closing function will be cancelled and the system will Stop.

Always close function

Automatically starts a closing manoeuvre, preceded by 5 s of pre-flashing, if a door is found to be open when power is resumed.

Condominium function

In the “Condominium” function, an opening manoeuvre cannot be interrupted by command impulses except for those triggering a closing manoeuvre. During a closing manoeuvre, a new command pulse will stop the gate and reverse the direction of movement in order to open the gate.

Pre-flashing

Following a command impulse, the flashing lamp is triggered first and then, 5 seconds later (2 seconds later in the manual mode) the manoeuvre begins.

Close again 5 s after Photo in the automatic mode or close again after Photo in the semiautomatic mode

If Photo triggers in the automatic mode during an opening or closing manoeuvre the pause time is reduced to 5 s regardless of the programmed pause time. If Photo triggers in the semiautomatic mode during a closing manoeuvre the automatic closing manoeuvre is activated with the programmed pause time.

Photo also in the opening manoeuvre

With this function, if the “Photo” safety device triggers, movement will also be interrupted in the opening manoeuvre; if the “Semiautomatic” or “Automatic” functions are selected, the opening movement will continue as soon as “Photo” disengages.

Activate Phototest

This function tests the photoelectric cells before each manoeuvre begins, thereby increasing system safety.

For further details, please consult paragraph 2.6 Phototest

Suction pad/electrical block

This function assigns the following functions to the Elb output (terminals 11 and 12):

•electrical block (Switch 8 Off) — the output activates during the opening manoeuvre starting from the closed door and remains active until the door exceeds the electrical block position (programmable, see paragraph 3.5);

•suction pad (Switch 8 On) – the output activates at the end of the closing manoeuvre and remains active for the whole time the door is closed.

Traffic light in the one way mode

In this mode, the SCA output is active when the door is open and remains on during the opening manoeuvre while it switches off during the closing manoeuvre and when the door is closed. In this way, a green light can be fitted to the output that, when on, indicates the road is clear.

Traffic light in the two way mode

When switch 10 is On, regardless of the position of switch 9, the “traffic light in the two way” mode is activated; the following changes take place in the control unit: the “Open” input becomes “Step-by-Step2”, while the two “Courtesy light” (COR) and “Door open led” (SCA) outputs become Green Light in one direction and Green Light in the other, as shown in Fig. 5. A different opening command is given for each direction of movement: “Step-by-Step” (PP) for entering and “Step-by-Step2” (PP2) for exiting; two traffic lights are therefore installed with Red and Green signals connected to the SCA and COR outputs.

The two SCA and COR outputs are normally off and, as a result, so are the traffic lights; when an open command is given with PP, the opening manoeuvre begins while SCA activates at the same time to switch on the green entry light and the red exit light. If instead the open command is given by PP2, the COR output activates the green exit light and the red entry light. The light will remain on during the whole opening phase and the pause phase, if any; during the closing phase, instead, the green and red lights are activated together to indicate there is no longer transit priority.

The two outputs can directly control small 24Vdc lamps for a maximum total of 10W per output. If more powerful lamps are required, it is best to use relays piloted by the control unit outputs that in turn command the traffic lights.

6) Servicing

The control unit is an electronic component and therefore needs no particular maintenance; however, the board and the relative connected devices should be periodically checked (at least every 6 months) by carrying out the whole testing procedure (see Chap. 4).

In order to plan the maintenance programme for the whole system, a manoeuvre counter has been fitted to the control unit which increases its value after every opening manoeuvre. The Maintenance (MAN) led flashes to signal this increase. The value of the manoeuvre counter is constantly compared with an alarm threshold (programmable by the fitter) and the warning threshold (automatically set to the alarm threshold less about 6%). When the number of manoeuvres performed exceeds the warning threshold, the maintenance led only flashes during manoeuvres, while if the alarm threshold is exceeded it continues to flash (with the motor stopped and moving) in order to signal that maintenance must be performed.

The alarm threshold can be programmed from a minimum value of 200 to a maximum value of 50800 manoeuvres in multiples of 200.

Tabella “I” Programming the alarm threshold

1.Set the dip switches as shown

1 2 3 4 5 6 7 8 9 10 11 12

4.Perform the “Memorisation procedure” (see paragraph 3.3)

After programming the alarm threshold, visualise it in order to check the operation was performed correctly.

1.Set the dip switches as shown:

2.Move the Dip Switch 1 to On (2,3,4 and 5 to Off), count the number of times the ok led flashes and write the number on a piece of paper (if it is 10, write 0)

3.Repeat the operation with Dip Switches 2, 3, 4 and 5

4.Reconstruct the number of manoeuvres as shown in one of the following two examples