PROFI CAR 403 and 707 Operating instructions Before operating the transmitter, please select the language (see 9.
Dear customer, dear fellow modeller, we are delighted that you have decided to purchase a MULTIPLEX radio control system. The „PROFI CAR“ is the first „pistol-grip“ transmitter designed and developed by MULTIPLEX. Ergonomic efficiency and user-friendliness were our top priority during the development process.
Contents A quick look at the transmitter Contents Safety System facilities The transmitter controls in detail The „instrument panel“ (screen) The principle Switching on for the first time 1.1. Charging the transmitter battery (maximum charge current 1 A) 1.2. Charging the receiver battery 1.3. Fitting the transmitter crystal 1.4. Adjusting the trigger loop 1.5. Testing the transmitter 2. Short and to the point 2.1. Selecting the vehicle TYPE 2.2.
6. Timers and lap counters º 00 6.1. Timer mode 6.2. Lap time memory 6.3. Setting the nominal time T-NOM 6.4. Setting the race duration (timer mode 3 only 6.4.1. Race duration by laps 6.4.2. Race duration by time 6.5. Checking the transmitter’s operating time 6.6. Erasing the timer ERASE 7. Model memories 1 7.1. Switching to a different model memory 7.2. Copying 7.3. Entering the model name 7.4. Erasing 7.5. Reverting to the PREVious state 8. Driving trucks 8.1. Selecting the model type 2+5 CH (truck) 8.2.
Safety Radio-controlled models are not toys! You can make a major contribution to safety when operating your models by acting responsibly and handling your radio control system and model with due care. v Check the electrical and mechanical connections in the model at regular intervals. v Check all moving parts regularly: they must be free to move, and must not exhibit undue lost motion. Carry out regular range checks (see „Range testing“).
System facilities 403 Model memories 6 Copy, reset, erase, enter model name Steering SLOW, separate for entering and exiting turns ü EXPOnential steering curve (progressive / degressive) ü Variable CENTRE and TRAVEL ü Variable steering trim increment ü Second steering servo Throttle Automatic start system ü EXPOnential throttle curve (progressive / degressive) ü Separate THROTTLE / BRAKE servos 5-point throttle curve ü Traction-Control TC Brake Variable engage point and lock point ü EXPOnential brake curve
The transmitter controls in detail The three pictures below illustrate the essential controls.
The „instrument panel“ (screen) The picture below shows everything which the screen can display. What you actually see at any one time depends on what you are doing: whether timers are active, whether you are currently programming the transmitter, which type of vehicle you have selected, etc. A few examples are shown on this page.
Special case: battery alarm with timer active If one of the timer modes is active and the battery voltage falls to the alarm threshold, the screen displays the current lap time and the battery voltage and BATT warning, alternating at 2-second intervals. When you are changing settings G-CURV When you are changing the transmitter settings, the first text FT 87 line shows the selected menu point (in our example: the throttle curve).
When you have found the menu point you want, you can continue by using the digiadjustor and the handle button. HANDLE BUTTON (HB) Select curve points Confirm erasure, ... DIGI-ADJUSTOR (DA) Set values (travels, times, ...) Select sub-menu points (if there is nothing to adjust) Press any menu button (except the one you last used) to return to the operating display. When the operating display is on the screen (i.e.
Switching on for the first time 1.1. Charging the transmitter battery (maximum charge current 1 A) First connect the charge lead (Order No. 12 5023) to the battery charger, then connect the charge lead to the transmitter. Charging the battery – important: • Automatic battery fuse The battery of your PROFI CAR features an integral thermal fuse which protects the battery from excessive currents if a short-circuit should occur.
1.5. Testing the transmitter Now you can switch on the transmitter and a receiving system and generally try things out. All you need is a receiver, two servos connected to channels 1 and 2, and a battery. If you prefer to use an existing model car, make sure that the steering servo is connected to channel 1 and the throttle/brake servo to channel 2. Now you can continue with Section 2. 2.
2.1. Selecting the vehicle TYPE Selecting the vehicle TYPE determines the channels which are to be used to control your model. The PROFI CAR 403 offers the following options. TYPE Steering Throttle + Brake Special features EXPO on THROTTLE Switched channel for servo 3 STAND e.g.
This is the procedure: TYPE Search point for menu STAND 2+1CH 4CH 5CH 2+5CH Select type Confirm and terminate 2.2. X Confirm. Beep Setting the servo norm, direction of rotation, travels and centre If you select STAND or 2+1 CH as the vehicle type, all you need to do is set up the servos: servo 1 „STEERING“ and servo 2 „THROTTLE/BRAKE“.
2.3. Adjusting STEERING L Steering settings: CENTR CENTR Servo centre (straight ahead) Minimum steering travel, TRAV DUAL SLOW EXPO - 50% to + 50% 30% to 100% if set using digi-adjustor Auto Dual Rates DE = delay 0 to 5 RT = reduced travel Retards steering movements Enter/exit turn separately Switch off with „DE = 0“ 50% to 100% 0.0 sec to 1.
This is the procedure for setting the separate points on the throttle curve: § § § Search for the menu point T-CURV (throttle curve) using the A button Search for the point to be adjusted using the handle button G Set the value using the digi-adjustor § Press any button (except A ) to return to the operating display 2.5. Adjusting BRAKE A The settings for the brake are the same for all vehicle types. EXPO is also available in all vehicle types.
3. More about steering L The PROFI CAR provides the following facilities for adjusting the steering: • Servo centre and servo travel {3.1} (T menu, menu point „S-TRAV“, servo 1) These facilities allow you to adjust the servo to suit the mechanical set-up in your model, and at the same time set the maximum steering travel and centre setting for accurate straight running. • Steering CENTRE {3.3} (L menu, menu point „CENTRE“) In this part of the menu you can correct the car’s straight running.
The diagram on the right shows an example of the settings you can change in the „S-TRAV“ menu. The stated angles (0° / 45°) show the servo’s maximum physical travel. The adjustment points „L L “ and „Œ Œ “ indicate the maximum travel of the steering servo which the user has set. To adjust either of these points you have to turn the steering wheel in the corresponding direction. When the servo is at the „• • “ point you can adjust the servo setting for „straight“.
3.2. Adjusting the steering trim („T “ menu) The steering is trimmed using the trim rocker A. You can easily find this rocker „blind“ because its shape and fluted surface differentiate it from the other rockers You can use the steering trim to adjust the centre of the steering servo by 7 increments in each direction. Each step offsets the centre by at least 1% (fine) and at most 10% (coarse). You can select the size of the trim increments in the menu point STEP of the „*“ menu. The default setting is 2%.
Accepting the trim is a practical and useful facility. For example, if you suffer a „slight crash“ which knocks the basic setting out, you can quickly and simply regain the full trim range. The diagram on the right shows the screen display before and after accepting the trim setting. On the left the centre is offset by 3 steps, while on the right the setting has been accepted, and the trim display is back to centre.
3.5. SLOW SLOW retards the movement of the steering servo, and reduces the tendency for the steering system to oscillate when the load on the wheels is light, and the steering movements are rapid. The delay time is variable separately for „entering the turn“ and „exiting the turn“ (returning to straight running), in both cases within the range 0.1 to 1.0 sec. If you select the vehicle TYPE „5 CH“, with two steering servos, SLOW affects both servos simultaneously, as you would expect.
3.7.1. Reduced Travel RT at full throttle DUAL Search for the menu point „DUAL“ using the L RT 57 button % § Search for RT with the handle button G § Use the digi-adjustor to set the value you want within the range 50% to 100% (example: 57%). Finally you must set the delay DE (see next section) to a value within the range 1 to 5. § 3.7.2. Auto Dual Rate delay The delay can be set to any of 5 values. Set DE = 0 to switch the function off.
4. More about THROTTLE A The PROFI CAR also has plenty of interesting facilities to offer for throttle: v v 2-point throttle curve with EXPO, or 5-point throttle curve Automatic Start v v TC (traction control) PROFI CAR 707 only! Separate throttle servo PROFI CAR 707 only! To help you understand: The diagram on the right shows which servo settings are assigned to the individual points on the throttle-brake curve.
This is the procedure: A G -CURV Search for menu point Search for point on throttle curve e.g.: Initial Throttle 35% ID Idle IT Initial Throttle FT Full Throttle EXP EXPO Set the value 4.2. G-CURV IT 35 % 5-point throttle curve The main advantage of the 5-point throttle curve is to set up a response curve which compensates for the characteristics of the carburettor of an internal combustion engine.
4.3. Automatic Start The automatic start facility triggers a series of special functions once only at the start of the race. The automatic start function must first be activated in the * menu. It can be initiated (triggered) in two ways, depending on the vehicle TYPE you have selected: either by the action of opening the throttle for the first time, or by pressing the handle button at the same time.
§ § § Proceed to „T-CURV“ using the A button. Search for the „IT+“ value using the handle button G. Set the value you want using the digi-adjustor. In the example shown on the right the set value is 16%. G-CURV IT+ 16 % If you move back to the operating display by pressing any menu button (except A ), the top line of the screen will alternate between the model name and „START“. ' TIP ! The automatic start function can only be triggered when the operating display is on the screen 4.3.2.
4.4. TC = traction control (PROFI CAR 707 only) Traction Control is a variant of the SLOW function applied to THROTTLE, in this case only working when you open the throttle. When you close the throttle, the servo (or speed controller) responds normally, i.e. without any delay. Traction Control prevents the wheels spinning during acceleration on a smooth track. In the case of electric cars TC reduces current drain, because the motor is controlled more „gently“.
5. More about BRAKE The PROFI CAR offers the following brake functions: v 2-point brake curve with EXPO {see 5.1} v v ABS Advanced Braking System (PROFI CAR 707 only) Second brake servo (PROFI CAR 707 only) To help you understand: The diagram on the right shows the servo positions which correspond to the individual points on the throttle-brake curve. Between the engage point EP and the locking point LP the servo responds proportionally to the movement of the trigger.
This is the procedure: A BRAKE1 BRAKE1 Search for menu point Search for point on brake curve Example: Engage point 27% BRAKE1 EP 27 % IDL Idle -50% to +50% EP Engage point OFF or Set value 1 – 100% LP Lock Pint EXP EXPO 0 – 100% ± 100% ! If you are using a combined throttle/brake servo (all vehicle types except „5 CH“), the idle point „IDL“ exists on the throttle curve as well as the brake curve 5.2.
The current trim setting is indicated on the screen by a vertical bar. In the example on the right the lock point of the first brake servo has been offset in the direction of „stronger braking effect“ by 3 trim increments. T STEP Search for menu point Select parameter LP = Lock Point Set size of trim increment STEP LP 78 % 1 – 10% ' TIP ! If you have a second brake servo (vehicle type „5 CH“), the increment size you select applies to both trim rockers (B and D). 5.3.
5.4. Braking with more than one servo (PROFI CAR 707 only) If you have chosen the „4 CH“ or „5 CH“ vehicle type, you can use two brake servos; this allows you to control the brakes for the front and rear axles separately.
The lock points for the two brake servos can be trimmed using the rockers B and D (see picture).
Timers and lap counters º 00 6. The PROFI CAR (403 and 707) offers the following facilities for timing and lap counting: v v v v v Operating time This timer can be reset to zero in the „T “ menu. It is used to record the operating time of the transmitter battery or the transmitter itself. This timer always runs when the transmitter is switched on. Nominal lap time For practising you can set a „nominal time“ (target time) for a single lap.
The timer mode can be set differently for each model memory. This is the procedure: § § Search for the menu point T-MODE using º Select the mode using the digi-adjustor Press any menu button (except º ) to return to the operating display. 6.2. Lap time memory The transmitter can store up to 50 lap times and call them up again. When a new lap is completed, all the lap times already recorded are shifted back by one place.
6.3. Setting the nominal time T-NOM You can enter a nominal time T-NOM for a lap, so that you can check your practice times against the set value. The maximum variable time is 1 min. 59.9 sec.
The transmitter can only produce this signal if your car has completed at least six laps. The transmitter computes the average time for the last six laps, then calculates whether a further full lap can be completed in the time remaining to the end of the race. If not, the 3-beep signal is given. When you next press the handle button the transmitter stops the timing process.
Model memories 1 7. The model memories are used to store all the settings which you have entered for a particular vehicle. These settings include: v v v Modulation (FM/AM) Servo direction, signal format, centre, travels Settings for throttle, brake and steering v Timer settings v Trim settings The information in the active model memory is updated when you switch off the transmitter or switch to a different memory.
7.3. Entering the model name Six letters, numbers or symbols, are available for the model name. The following characters can be used: ABCDEFGHIJKLMNOPQRSTUVWXYZ-0123456789 § § Search for the menu point NAME using the 1 button The first character flashes, and can be changed using NAME the digi-adjustor. MIRAGE § Press the handle button G to move on to the next character, and from the last back to the first again. Press any menu button (except 1) to return to the operating display. 7.4.
8. Driving trucks An outstanding feature of the PROFI CAR is that you can use it to control complex trucks which feature auxiliary functions. The vehicle type „2+5 CH“ makes available a further 5 auxiliary channels in addition to the two primary channels of steering and throttle/brake. The additional channels are controlled by means of the trim rockers (except for A - steering trim), the digi-adjustor and the handle button.
§ Control mode „3ST“ (3 stages) In this mode the servo switches between centre and one end-point when you briefly press the same side of the associated rocker. If you press the other side of the rocker briefly, the servo switches immediately to the opposite end-point. The digi-adjustor controls servo 6 in a similar way. We recommend that you simply try out the different control modes with a servo. Special case: channel 7 is controlled by the handle button G.
8.3. Adjusting travel and centre of the auxiliary channels (menu point „S-TRAV“) The steering wheel is used to select the servo position to be adjusted for the auxiliary channels. § Search for the menu point „S-TRAV“ using the „T “ button. § Search for the servo you wish to adjust using the handle button G. § Use the steering wheel to select left (L), centre (•) or right (Œ) § Change the setting using the digi-adjustor. Press any menu button (except 8.4. T ) to return to the operating display.
This is the procedure: § § Search for the menu point „DEADB“ using the „T “ button. Adjust the deadband with the digi-adjustor. Press any menu button (except 9.2. T ) to return to the operating display. Switching between AM and FM („T “ menu, AM-FM) One absolute innovation on the PROFI CAR system is the ability to use the transmitter with AM (amplitude modulation) receivers as well as FM receivers (frequency modulation) without changing the RF module.
This is the procedure: § § Search for the menu point „ALARM“ using the „T “ button. Set the alarm threshold to any value in the range 6.80 V to 7.20 V in increments of 0.05 V. ALARM 6.80V BATT Press any menu button (except T ) to return to the operating display. 10.
11. The system in use 11.1. Post Office Regulations for the U.K. Radio controlled models are of two types - those which operate on the ground or on water, known as „surface“ models, and those which operate in the air. The first group includes model cars, trucks and buggies, and also model boats of all types. The second encompasses fixed-wing model aircraft and rotary-wing machines (mainly helicopters). The frequency bands available for radio controlled models are 26.960 to 27.280 MHz General use, 40.
v The receiver aerial may be damaged, too short (less than 40 cm) or badly positioned. v Ambient conditions may be poor (damp track surface, metal fences shielding the signal, etc.). If the range is not sufficient with the aerial collapsed, and you cannot locate the source of the problem as described above, try the following alternative test: extend the transmitter aerial fully, then repeat the check as described above. If the effective range is 1.
Specification, system characteristics PROFI CAR 403 Weight including battery Dimensions (W x H x D) Power supply Current consumption – including RF module – excluding RF module Operating time with RF module – 600 mAh NC – 1000 mAh NC – 1500 mAh NiMH Integral thermal fuse in battery Battery alarm – Variable threshold Operating temperature range Switchable modulation Model memories Channels (depending vehicle type) Steering functions Steering trim accept Brake functions Throttle functions Traction-Control ABS
Menu summary for the PROFI CAR 403 and 707 Menu points with dark background: PROFI CAR 707 only A L T -CURV CENTRE BRAKE1 TRAVEL BRAKE2 DUAL ABS SLOW TC EXPO Adjust throttle curve Brake curve 1 (rear) Brake curve 2 (front) Threshold and delay for Auto Dual Rates Advanced Braking Separate for enter turn and System exit turn Traction Control Progressive and degressive º T -MODE OPTIME Check operating time ERASE Operating time, laps, nominal time, duration TIMES Check times in lap memory
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