MTC-2 and ACU User Manual
Contents
1. Pivot turn begins when right stick move halfway left or right Pivot turn is disabled when dip switch 3 is switched off Fig 1 Brake Function Forward J x Brake t stick move fast O Reverse O Brake J x stick move fast 1 J Motors stops instantly when left stick moves fast backward After brake left stick must move back to center to restart track motion Brake action however is not enabled at very low speed Copyright 2013 www 35rctank com Page 6 MTC 2 and A r Manual V4 Turret Motion Control r amp 5 Turret Hin Gun y vir Rotation y Firing Fat 74 gt Machine Fast 4 Gun z r Gun T zZ Elevation A Firing coir es Slow To trigger gun firing move right stick quickly from middle to top Tank will recoil during gun fire After gun fire move stick back to middle to resume operation To trigger machine gun firing move right stick quickly from middle to bottom Machine gun sound continuous when stick keep at bottom Move stick back to middle to resume operation Both sound effects can be disabled by jumper settings Fig 1 Engine Sound Control Engine sound will be generated when ACU is connected and J1 installed Engine start trigger by first throttle Running when tank in running engine speed changes according to speed Engine stop with throttle at center move turning stick quickly to left or right extreme position for 5 sec Alternatively engine will stops in 5 sec a2. ia MF machine gun fire disabled V RED GND top GND top GND top GND BLACK BROWN ACU Connectors MF machine gun fire led connector gnd on top GF gun fire led connector gnd on top p SP speaker connector gnd on top PWM WHITE ORANGE SMT upper reserved ROT upper turret HEHE EE wee rotation servo connector OL EE ELV lower gun elevation Z IRAKERE REA servo connector i gt lower gun recoil servo connector Fig 1 MTC 2 and ACU auxiliary control unit Copyright 2013 www 35rctank com Page 2 MTC 2 and A r Manual V4 MTC 2 parts 1 2 Battery connector 4 8 7 4V battery input DO NOT REVERSE INPUT POLARITY TO AVOID DAMAGE Remove battery when not in use for long time RC receiver connectors for 4 CH receivers connect all connectors No 1 4 For 2 CH receivers connect connectors No 1 and 2 only CH5 is used for GSU on off if GSU is connected Led indicator multi purpose indicator When power on it lights up 1 sec and then blinks slowly if it do not receive RC signal It lights up continuously when signal is received from the RC connectors It will also flash during the setup process See setup procedures for details Setup button setup MTC 2 for a particular transmitter It also setup the gun reload position if R jumper is on See setup procedures for details Dip switch 1 gun turret type Switched on fo
3. A r Manual V4 Notes 1 Lipo battery can be dangerous if not use properly always use a dedicated Lipo charger do not short circuit to avoid explosion follow all safety precautions of your Lipo and chargers 2 DO NOT REVERSE BATTERY POLARITY TO AVOID DAMAGE 3 Disconnect battery when not in use for long time 4 To avoid interference solder 1uf capacitor between power leads and 0 1uf capacitors between motor case and power leads 5 For 2 CH receivers connect CH1 and CH2 6 CH5 is used to turn GSU on off See GSU manual for details 7 Turret rotation servo must be modified to continuous rotation See technical tips in the web page for details Battery pack 1 2 Cell Lipo 280 4 6 Cell NiMH R 4 8 7 2V i D Note1 2 3 i I 0 1uF capacitors O Note4 1uF capacitor Note4 Power switch 2 5CH Receiver Note5 6 B R J J abe SPEKTRUM AR6100e MTC 2 Turret rotation servo Note7 resistor _lttt Machine gun flash led EE ACU AN F Gun flash led Ei me Gun elevation servo e Gun recoil servo MF GF SP top cable GND 80hm 0 5W speaker Fig 2 Typical MTC 2 and ACU connection Copyright 2013 www 35rctank com Page 4 MTC 2 and A r Manual V4 Transmitter Stick Modes The stick mode of MTC 2 is shown in Fig 3 If your transmitter has a different stick mode change the connector numbers accordingly C CH1 t
4. MTC 2 and A r Manual V4 MTC 2 can work alone as a twin motor ECS electronic speed controller for RC tanks When the ACU auxiliary control unit is connected it can also control turret rotation gun elevation gun firing machine gun firing and engine sounds When the GSU gun stabilize unit is connected ACU can stabilize gun elevation and turret rotation This manual explains operations of MTC 2 and ACU For GSU operation see separate GSU manual MTC 2 highlight features MTC 2 can work alone as a twin motor ESC with 8A continuous current for 130 to 280 size motors Continuous speed changes with forward reverse left right and pivot turn ECS brake function motors can stop instantly 5 4 or 2 channel receiver options 2 channel for standalone ESC 4 channel for ECS and turret control CH 5 is used for optional GSU on off Simple one button setup procedure Battery options 1 2 Cell Lipo 3 7 7 4V 4 6 Cell NiMH 4 8 7 2V Auto shutdown at low battery Dimension PCB 38 x 25 x 20mm 1 5 x 1 x 0 8 ACU highlight features Three servo ports for turret rotation gun elevation and gun barrel recoil Support optional GSU gun stabilize unit See separate GSU manual for details Main gun led and machine gun led flashes 22KHz high quality digital sound effects including main gun sound machine gun sound and engine sound Engine sound includes engine start stop idle and running Engine sound changes a
5. ccording to speed Engine sound can be turned off by jumper Turret rotation can be replaced by gun left right motion by jumper setting Gun return to reload position after fire can be disabled by jumper ACU size 38 x 25 x 12mm 1 5 x1 x0 5 Contents MTC 2 parts ACU parts Typical MTC 2 and ACU connections Transmitter Stick Modes Setup Procedures of MTC 2 Setup Gun Reload Position Reset to Factory Settings Track Motion Control Brake Function Turret Motion Control Engine Sound Control Input Voltage Troubleshooting NNN ODO OO fF W W Copyright 2013 www 35rctank com Page 1 MTC 2 and A r Manual V4 RC receiver connectors Power switch ON mininin MTC 2 switch settings L 4 shutdown voltage setting on shutdown at 6V off shutdown at 3 3V 3 turn mode on pivot turn enabled off pivot turn disabled 2 gun auto reload on gun return to reload position after fire off auto reload disabled 1 gun turret type on 360deg turret off fixed turret ACU eee cr speaker volume ACU Jumper settings Os adjust E_E U1 engine sound on off with jumper engine sound on no jumper engine sound off J2 reserved SMK ROT W REC mi ELV E MF W GF ill SP W m E_E GF gunfire enabled n E a MF machine gun fire enabled E_E m GF gunfire disabled
6. fter transmitter is turned off Throttle Turn To stop engine keep throttle at centre move turning stick quickly to left or right extreme for 5 sec Engine stop by stick motion Input Voltage MTC 2 is designed to work at 4 8 7 4V 4 6 cell 1 2V NiMH or 2 cell Lipo battery To avoid over discharge of Lipo battery it will shutdown automatically when input voltage is too low After shutdown the motors will stop and led indicator flashes slowly Also the ACU beeps if connected Dip switch 4 determines the shutdown voltage When switched on the shutdown voltage is set at 6V It is suitable for 2 cell Lipo When switched off the shutdown voltage is set at 3 3V It is suitable for NiMH and 1C Lipo When using 4 cell NiMH or 1C Lipo operation becomes unstable when input voltage drops below 4V This may happens before auto shutdown and you should replace the battery When using Lipo battery follow all safety precautions and always disconnect battery after use Copyright 2013 www 35rctank com Page 7 Troubleshooting MTC 2 and A Symptom Cause Resolution Led blinks when tank moves Tank out of control Motor interference Low battery Add noise filtering capacitors Fig 2 Keep antenna away from motors cables Prevent loose metal contacts Motor fault replace motor Replace or recharge battery Led indicator not stable or turns off Antenna problems Check antenna length Keep an
7. r turret with 360 rotation In this mode a servo modified for continuous rotation is connected to ROT port to control turret rotation soeed When switched off a standard servo is connected to ROT port to control the left right gun movement Dip switch 2 gun auto reload Switched on to enable gun return to reload position after fire Dip switch 3 turn mode Switched on to enable pivot turning of tracks Dip switch 4 shutdown voltage setting Switched on to set shutdown voltage at 6V This is suitable for 2 Cell Li po battery Switched off to set shutdown voltage at 3 3V This is suitable for 1 Cell Li po or NiMH battery See the input voltage section for more details ACU parts 9 10 11 12 13 14 15 16 17 ROT port turret rotation servo port A continuous rotation servo is connected here to control turret rotation For tanks with fixed turret remove the G jumper to set this port to left right gun movement by standard servo ELV port gun elevation servo port REC port gun recoil servo port Speaker volume adjust trimmer to change speaker volume SP port speaker port for driving 80hm 1W speaker GF port gun flash led port MF port machine gun flash led port J1 jumper remove jumper to turn off engine sounds GF and MG jumpers for enable disable of gun fire and machine gun fire See Fig 1 for jumper settings Copyright 2013 www 35rctank com Page 3 MTC 2 and
8. rack turning CH2 track speed CHS gun elevation 4 and firing C gt CH4 turret rotation Fig 3 Stick modes of MTC 2 Setup Procedures of MTC 2 When using MTC 2 for the first time or when you change the transmitter you must perform the setup procedures to store the transmitter characteristic in MTC 2 To avoid unintended track motion disconnected motors or remove tracks during setup Step 1 Power on the transmitter Hi or The led indicator will light up With all sticks and trimmers at centre bd press the seup button once The e led indicator will start flash Step 2 Move both sticks to four Led extreme positions slowly The Indicator sequence of move is not important Vs s Step 3 Press setup button again ao Led indicator will stop flash The setup procedures is completed Copyright 2013 www 35rctank com Page 5 MTC 2 and A r Manual V4 Setup Gun Reload Position When dip switch 2 is on gun will return to reload position after gun fire To setup the gun reload position move gun to the desired reload position and then press the setup button You can go through the setup process as usual or you can press the setup button at once to end setup Reset to Factory Settings To reset to factory settings press and hold the setup button until it stop flash MTC 2 is then reset Track Motion Control HE 6 Po A o w S tom e e he a fo eo Ja 2 Pivot gt 9 Turn CCW D
9. tenna in vertical position Keep antenna away from motors cables Led indicator dims when tank moves Low battery Replace or recharge battery Cannot trigger main gun machine gun Improper setup Wrong jumper setting Do setup again Check GF MF jumpers Copyright 2013 www 35rctank com Page 8 r_Man
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