ZTW Shark G2 Series ESC User Manual

Important Warnings

• ZTW is not responsible for your use of this product, or any damage or injuries you may cause or sustain as a result of its usage.
• Always place safety as priority when you use the product.
• An electric motor that is connected with a battery pack and ESC may start unexpectedly and cause serious danger. Always treat them with enough respect.
• We recommend you to remove the propeller when you are working on the plane that has a power source connected.
• Observe all local laws when you fly an RC airplane.
• Never fly over others or near crowds.

Key Features

• Adopting new generation craft on the MOSFET, low heat generation, withstand large current instantly, and high reliability.
• Adopting a high-performance 32-bit microprocessor, stronger computing ability, and faster running speed.
• The ESC is waterproof and glued, and the flat water-cooling design ensures efficient heat dissipation.
• Super smooth start-up and accurate throttle linearity make the ESC suitable for all kinds of RC boat models.
• The ESC has two running modes for different applications: "Forward Only" and "Forward and Backward".
• Higher driving efficiency and more energy-saving.
• Adjustable SBEC 5V/6V output voltage provides more powerful power to the servo.
• Multiple protections: start-up, over-heat, low-voltage cutoff, signal loss, phase loss.
• Support high RPM motors, and compatible with most motors in the market.
• Support programming via Phone App or LCD program card, easier and more convenient operation (Extra ZTW App adapter or LCD program card needed.)

Specifications

Wires Connection

The speed controller can be connected to the motor by soldering directly or with high-quality connectors. Always use new connectors, which should be soldered carefully to the cables and insulated with heat shrink tube. The maximum length of the battery pack wires shall be within 6 inches.

• Solder controller to the motor wires.
• Solder appropriate connectors to the battery wires.
• Insulate all solder connectors with heat shrink tubes.
• Plug the "JR" connector into the receiver throttle channel.
• Controller Red and Black wires connect to battery pack Red and Black wires respectively.

Diagram showing ESC connected to Motor and Receiver:

ESC --- Throttle Signal Wire --- Receiver

ESC --- Motor

Battery --- ESC

Throttle Calibration

Important: Please perform throttle calibration for the first time using the ESC!

Throttle calibration by transmitter stick:

1. Turn on the transmitter, move the throttle stick to the top position.
2. Connect the battery pack to the ESC and wait for about 2 seconds.
3. The motor will beep twice.
4. Moving the throttle stick to the bottom position in 3 seconds.
5. The motor will emit "Beep---Beep", means the ESC is ready to work.

Throttle calibration by pistol transmitter:

1. Turn on the transmitter, move the throttle stick to the bottom position.
2. Connect the battery pack to the ESC and wait for about 2 seconds.
3. The motor will beep twice.
4. Moving the throttle stick to the top position in 3 seconds.
5. The motor will emit "Beep---Beep", means the ESC is ready to work.

Note: When the motor emits "Beep---Beep", it means the ESC is ready to work. The motor will beep several sounds, the number of sounds indicates the amount of battery cells.

Programming Mode and Items

Entering the programming mode:

1. Turn on the transmitter, move the throttle stick to the top position.
2. Connect the battery pack to the ESC.
3. Wait for 2 seconds, the motor will emit a special tone like "beep-beep beep".
4. Wait for another 3 seconds, the motor will emit a special tone like "123", which means program mode has been entered.

Programmable items and their tones:

• 1). "beep" (1 short tone): Running Mode (Fwd. Only / Fwd. & Bwd)
• 2). "beep.beep" (2 short tones): Brake Type (OFF / Soft / Mid / Hard)
• 3). "beep.beep.beep" (3 short tones): Motor Timing (Auto / Low / Mid / High)
• 4). "beep.beep.beep.beep" (4 short tones): Motor Rotation (CW / CCW)
• 5). "beep--" (1 long tone): SR Function (ON / OFF)
• 6). "beep--.beep" (1 long 1 short): Battery Cells (Auto / 2S / 3S / 4S / 5S / 6S)
• 7). "beep--.beep.beep" (1 long 2 short): Low Voltage Cutoff Threshold (OFF / NIMH50% / NIMH60% / 3.0V / 3.2V / 3.4V / 3.6V)
• 8). "beep--.beep.beep.beep" (1 long 3 short): Low Voltage Cutoff Type (Reduce Power / Cut Off Power)
• 9). "beep--.beep.beep.beep.beep" (1 long 4 short): BEC Voltage (5V / 6V)
• 10). "beep--beep--" (2 long tones): Acceleration (Normal / Soft)
• 11). "beep--beep--.beep" (2 long 1 short): Restore Factory Default Sets

Note: 1 long "beep--" = 5 short "beep". The value marked with "*" is the default setting.

Set item value:

Moving the throttle stick to the bottom position within 2 seconds after hearing one of the tones for a programmable item will select that item. After selecting a programmable item, you will hear several tones in a loop for each programmable item. Set the value matching a tone by moving the throttle stick to the top position when you hear the tone. The motor will then emit a special tone like "123", meaning this value is set and saved.

For example, to set the motor rotation: When you hear four short tones "Beep", move the throttle stick to the bottom position within 2 seconds to enter the motor rotation menu. One short tone "Beep" is for forward direction (CW), two short tones "Beep" is for reverse direction (CCW). If you want to set to reverse direction (CCW), move the throttle stick to the top position when you hear the two short tones "Beep". You will then hear a special confirmation tone like "123", which means "CCW" is set and saved.

Keeping the throttle stick at the top will return you to the programming mode to select other items. Moving the stick to the bottom within 2 seconds will exit the program mode directly.

Protection Function

• Start-up protection: If the motor fails to start normally within 2 seconds after pushing the throttle to start, the ESC will cut off the output power. You need to perform throttle calibration again for the ESC to restart. Possible reasons include: disconnection or poor connection between ESC and motor, the propeller or motor is blocked by other objects, the gearbox is damaged, etc.
• Over-heat protection: When the temperature of the ESC exceeds approximately 110°C, the ESC will automatically reduce the output power for protection, but will not fully shut down the power. It reduces power to 70% of the full power at most to ensure the motor has enough power to avoid crashes.
• Throttle signal loss protection: The ESC will reduce the output power if the throttle signal is lost for 1 second, and will cut off output to the motor if the throttle signal is lost for over 2 seconds. If the throttle signal recovers during power down, the ESC will immediately resume throttle control. In this case, the ESC will not protect if the signal loss is less than 2 seconds, only when the signal is lost for a longer time. The ESC will reduce the output power gradually instead of cutting it off immediately, giving the user some time to save the aircraft, considering both safety and practicality.
• Overload protection: The ESC will cut off power or restart automatically when the load increases suddenly. A possible reason is the motor being blocked.

Troubleshooting