HOBBYWING EZRUN MAX4-HV Brushless Electronic Speed Controller User Manual
- June 5, 2024
- HOBBYWING
Table of Contents
HOBBYWING EZRUN MAX4-HV Brushless Electronic Speed Controller
Specifications
Note
The Kv value here is only a conventional recommended value, which needs to be determined in combination with the rpm supported by the motor and the actual load of the vehicle.
Connections
Motor connection
There is a difference between connecting a sensored brushless motor and a
sensorless brushless motor:
- When connecting to a sensored brushless motor
- There are strict wire sequencing requirements for connecting the ESC to the motor, the three A/B/C ESC wires must connect to the three A/B/C motor wires correspondingly. Next, connect the ESC sensor port and the motor sensor port with the stock 6-pin sensor cable. If you don’t plug the sensor cable in, your ESC will still work in sensorless mode even if you’re using a sensored motor
- If the motor direction is reversed, change the parameter on item 4 “Motor Rotation” to achieve the correct setting.
- When connecting to a sensorless brushless motor there are no wire sequencing requirements needed when using a sensorless brushless motor, you can swap two wires if the motor runs in reverse.
Recevier connection
Connect the ESC throttle cable to the throttle channel on the receiver. Since the red line in the throttle cable outputs 6V/7.4V/8.4V voltage to the receiver and servo, please do not supply additional power to the receiver, otherwise the esc may be damaged. If additional power is required, disconnect the red line on the throttle cable.
Battery connection
Make sure that the (+) pole of the ESC is connected to the (+) pole of the battery and (-) to the (-). If the connection is reversed, the ESC will be damaged and will not be covered by the warranty service.
ESC Setup
Set the throttle range
When first use the ESC or the transmitter changes “TRIM” tune, D/R,EPA and
other parameters, the throttle range is need to reset. We strongly recommend
to open the fail safe function of the transmitter, set the no signal
protection of throttle channel (“F/S”) to close the output or set the
protection value to the throttle neutral position the motor can stop running
if the receiver cannot receive the signal of the transmitter. The calibrating
steps of throttle is as follows
- Turn on the transmitter, ensure all parameters (D/R, EPA, ATL) on the throttle channel are at default (100%). For transmitter without LCD, please turn the knob to the maximum, and the throttle “TRIM” to 0. (If the transmitter without LCD, turn the knob to the middle point).
- Start by turning on the transmitter with the ESC turned off but connected to a battery. Holding the SET” button then press the “ON/OFF” button, the RED LED on the ESC starts to flash The motor beeps at the same time), and then release the “SET” button immediately.
Note
Beeps from the motor may be low sometimes, and you can check the LED status instead
-
Set the neutral point, the full throttle endpoint and the full brake endpoint.
-
Leave transmitter at the neutral position, press the “SET” button, the RED LED dies out and the GREEN LED flashes 1 time and the motor beeps 1 time to accept the neutral position.
-
Pull the throttle trigger to the full throttle position, press the “SET” button, the GREEN LED blinks 2 times and the motor beeps 2 times to accept the full throttle end point.
-
Push the throttle trigger to the full brake position, press the “SET” button, the GREEN LED blinks 3 times and the motor beeps 3 times to accept the full brake endpoint.
Note -
The end position of forward pull the trigger to the maximum throttle position if it is pistol-style transmitter. Push the throttle to the top if it is board-style transmitter.
-
The end position of backward: Push the trigger to the maximum brake position if it is pistol-style transmitter. Pull the throttle to the bottom if it is board-style transmitter t he motor can be started after the ESC/Radio calibration is complete
Power on/off and beep instructions
Switch instructions: short press ON/OFF key to power-on, long press on ON/OFF
key to shut down. Power-on beep description: Under normal circumstances, the
ESC will emit a few “beep” to indicate the number of lithium cells. A short
“beep-” means the #1, and a long ”beep—“ means the #5. For example: “beep—,
beep-” means 6 cells, “beep—beep-beep-“ means 7 cells, ”beep—beep—“ means 10
cells, ”beep—beep—, beep- beep-“ means 12 cells.
Note
Motor beeping at the same time, the ESC light flashes synchronously. For
example: when the motor makes a long beep, the esc flashes for a long time,
and when the motor makes a short beep, the esc flashes for a short time.
Programmable Items
The column of white words on black background in the following table are the default values of programmable items.
Running Mode
Option 1: Forward with brake
The vehicle can only move forward and has brake function. This is also
commonly acceptable at races.
Option 2: Forward/Reverse and Brake
This option is known to be the “training” mode with “Forward/Reverse with
Brake” function. The vehicle only brakes on the first time you push the
throttle trigger to the reverse/brake zone. If the motor stops when the
throttle trigger return to the neutral zone and then re-push the trigger to
reverse zone, the vehicle will reverse, if the motor does not completely stop,
then your vehicle won’t reverse but still brake, you need to return the
throttle trigger to the neutral zone and push it to reverse zone again. This
method is for preventing vehicle from being accidentally reversed.
Option 3: Forward and Reverse
When the throttle trigger is pushed from neutral to reverse point, the motor
reverses. This mode is generally used in special vehicles.
Lipo Cells
Set the correct value according to the actual number of Lipo batteries used. The default is automatically calculated, and the “Auto” only recognizes the even number of Lipo batteries, such as 6S / 8S / 10S / 12S; The odd number of Lipo batteries, such as 7S/9S/11S, will not be recognized. This is to avoid mis-calculation during actual use,for example, 7S Lipo without power may be incorrectly calculated as fully charged 6S Lipo. Therefore, this parameter value needs to be manually set when using odd number of Lipo batteries.
Low Voltage Cut-Off
This function is mainly to prevent excessive discharge of lithium batteries
causing damage. The ESC monitors the battery voltage at all times, and once
the voltage falls below the set threshold, the power output is reduced and
the power output is completely cut off after a few seconds. When the voltage
protection is entered, the red LED flashes in the “-, -, -”. The three levels
of low, medium and high here correspond to 2.8V/Cell, 3.1V/Cell and 3.4V/Cell
respectively. For NiMH batteries, it is recommended to set this parameter to
“Disabled”.
Motor Rotation
Setting the rotation of the motor. Due to some differences with the
drivetrains on different car kits, it is possible to that the car will go in
the opposite direction upon full throttle. In the event that this happens, you
can set the
“motor rotation direction” to the opposite direction; “CW” or “CCW”.
BEC Voltage
BEC voltage support 6V/7.4V/8.4V. Generally, 6.0V is suitable for standard servos, while 7.4V/8.4V is suitable for high-voltage servos. Please set according to the servo specifications.
WARNING
Do not set the BEC voltage above the maximum operating voltage of the servo, as this may damage the servo or even the ESC.
Max. Brake Force
This ESC provides proportional braking function; the braking effect is decided
by the position of the throttle trigger. It sets the percentage of available
braking power when full brake is applied. Large amount will shorten the
braking time but it may damage your pinion and spur gear.
Max. Reverse Force
Refers to the reversing speed. Selecting different parameter values can produce different reversing speed. It is recommended to use a smaller reversing speed to avoid errors caused by reversing too quickly.
Punch
Set in 1-9 stages, the higher the set value, the faster the acceleration. Kindly take into consideration according to the site, tire grip characteristics, vehicle configuration, etc. An aggressive setting may cause the tire to slip, the starting current to be too large and adversely affect the electronics performance
Drag Brake
Refers to the brake force generated by the motor when the throttle trigger returns to neutral position. Choose the appropriate value according to the type of vehicle, configuration, site, etc.
Programming method
-
The LED program card is used to set the parameters
Connect the program card to the ESC and power up. Using the “ITEM” and “VALUE” buttons on the program card to quickly select and change the values. Press “OK” to save the parameters. -
Use LCD program box to set parameters
This ESC allows LCD program box to set parameters or LCD program box connecting to the computer to set parameters and update firmware (Use HOBBYWING USB LINK software). You need to connect your ESC and the LCD program box via a cable with two JR male connectors and turn on the ESC, after a few seconds, the esc will establish communication with the LCD program box, and then press any key on the program box to enter the parameter interface. You can adjust the setting via “ITEM” & “VALUE” buttons, and press the “OK (R/P)” button to save new settings to your ESC. -
Use OTA Programmer to set parameters
Connecting the OTA Bluetooth module to the programming port / fan port of the ESC, then use mobile phone to install HOBBYWING HW LINK App to set parameters or update firmware. -
Data Logging
Connecting the OTA Bluetooth module to the ESC and establishing communication, you can view the real-time data in running and historical record data (graph) in the [Data Log] menu in HW link app.
Factory reset
Below are several ways to recover factory parameters
The SET button
When the throttle trigger is in the neutral position, press and hold the SET button continuously for about 8 seconds, the red and green lights will flash at the same time indicating that the factory reset is successful and needs to be re-powered before it can be run.
The LED program card
Once the LED program card is connected to the ESC, press the “RESET” key and
then press “OK” to save to restore the factory settings. The LCD program box:
Once the LCD program box is connected to the ESC, the “Restore Default” item
is selected by the ITEM option and saved by pressing the OK (R/P) button to
restore to the factory settings.
The OTA Bluetooth module
After the OTA module is connected, go to the Parameter Settings and click the “Reset” button to restore to the factory settings.
Explanation for LED status
The run status indication
- The throttle trigger is in the neutral point and the LED lights are off.
- When advancing, the red light is constantly on, and when the throttle is at full throttle, the green light is on.
- When reversing, the red light is constantly on; If the reversing force is set to 100%, the green light is also lit when the throttle is at the maximum of the reverse.
What the LED means when the relevant protection function is triggered
- The red light flashes enters the low voltage protection state.
- The green light flashes (single flash, “☆, ☆, ☆”): enters the esc overheat protection state.
- The green light flashes (double flash, “☆☆, ☆☆, ☆☆”): enters the motor overheat protection state.
Note
Motor overheat protection is effective only when Hobbywing matching motor (such as EZRUN-70125SD) is used. When non Hobbywing matching motor is used, there is no motor overheat protection function.
- The green light flashes (three flashes, “☆☆☆, ☆☆☆, ☆☆☆”): enters the current protection state.
- The green light flashes (five flashes, ”☆☆☆☆☆, ☆☆☆☆☆, ☆☆☆☆☆”): enters the capacitor overheat protection state.
Trouble Shooting
