jrk21v3 analog input cannot get the full range output

Hi,
I have an input (0-5v) with Rx pin and ground pin and the power supply is 15v, no feedback. I expect to get -15v to 15v output.
However, I only can get -15v to 2.6v. There is no load in the output. If I change the duty cycle manually and click the invert function, it is ok to get -15 to 15v. I just buy this new device, so every function of this device should be ok.
Is any other thing I need to check? Please help me.

Here is my configuration output.

INITIALIZED 0 INPUT_MODE ANALOG INPUT_MINIMUM 88 INPUT_MAXIMUM 4092 OUTPUT_MINIMUM 1448 OUTPUT_NEUTRAL 2048 OUTPUT_MAXIMUM 2648 INPUT_INVERT 0 INPUT_SCALING_DEGREE 0 INPUT_POWER_WITH_AUX 0 INPUT_ANALOG_SAMPLES_EXPONENT 5 INPUT_DISCONNECT_MINIMUM 44 INPUT_DISCONNECT_MAXIMUM 4093 INPUT_NEUTRAL_MAXIMUM 2179 INPUT_NEUTRAL_MINIMUM 2179 SERIAL_MODE USB_DUAL_PORT SERIAL_FIXED_BAUD_RATE 9600 SERIAL_TIMEOUT 0 SERIAL_ENABLE_CRC 0 SERIAL_NEVER_SUSPEND 0 SERIAL_DEVICE_NUMBER 11 FEEDBACK_MODE NONE FEEDBACK_MINIMUM 0 FEEDBACK_MAXIMUM 4095 FEEDBACK_INVERT 0 FEEDBACK_POWER_WITH_AUX 0 FEEDBACK_DEAD_ZONE 0 FEEDBACK_ANALOG_SAMPLES_EXPONENT 5 FEEDBACK_DISCONNECT_MINIMUM 0 FEEDBACK_DISCONNECT_MAXIMUM 4095 PROPORTIONAL_MULTIPLIER 0 PROPORTIONAL_EXPONENT 0 INTEGRAL_MULTIPLIER 0 INTEGRAL_EXPONENT 0 DERIVATIVE_MULTIPLIER 0 DERIVATIVE_EXPONENT 0 PID_PERIOD 10 PID_INTEGRAL_LIMIT 1000 PID_RESET_INTEGRAL 0 MOTOR_PWM_FREQUENCY 1 MOTOR_INVERT 0 MOTOR_MAX_DUTY_CYCLE_WHILE_FEEDBACK_OUT_OF_RANGE 200 MOTOR_MAX_ACCELERATION_FORWARD 600 MOTOR_MAX_ACCELERATION_REVERSE 600 MOTOR_MAX_DUTY_CYCLE_FORWARD 100 MOTOR_MAX_DUTY_CYCLE_REVERSE 600 MOTOR_MAX_CURRENT_FORWARD 0 MOTOR_MAX_CURRENT_REVERSE 0 MOTOR_CURRENT_CALIBRATION_FORWARD 37 MOTOR_CURRENT_CALIBRATION_REVERSE 37 MOTOR_BRAKE_DURATION_FORWARD 0 MOTOR_BRAKE_DURATION_REVERSE 0 MOTOR_COAST_WHEN_OFF 0 ERROR_ENABLE 70 ERROR_LATCH 70

OK. I found the answer. I need to set max duty cycle forward to 600…
Then everything works fine.

Hello.

I am glad you got it working. Thank you for letting us know that you found the problem and what is was.

-Derrill