... low oil pressure, high water temperature, emergency stop, speed, frequency overrun, boot failure fault shutdown protection function. ... 12V), 250mA (24V)Magnetic (speed) sensor input voltage input: + / 0.5V ~ 70V (maximum)Magnetic (speed) sensor frequency input range: 10000Hz ( ... battery voltage (V).(fourth): screen display frequency (Hz), speed (RPM), charging voltage (V).(fifth): display screen machine ...