... 5.CE, CCC,SGS, ISO 380V 3PH-3PH 2.2KW MULTI-FUNCTIONAL VFD/AC DRIVE/FREQUENCY INVERTER 1. SY8000 AC DRIVE/VFD ... support the fieldbus.. built-in brake unit belows 22KW LCD/LED optional keyboard. 3. SY8000 AC DRIVE/VFD Widely used in ... DC/1ASerial communication portRS-485 connector RS485+,RS485-4 bits LED displaysetting frequency, output frequency, output voltage, output current, motor speed ...