ABB ACS320 User Manual

Fault tracing 375
Embedded fieldbus faults
Embedded fieldbus faults can be traced by monitoring group Group 53: EFB protocol
parameters. See also fault/alarm SERIAL 1 ERR.
 No master device
If there is no master device on line, parameter 5306 EFB OK MESSAGES and 5307
EFB CRC ERRORS values remain unchanged.
What to do:
• Check that the network master is connected and properly configured.
• Check the cable connection.
 Same device address
If two or more devices have the same address, parameter 5307 EFB CRC ERRORS
value increases with every read/write command.
What to do:
• Check the device addresses. No two devices on line may have the same address.
 Incorrect wiring
If the communication wires are swapped (terminal A on one device is connected to
terminal B on another device), parameter 5306 EFB OK MESSAGES value remains
unchanged and parameter 5307 EFB CRC ERRORS increases.
What to do:
• Check the RS-232/485 interface connection.

ABB ACS320 Specifications

General

Overload Capacity	150% for 60 seconds
IP Rating	IP20
Frame Size	R1 to R3
Enclosure Rating	IP20
Frequency Range	0 to 500 Hz
Protection Features	Overvoltage, Undervoltage, Overcurrent, Overload, Short circuit, Ground fault, Overtemperature
Fieldbus Communication	Modbus RTU, PROFIBUS DP, CANopen
Communication Interfaces	RS485
Operating Temperature	-10 to +50 °C (14 to 122 °F)
Storage Temperature	-40°C to +70°C
Humidity	Less than 95% (non-condensing)
Supply Voltage	200 V to 240 V (±10%), 380 V to 480 V (±10%)
Input Voltage	200 V to 240 V (±10%), 380 V to 480 V (±10%)