ABB ACS355 User Manual

352 Fault tracing
Embedded fieldbus faults
Embedded fieldbus faults can be traced by monitoring group 53 EFB PROTOCOL
parameters. See also fault/alarm SERIAL 1 ERR (0028).
 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 MESSAGESS value remains
unchanged and parameter 5307 EFB CRC ERRORS increases.
What to do:
• Check the RS-232/EIA-485 interface connection.

ABB ACS355 Specifications

General

Input Voltage	200 V to 240 V AC, 380 V to 480 V AC
Frequency	47 Hz to 63 Hz
Control Method	Scalar control
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short circuit
Communication Interfaces	Modbus RTU, CANopen
Enclosure Rating	IP20
Operating Temperature	-10°C to +50°C (14°F to 122°F)
Storage Temperature	-40°C to +70°C (-40 to +158 °F)
Humidity	95% RH (non-condensing)
Altitude	Up to 1000 m (3280 ft) without derating