Mitsubishi Electric FR-F800 Instruction Manual page 550

Operation panel
E.SER
indication
Name
Communication fault (inverter)
The inverter trips when communication error occurs consecutively for the permissible number of retries or
more when Pr.335 RS-485 communication retry count  "9999" during RS-485 communication from the
Description
RS-485 terminals. The inverter also trips if communication is broken for the period of time set in Pr.336 RS-
485 communication check time interval.
Check point
Check the RS-485 terminal wiring.
Corrective action
Perform wiring of the RS-485 terminals properly.
Operation panel
indication
Name
Analog input fault
The inverter trips when a 30 mA or higher current or a 7.5 V or higher voltage is input to terminal 2 while the
Description
current input is selected by Pr.73 Analog input selection, or to terminal 4 while the current input is selected
by Pr.267 Terminal 4 input selection.
Check point
Check the Pr.73, Pr.267, and the voltage/current input switch settings.(Refer to
Either give a current less than 30 mA, or set Pr.73, Pr.267, and the voltage/current input switch to the voltage
Corrective action
input and input a voltage.
Operation panel
E.USB
indication
Name
USB communication fault
The inverter trips when the communication is cut off for the time set in Pr.548 USB communication check
Description
time interval.
Check point • Check that the USB communication cable is connected securely.
• Check the Pr.548 setting.
Corrective action
• Connect the USB communication cable securely.
• Increase the Pr.548 setting or set "9999." (Refer to
Operation panel
E.SAF
indication
Name
Safety circuit fault
• The inverter trips when a safety circuit fault occurs.
• The inverter trips if the either of the wire between S1 and SIC or S2 and SIC becomes non-conductive while
Description
using the safety stop function.
• When not using the safety stop function, the inverter trips when the shorting wire between terminals S1 and
PC or across S2 and PC is disconnected.
• Check that the safety relay module or the connection has no fault when using the safety stop function.
Check point
• Check if the shorting wire between S1 and PC or between S2 and PC is disconnected when not using the
safety stop function.
• When using the safety stop function, check that wiring of terminal S1, S2 and SIC is correct and the safety
stop input signal source such as a safety relay module is operating properly. Refer to the Safety stop
function instruction manual for causes and countermeasures. (Please contact your sales representative for
Corrective action
the manual.)
• When not using the safety stop function, short across terminals S1 and PC and across S2 and PC with
shorting wires. (Refer to
E.PBT
Operation panel
indication
Name
Opposite rotation deceleration fault
Description
The inverter trips when an internal circuit fault occurs.
Corrective action
Please contact your sales representative.
E.AIE
page 58.)
E.13
E.BE
Causes and corrective actions
FR-PU07 VFD Comm error
FR-PU07 Analog in error
FR-PU07 USB comm error
page 493.)
FR-PU07
FR-PU07
Br.Cct.Fault
PROTECTIVE FUNCTIONS
page 306)
E.SAF
Fault
Fault
Fault 13
549
6 5