Mitsubishi Electric fr-e700 series, Instruction Manual

Page: 546 / 608

Causes and corrective actions Troubleshooting
7 - 18
Operation panel
indication
E.USB
FR-PU04 Fault 14
FR-PU07 USB comm error
Name USB communication fault
Description
When communication has broken during the time set in Pr. 548 "USB communication check time
interval", this function stops the inverter output.
Check point
앫
Check the USB communication cable.
앫
Check the Pr. 548 "USB communication check time interval" setting.
Corrective action
앫
Check the USB communication cable.
앫
Increase the Pr. 548 "USB communication check time interval" setting. Or, change the setting
to 9999. (Refer to section 6.19.8.)
Operation panel
indication E.MB4 to
E.MB7
to
FR-PU04
E.MB4 Fault to E.MB7 Fault
FR-PU07
Name Brake sequence fault
Description
The inverter output is stopped when a sequence error occurs during use of the brake sequence
function (Pr. 278 to Pr. 283). This protective function does not function in the initial status. (Refer
to section 6.9.5.)
Check point Find the cause of alarm occurrence.
Corrective action Check the set parameters and perform wiring properly.
Operation panel
indication
E.SAF
FR-PU04 Fault 14
FR-PU07 Fault E.SAF
Name Safety circuit fault
Description
Appears when safety circuit is malfunctioning.
Appears when one of the lines between S1 and PC, or between S2 and PC is opened.
Check point
앫
Check if the shorting wire between S1 and PC or between S2 and PC is disconnected when
not using the safety stop function.
앫
Check that the safety relay module or the connection has no fault when using the safety stop
function.
Corrective action
앫
When not using the safety stop function, short across terminals S1 and PC and across S2 and
PC with shorting wire. (Refer to section 3.4.3).
앫
When using the safety stop function, check that wiring of terminal S1, S2 and PC is correct
and the safety stop input signal source such as safety relay module is operating properly.
Refer to the Safety stop function instruction manual (BCN-A211508-004) for causes and
countermeasures.
Operation panel
indication
E.13
FR-PU04
FR-PU07
Fault 13
Name Internal circuit fault
Description Stop the inverter output when an internal circuit fault occurred.
Corrective action Please contact your sales representative.
NOTES If protective functions of E.ILF, E.PE2, E.IOH, E.AIE, E.USB or E.SAF are activated when using the
FR-PU04, "Fault 14" is displayed.
Also when the faults history is checked on the FR-PU04, the display is "E.14".
If faults other than the above appear, contact your sales representative.