Mitsubishi F700 Series User Manual

341
Causes and corrective actions
5
PROTECTIVE FUNCTIONS
Operation Panel
Indication
E.13
FR-PU04
FR-PU07(-01)
Fault 13
Name
Internal circuit fault
Description
Trips when an internal circuit error occurred.
Corrective action
Please contact your sales representative.
Operation Panel
Indication
E.PCH
FR-PU04 Fault 14
FR-PU07 Fault
FR-PU07-01 Precharge Error
Name
Pre-charge fault
Description
When the pre-charged time exceeds the Pr.764 (Pr.769) Pre-charge time limit, or the pre-charged amount
exceeds Pr. 763 (Pr. 768) Pre-charge upper detection level, the protective circuit activates, and the inverter
output is shutoff. This function is available when Pr.764 (Pr.769) Pre-charge time limit or Pr. 763 (Pr. 768)
Pre-charge upper detection level is set. This protective function is not available in the initial status. (Refer
to page 256)
Check point
· Check if the Pr.764 (Pr.769) Pre-charge time limit setting is too low.
· Check if the Pr. 763 (Pr. 768) Pre-charge upper detection level setting is too low.
· Check if the automatic switchover frequency set in Pr.127 (Pr.754) is too low.
· Check if there is a break in the connection with a pump.
Corrective action
· Set the Pr.764 (Pr.769) Pre-charge time limit setting higher.
· Set the Pr. 763 (Pr. 768) Pre-charge upper detection level setting higher.
· Set the automatic switchover frequency higher in Pr.127 (Pr.754).
· Check the connection with a pump.
Operation Panel
Indication
E.LCI
FR-PU04 Fault 14
FR-PU07 Fault
FR-PU07-01 Lost mA Input
Name
4mA input fault
Description
When the analog input current stays at 2mA or lower for the time period set in Pr.778 Current input check
filter, the protective circuit activates, and the inverter output is shutoff. The function is available when
Pr.573 4mA input check selection ="2 or 3." This protective function is not available in the initial status.
(Refer to page 177 )
Check point
· Check if the wire used for the analog current input has a break.
· Check if the Pr.778 Current input check filter setting is too low.
Corrective action
· Check the wiring for the analog current input.
· Set the Pr.778 Current input check filter setting higher.
CAUTION
• If protective functions of E.ILF, E.PTC, E.PE2, E.CDO, E.IOH, E.SER, E.AIE, E.PID, E.PCH, E.LCI are activated when using
the FR-PU04, "Fault 14" appears.
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.
REMARKS
For the 01800 or more, you can set Pr. 75 to disable reset operation until the thermal cumulative amount reaches 0 when a
thermal trip (THM, THT) or an overcurrent trip (OC1 to OC3) occurs consecutively twice.

Mitsubishi F700 Series Specifications

General

Humidity	95% RH or less (non-condensing)
Control Method	V/F control
Protection Features	Overcurrent, overvoltage, undervoltage, overheat, short circuit
Communication Options	RS-485
Operating Temperature	-10°C to +50°C
Storage Temperature	-20°C to +65°C
Altitude	Up to 1000m above sea level
Overload Capacity	150% for 60 seconds
Cooling Method	Forced air cooling
Power Range	0.75 to 630 kW (1 to 845 hp)
Output Voltage	3-phase 200 to 240 VAC, 380 to 500 VAC (matching input voltage)