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5. PARAMETERS
5.6 (A) Application parameters
Operation of the self power management function
• This function controls the magnetic contactor (MC) on the input side using the output relay to reduce the standby power.
Use separate power supplies for the main circuit and the control circuit by using terminals R1/L11 or S1/L21 (refer to
) and 24 V external power supply input (refer to
), and control the main circuit power supply MC by the Electronic
bypass MC1 signal of the inverter.
• Set
Pr.248 Self power management selection
= "1 or 2" and
Pr.190 to Pr.195 (Output terminal function selection)
=
"17" (positive logic) to assign the Control signal for main circuit power supply MC (Y17 signal) to an output terminal. (Set
Pr.248
in accordance with the
Pr.248
setting of the inverter.)
• The Y17 signal turns ON while the self power management function is enabled.
• When the protective function of the converter unit is activated, the Y17 signal is immediately turned OFF according to the
Pr.248
setting.
When
Pr.248
= "1", the Y17 signal is turned OFF when the protective function is activated due to any cause.
When
Pr.248
="2", the Y17 signal is turned OFF only when the protective function is activated due to an error resulted from
a failure in the converter unit circuit or a wiring error (refer to the following table). (For the fault details, refer to
.)
NOTE
• When the retry function is used for resetting during self power management operation, the Y17 signal retains the value before
the reset.
• Repeated operation of the magnetic contactor due to frequent start and stop or activation of the protective function may shorten
the life of the inverter or the converter unit.
• Changing the terminal assignment using
Pr.190 to Pr.195 (Output terminal function selection)
may affect the other
functions. Set parameters after confirming the function of each terminal.
Selection between resetting or not resetting during power supply to main
circuit (Pr.30 = "100")
• Converter reset is not performed if
Pr.30 Reset selection during power supply to main circuit
= "100", and supplying
power to the main circuit (input through terminals R/L1, S/L2, and T/L3) is started when power is supplied only to the control
circuit (input through terminals R1/L11 and S1/L12, or 24 V external power supply input).
NOTE
• When supplying power to the main circuit is started when power is supplied only to the control circuit, there is a slight delay
before starting.
• When supplying power to the main circuit is started while the protective function of the converter unit is activated, converter
reset is performed even when "not resetting after power-ON" is selected.
Parameters referred to
Pr.190 to Pr.195 (Output terminal function selection)
5.6.2
Operation selection at instantaneous power failure
When an instantaneous power failure occurs, the converter unit can restart at the power restoration.
Fault type
Inrush current limit circuit fault (E.IOH)
CPU fault (E.CPU)
CPU fault (E.6)
CPU fault (E.7)
Parameter storage device fault (control circuit board) (E.PE)
Parameter storage device fault (main circuit board) (E.PE2)
24 VDC power fault (E.P24)
Operation panel power supply short circuit/RS-485 terminals power supply short circuit
(E.CTE)
Internal circuit fault (E.13/E.PBT)
