Mitsubishi Electric 800 Series Instruction Manual page 457

(A) Application parameters
• To enable the self power management function for the separated converter type, enable the self power management
function also on the converter unit side. To activate the self power management function when a converter unit fault occurs,
connect the terminal to which Y17 signal of the converter unit is assigned and the terminal to which X94 signal of the
inverter is assigned.
Y17 output signal
(on the converter unit side)
OFF
OFF
ON
ON
• To use the X94 signal, set "94" in any of Pr.178 to Pr.189 (Input terminal function selection) to assign the function to an
input terminal.
NOTE
• When the start signal is turned OFF before the time set in Pr.137 has passed after the start signal is turned ON, the inverter
does not start and the MC1 signal is turned OFF after the time set in Pr.254 has passed.
If the start signal is turned ON again before the time set in Pr.254 has passed, the inverter immediately starts outputting.
Output frequency
• At inverter reset, the status of the MC1 signal is held and operation of the magnetic contactor is not performed.
• When the inverter stops the output due to, for example, the Output stop (MRS) signal, the MC1 signal is turned OFF after the
time set in Pr.254 has passed.
• During the stop, turning ON the External DC injection brake operation start signal (X13) and Pre-excitation/servo ON signal
(LX) turns ON the MC1 signal.
• To avoid inverter reset when starting to supply power to the main circuit when power is already supplied only to the control
circuit, set 100 or more in Pr.30. (For the separated converter type, setting Pr.30 of the converter unit is also required.)
• When supplying power to the main circuit is started when power is supplied only to the control circuit, there is a little waiting
time before starting.
• Repeated operation of the magnetic contactor due to frequent start and stop or activation of the protective function may
shorten the inverter life.
• Changing the terminal assignment using Pr.178 to Pr.189 (Input terminal function selection) and Pr.190 to Pr.196
(Output terminal function selection) may affect the other functions. Set parameters after confirming the function of each
terminal.
Parameters referred to ???????
Pr.11 DC injection brake operation time
Pr.30 Regenerative function selection
Pr.190 to Pr.196 (Output terminal function selection)
456
PARAMETERS
MC1 output signal
(inverter side)
OFF
ON
OFF
ON
(Hz)
ON OFF
STF
ON
MC1
Pr.137
Pr.254
page 599
page 608
page 370
MC1 output signal
actual operation
OFF
OFF
OFF
ON
Output frequency
(Hz)
Time
STF
OFF
MC1
Main circuit power
supply
Stop
Stop
Stop
Supplied
Time
ON OFF
ON
ON
Pr.137
Pr.254