Mitsubishi Electric F700 Instruction Manual page 209

Special operation and frequency setting
(5) Waiting time setting at MC switchover (Pr. 580, Pr. 581)
· Set a switching time of MC (e.g. time until RI01 turns on after RI01 turns off) in Pr. 580 MC switching interlock time
in the direct system (Pr. 579 = "2").You can set the time from MC switch-over to a start (time from when RI01
turns off and RI02 turns on until inverter output starts). Set this time a little longer than the MC switching time.
· You can set the time from MC switch-over to a start (time from when RI01 turns off and RI02 turns on until
inverter output starts) in Pr. 581 Start waiting time in the direct system (Pr. 579 = "2"). Set this time a little longer
than the MC switching time.
(6) Acceleration/deceleration time when an auxiliary motor is connected and disconnected
(Pr. 582, Pr.583)
· You can set the deceleration time in Pr. 582 Auxiliary motor connection-time deceleration time for decreasing the
output frequency of the inverter if an auxiliary motor connection occurs. Set the deceleration time in Pr. 582
from Pr. 20 Acceleration/deceleration reference frequency to stop.
The output frequency is not forcibly changed when "9999" is set.
· You can set the acceleration time in Pr. 583 Auxiliary motor disconnection-time acceleration time for accelerating the
output frequency of the inverter if an auxiliary motor disconnection occurs. Set the deceleration time in Pr. 583
from Pr. 20 Acceleration/deceleration reference frequency to stop.
The output frequency is not forcibly changed when "9999" is set.
REMARKS
Pr. 582 and Pr. 583 are not affected by the Pr. 21 Acceleration/deceleration time increments setting. (Setting range and setting
increments do not change.)
(7) Start of auxiliary motor (Pr. 584 to Pr. 586, Pr. 590)
· You can set the output frequency of the inverter-operated motor in Pr. 584 to Pr. 586 at which the commercial-
power supply operation motors start. When the output frequency equal to or higher than the setting continues
for longer than the time set in Pr. 590 Auxiliary motor start detection time, the commercial-power supply motors
start. In this case, the starting sequence depends on the pattern in Pr. 579 Motor connection function selection.
· Pr. 584 Auxiliary motor 1 starting frequency value means the frequency at which the first commercial-power supply
motor starts when the number of commercial-power supply motors.When starting the second commercial-
power supply motor when one commercial-power supply motor is running, set Pr. 585 Auxiliary motor 2 starting
frequency.
(8) Start of auxiliary motor (Pr. 587 to Pr. 589, Pr. 591)
· You can set the output frequency of the inverter-operated motor in Pr. 587 to Pr. 589 at which the commercial-
power supply operation motors stop. When the output frequency equal to or lower than the setting continues for
longer than the time set in Pr. 591 Auxiliary motor stop detection time, the commercial-power supply motors stop.In
this case, the stopping sequence depends on the pattern in Pr. 579 Motor connection function selection.
· Use Pr. 587 Auxiliary motor 1 stopping frequency to set the frequency at which one commercial-power supply
motor running stops. When stopping one commercial-power supply motor when two commercial-power supply
motors are running, set Pr. 588 Auxiliary motor 2 stopping frequency.
202
Output frequency
Motor connection occurs
Pr.20
Pr.583
Pr.582
Motor disconnection
occurs
Pr.591 Pr.583
Time