Mitsubishi Electric Freqrol-A100 Instruction Manual page 154

2) Terminal operation after parameter setting
STF
OFF
(OFF)
3FF
+
ON
MRS
OFF
(OFF)
OFF
+
ON
CS
OFF
(OFF)
OFF
+
ON
.
MC1
3FF
+
ON
OFF
+
ON)
0 N
MC2
OFF
(OFF)
OFF
MC3
OFF
+
ON
(OFF
+
ON)
0 N
Remarks
External operation mode
(PU operation mode)
1
Power on
(inverter)
MC2 is turned ON after MC3
is turned OFF. (The motor
coasts during this period)
Waiting time 2 seconds
MC3 is turned on after MC2 is
turned off. (The motor coasts
during this period)
Waiting time 4 seconds
At constant
speed
(commercial)
ON
+
OFF
OFF
+
ON
OFF
-t
ON
ON
+
OFF
ON
+
OFF
OFF
+
ON
inverter for
deceleration
(inverter)
ON
I
ON+ OFF OFF
4.7.5 Notes
(1) This function is not implemented unless R1 and S1 use a different power supply (power supply
not passing via MC1).
(2) When the value set in Pr. 107 is other than 0, this function is only valid for external operation
or PU (speed command)
+
external (operation command) operation. When the value set in Pr.
107 is other than 0, MC1 and MC3 are turned on in the other operation mode.
(3) When MRS and CS are ON and STF is OFF, MC is ON. However, when the motor was coasted
to a stop during commercial power supply operation, inverter starts operation after the time set
in Pr. 109 has elapsed.
(4) When the frequency is set in Pr. 11 1 for automatic switch-over operation, connect CS and SD
and set the automatic restart after instantaneous power failure (Pr. 57, 58). Startlstop is made
by the STF switch during inverter operation. (When the setting of automatic restart after instan-
taneous power failure has not been made, the motor is coasted to a stop.)
(5) When the value set in Pr. 11 1 is equal to or less than the starting frequency, commercial power
supply operation is performed as soon as inverter operation is commanded (STF is turned on).
Note that operation is not performed if the set frequency of the inverter is less than the starting
frequency.
(6) If MC2 or MC3 is turned on when both MC2 and MC3 are off, the waiting time set in Pr. 108 ex-
ists.
(7) If the value set in Pr. 107 is other than 0, Pr. 108 and 109 settings are ignored in the PU op-
eration mode.
Also, the input terminals (STF, CS, MRS, JOGIOH) of the inverter return to their regular func-
tions.
(8) When the commercial power supply-inverter switching sequence is selected, the PU operation
interlock function is not activated if it has been selected (Pr. 79
=
7).
(9) When 8888 has been set in Pr. 11 "DC injection brake operation time", the commercial power
supply-inverter switching sequence cannot be selected, set a value for Pr. 11.