Mitsubishi FR-F500 Instruction Manual page 143

( 2 ) Parameter setting
Parameter
Name
Number
Commercial power
supply-inverter
135 switch-over
sequence output
terminal selection
MC switch-over
136
interlock time
137 Start waiting time
Commercial power
supply-inverter
138 switch-over
selection at alarm
occurrence
Automatic inverter-
commercial power
139
supply switch-over
frequency
Note: 1. Pr. 139 functions when Pr. 135 setting is other than "0".
2. When the motor started by the inverter reaches the automatic switch-over frequency, inverter
operation is switched to commercial power supply operation. If the inverter's run command value is
then lowered to or below the switch-over frequency, commercial power supply operation is not
automatically switched to inverter operation.
Switch off the inverter operation command signal (STF or STR) to switch commercial power supply
operation to inverter operation and decelerate the motor to a stop.
<Operation sequence>
Operation interlock
Inverter operation command
Inverter-commercial power supply switch-over
Commercial power supply-inverter switch-over
Commercial power supply-inverter switch-over
Commercial power supply-inverter switch-over
Setting
Sequence output is not provided. (Pr. 136, Pr. 137, Pr. 138 and Pr. 139 settings
0
are ignored.)
Sequence output is provided.
When MC1 to MC3 are assigned with Pr. 190 to Pr. 195 (output terminal
1
function selection), open collector outputs are provided. When they are not
assigned, relay outputs are provided from the FR-A5AR (option).
Sets the MC2 and MC3 operation interlock time.
0 to 100.0 s
Set a slightly longer (about 0.3 to 0.5 s) value than the time from when the ON
0 to 100.0 s
signal enters inverter operation MC3 to when it actually switches on.
Stops inverter operation and coasts the motor.
0
The inverter stops when an inverter fault occurs (both MC2 and MC3 switch off).
Stops inverter operation and automatically switches inverter operation to
commercial power supply operation.
1
When an inverter fault occurs, inverter operation is automatically switched to
commercial power supply operation (MC2: ON, MC3: OFF).
The motor is started and run by the inverter up to the set frequency, and when
the output frequency reaches or exceeds the set frequency, inverter operation is
0 to 60.0Hz
automatically switched to commercial power supply operation. Start and stop are
controlled by the inverter operation command (STF or STR).
9999 Automatic switch-over is not done.
ON
Power
OFF
ON
(MRS) OFF
ON
(STF) OFF
ON
(CS) OFF
ON
Off for inverter fault only
(MC1) OFF
ON
(MC3) OFF
ON
(MC2) OFF
Each timer
A A,B
Coast to stop
Operating status
(Motor speed)
Commercial power
supply stop
Operation command
Actual operation (Note)
Note: Indicates a delay
until MC switches on.
Description
C, A A
D
Inverter Coast- Coast-
operat-
ing ing
ion
Commercial power
supply operation
Each timer
A: Pr. 136 MC switch-over interlock time
B: Pr. 137 MC3 start commencement
(start waiting time)
C: Pr. 57 (reset time)
D: Pr. 58 (switch-over cushion time)
130
PARAMETERS
ON: Operation enable
OFF: Operation disable
ON: Forward rotation
OFF: Stop
ON: Inverter operation
OFF: Commercial power
supply operation
B C,D
Inverter
operation
Stop Inverter
operation