Mitsumi electronic FR-F520-0.75K, 55K Operation sequence, Parameter Name Setting Description

PARAMETERS

(2) Parameter setting

Parameter	Name	Setting	Description
Number
	Commercial power	0	Sequence output is not provided. (Pr. 136, Pr. 137, Pr. 138 and Pr. 139 settings
			are ignored.)
	supply-inverter
			Sequence output is provided.
135	switch-over
			When MC1 to MC3 are assigned with Pr. 190 to Pr. 195 (output terminal
	sequence output	1
			function selection), open collector outputs are provided. When they are not
	terminal selection
			assigned, relay outputs are provided from the FR-A5AR (option).
136	MC switch-over	0 to 100.0 s	Sets the MC2 and MC3 operation interlock time.
	interlock time
137	Start waiting 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
			signal enters inverter operation MC3 to when it actually switches on.
	Commercial power	0	Stops inverter operation and coasts the motor.
			The inverter stops when an inverter fault occurs (both MC2 and MC3 switch off).
	supply-inverter
			Stops inverter operation and automatically switches inverter operation to
138	switch-over
			commercial power supply operation.
	selection at alarm	1
			When an inverter fault occurs, inverter operation is automatically switched to
	occurrence
			commercial power supply operation (MC2: ON, MC3: OFF).
	Automatic inverter-		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
	commercial power	0 to 60.0Hz
139			automatically switched to commercial power supply operation. Start and stop are
	supply switch-over
			controlled by the inverter operation command (STF or STR).
	frequency
		9999	Automatic switch-over is not done.

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>

ON Power OFF

Operation interlock ON (MRS) OFF

Inverter operation command ON (STF) OFF

Inverter-commercial power supply switch-over ON (CS) OFF

Commercial power supply-inverter switch-over ON	Off for inverter fault only
(MC1) OFF
Commercial power supply-inverter switch-over ON
(MC3) OFF
Commercial power supply-inverter switch-over ON
(MC2) OFF

Each timer
		A	A,B		C,	A	A	B	C,D
					D
				Coast to stop
Operating status
(Motor speed)						Coast-	Coast-
					Inverter				Inverter
					operat-	ing	ing		operation
					ion	Commercial power
	Commercial power									Stop
	supply stop					supply operation

ON: Operation enable

OFF: Operation disable

ON: Forward rotation

OFF: Stop

ON: Inverter operation

OFF: Commercial power supply operation

Inverter operation

Operation command Actual operation (Note)

Note: Indicates a delay until MC switches on.

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