Mitsumi electronic FR-F520-0.75K, 55K Input filter time constant Pr, Pr filter time constant

PARAMETERS

4.2.32 Input filter time constant (Pr. 74)

Pr. 74 "filter time constant"

You can set the input section's internal filter constant for an external voltage or current frequency setting signal.

#Effective for eliminating noise in the frequency setting circuit.

#Increase the filter time constant if steady operation cannot be performed due to noise. A larger setting results in lower response. (The time constant can be set between approximately 1ms to 1s. with the setting of 0 to 8. A larger setting results in a larger filter time constant.)

Parameter	Factory	Setting Range
Number	Setting
74	1	0 to 8

4.2.33 Reset selection/disconnection PU detection/PU stop selection (Pr. 75)

Pr. 75 "reset selection/disconnection PU detection/PU stop selection"

You can select the reset input acceptance, PU (FR-DU04/FR-PU04) connector disconnection detection

function and PU stop function.
•	Reset selection		: You can select the reset function input timing.
•	PU disconnection detection		: When it is detected that the PU (FR-DU04/FR-PU04) is
				disconnected from the inverter for more than 1 second, the inverter outputs
				an alarm code (E.PUE) and comes to an alarm stop.
•	PU stop selection		: When an alarm occurs in any operation mode, you can stop the motor from
				the PU by pressing the	STOP	key.
					RESET
	Parameter	Factory		Setting Range
	Number	Setting
	75	14		0 to 3, 14 to 17

<Setting>

Pr. 75	Reset Selection	PU Disconnection Detection	PU Stop Selection
Setting
0	Reset input normally enabled.	If the PU is disconnected, operation
	Reset input enabled only when the		Pressing the	STOP	key
1		will be continued.
	protective function is activated.			RESET
			decelerates the motor to a stop only in
2	Reset input normally enabled.	When the PU is disconnected, the
	Reset input enabled only when the		the PU operation mode.
3		inverter output is shut off.
	protective function is activated.
14	Reset input normally enabled.	If the PU is disconnected, operation
	Reset input enabled only when the
15		will be continued.		STOP
	protective function is activated.		Pressing the		key
				RESET
			decelerates the motor to a stop in any
16	Reset input normally enabled.	When the PU is disconnected, the	of the PU, external and
		inverter output is shut off.	communication operation modes.

17Reset input enabled only when the protective function is activated.

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