Mitsumi electronic FR-F520-0.75K, 55K DC injection brake Pr to Pr, Operated at, Value Operated

PARAMETERS

4.2.7 DC injection brake (Pr. 10 to Pr. 12)

Pr. 10 "DC injection brake operation frequency" Pr. 11 "DC injection brake operation time"

Pr. 12 "DC injection brake voltage"

Related parameters

Pr. 13 "starting frequency" Pr. 71 "applied motor"

By setting the stopping DC dynamic brake voltage (torque), operation time and operation starting frequency, the stopping accuracy of positioning operation, etc. or the timing of operating the DC dynamic brake to stop the motor is adjusted according to the load.

	Parameter		Factory	Setting Range	Remarks	(Hz)
		Number	Setting
					9999: Operated at	frequency
	10		3Hz	0 to 120Hz, 9999	or below Pr. 13
					value.
					8888: Operated	Output
					switches on.
	11		0.5 s	0 to 10 s, 8888	when X13 signal
12		7.5K or less	4%	0 to 30%
		11K or more	2%			DC dynamic	Pr.12
							Operation
						brake voltage
							voltage

Operation

frequency

Time

Time

Pr.11 Operation time

<Setting>

•Use Pr. 10 to set the frequency at which the DC dynamic brake application is started.

By setting "9999" in Pr. 10, the motor is decelerated to the frequency set in Pr. 13 and braked.

•Use Pr. 11 to set the period during when the brake is operated. By setting “8888” in Pr. 11, the DC dynamic brake is operated while the X13 signal is on.

•Use any of Pr. 180 to Pr. 186 to assign the terminal used to input the X13 signal.

•Use Pr. 12 to set the percentage of the power supply voltage.

•When using the inverter dedicated motor (constant-torque motor), change the Pr. 12 setting as follows: 3.7K or less...4%, 5.5K or more...2% (Note 1)

Note: 1. When the Pr. 12 setting is either of the following values for 5.5K and 7.5K, it is automatically changed when the Pr. 71 setting is changed:

(1) When Pr. 12 setting is 4% (factory setting)

The Pr. 12 setting is changed to 2% automatically when the Pr. 71 setting is changed from [general-purpose motor selection value (0, 2)] to [constant-torque motor selection value (1)].

(2) When Pr. 12 setting is 2%

The Pr. 12 setting is changed to 4% (factory setting) automatically when the Pr. 71 setting is changed from [constant-torque motor selection value (1)] to [general-purpose motor selection value (0, 2)].

2. When Pr. 11 = "0" or Pr. 12 = "0", DC dynamic brake operation cannot be performed.

CAUTION

Install a mechanical brake. No holding torque is provided.

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