Panasonic MINAS A3 Series Delay at, Motor standstill, Motor in motion, External, Regenerative

Parameter Setting

Default setting is shown by [ ]

Parameter

Parameter Name

Setting

Unit

Function/Description

No.

range

6A

Mechanical brake

0 – 100

2ms

The parameter sets time till non-energization of motor (servo free) after

delay at

[0]

the brake release signal (BRK-OFF) turns off (brake retained), at Serve

motor standstill

Off while the motor stops.

• In order to prevent

minor

SRV-ON

ON

OFF

movement/drop of the motor

BRK-OFF

(work) due to operation de-

Release

tb

Retention

lay time of the brake (tb):

Actual Brake

Setting of Pr6A => tb.

Release

Retention

• See “Serve On/Off Operation Motor Energized

Non-

Energization

When the Motor Stops” of

energization

Pr6A

the timing chart on page 42.

See also “Serve On/Off Operation When the Motor Stops” of the timing

chart of Preparations volume on page 43.

6B

Mechanical brake

0 – 100

2ms

Unlike Pr6A, the parameter sets time till brake release signal (BRK-OFF)

delay at

[0]

turns off (brake retained) after motor non-energization (servo-free), at Ser-

motor in motion

vo off while the motor is rotating.

• This should be set to prevent de-

SRV-ON

ON

OFF

terioration of the brake due to

revolutions of the motor.

BRK-OFF

Release

Retention

• At Servo off while the motor is ro-

Motor Energized

tb

tating, time tb in the right figure

Energization

Non-

will be either set time of Pr6B or

energization

time till the motor

rotational

Motor Speed

30 r/min

speed falls below approximately

30r/min, whichever is smaller.

•See “Serve On/Off Operation When the Motor is Rotating” of the timing chart of on page 43.

				See also “Serve On/Off Operation When the Motor Stops” of the timing
				chart of Preparations volume on page 42.
6C	External	0 – 3	–	This parameter is set depending on whether to use regeneration resis-
	regenerative			tance built in the driver, or to provide a regeneration resistance in the ex-
	resister set up			ternal (connect between RB1 and RB2 of connector CN X 2 in types A to
				D, and between terminal blocks P and B2 in types E - G).
				Setting	Regeneration	Protection against Regeneration
				value	Resistance to Use	Resistance Overload
						According to built-in resistance, (about
				[0]	Built-in resistance	1% duty) protection against regenera-
						tion resistance overload works.
				1	External resistance	This is activated with operating limits of
						the external resistance at 10% duty.
				2	Built-in resistance	This is activated with operating limits of
						the external resistance at 100% duty.
						Regeneration resistance does not
				3	External resistance	work, and a built-in condenser accom-
						modates all regenerated power.
				<Request>
				When you use an external regeneration, you must install external safe-
				guards such as a temperature fuse, etc.
				Otherwise, as protection of regeneration resistance would be lost, causing
				abnormal heat generation and burnout.
				<Caution>
				Be careful not to touch an external regeneration resistance.
				While you are using an external resistance, it may become hot and scald
				you. For type A, only external regeneration resistance is used.
6D	Main power-off	0 – 32767	2ms	The parameter sets time to detect shut-off when shut-off of main power
	detection time	[35]		supply continues.

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