Hitachi L100 manual 149

5–6

Dynamic Braking

Use one BRD–E2 braking unit for the braking torque listed in the following table.

Note the column meanings in the tables:

•Column “A” = Average braking torque from 60 Hz to 3 Hz.

•Column “B” = Average braking torque from 120 Hz to 3 Hz

L100 Inverter 200V Models				Braking Torque with BRD–E2 Braking Unit
		Braking torque	Using built-in			External resistor added
			resistor only
Model Number	HP	without			HRB1		HRB2		HRB3
		braking unit
			A	B	A	B	A	B	A	B
002NFE/NFU	1/4	50%	150%	120%
004NFE/NFU	1/2	50%	150%	120%
005NFE/NFU	3/4	50%	150%	120%
007NFE/NFU	1	50%	100%	80%	150%	120%
011NFE/NFU	1.5	50%	60%	60%	100%	80%
015NFE/NFU	2	50%	50%	50%	100%	80%
022NFE/NFU	3	20%	50%	50%	100%	80%
037LFU	5	20%	40%	40%	60%	60%	100%	100%	150%	120%
055LFU	7.5	20%	30%	30%	50%	50%	70%	70%	100%	80%
075LFU	10	20%	20%	20%	40%	40%	50%	50%	80%	80%

Connect a second braking unit in parallel for additional braking torque listed in the following table.

		L100 Inverter 200V Models			Braking Torque with TWO (2) BRD–E2 Braking Units
				Braking torque	Using built-in			External resistor added
					resistor only
		Model Number	HP	without			HRB1		HRB2		HRB3
				braking unit
					A	B	A	B	A	B	A	B
		002NFE/NFU	1/4	50%	150%	120%
		004NFE/NFU	1/2	50%	150%	120%
		005NFE/NFU	3/4	50%	150%	120%
		007NFE/NFU	1	50%	150%	120%
		011NFE/NFU	1.5	50%	100%	80%
ControlMotor	Accessories	015NFE/NFU	2	50%	100%	80%
		022NFE/NFU	3	20~40%	70%	70%	150%	120%
		037LFU	5	20~40%	50%	50%	110%	90%
		055LFU	7.5	20%	30%	30%	80%	80%	100%	100%	150%	150%
		075LFU	10	20%	30%	30%	60%	60%	80%	80%	100%	100%