Hitachi L2002 Dynamic Braking, Note the column meanings in the tables:, •Column “A” = Average braking torque from 60 Hz to 3 Hz

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

L2002 Inverter 200V Models				Braking Torque with BRD–E2 Braking Unit
		Braking	Using built-in			External resistor added
Model Number	HP	torque	resistor only		HRB1		HRB2		HRB3
		without
		braking unit	A	B	A	B	A	B	A	B
002NFE(F)2/NFU2	1/4	50%	150%	120%
004NFE(F)2/NFU2	1/2	50%	150%	120%
005NFE(F)2/NFU2	3/4	50%	150%	120%
007NFE(F)2/NFU2	1	50%	100%	80%	150%	120%
011NFE(F)2/NFU2	1.5	50%	60%	60%	100%	80%
015NFE(F)2/NFU2	2	50%	50%	50%	100%	80%
022NFE(F)2/NFU2	3	20%	50%	50%	100%	80%
037LFU2	5	20%	40%	40%	60%	60%	100%	100%	150%	120%
055LFU2	7.5	20%	30%	30%	50%	50%	70%	70%	100%	80%
075LFU2	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.

		L2002 Inverter 200V Models			Braking Torque with TWO (2) BRD–E2 Braking Units
				Braking	Using built-in			External resistor added
		Model Number	HP	torque	resistor only		HRB1		HRB2		HRB3
				without
				braking unit	A	B	A	B	A	B	A	B
		002NFE(F)2/NFU2	1/4	50%	150%	120%
		004NFE(F)2/NFU2	1/2	50%	150%	120%
		005NFE(F)2/NFU2	3/4	50%	150%	120%
		007NFE(F)2/NFU2	1	50%	150%	120%
		011NFE(F)2/NFU2	1.5	50%	100%	80%
ControlMotor	Accessories	015NFE(F)2/NFU2	2	50%	100%	80%
		022NFE(F)2/NFU2	3	20~40%	70%	70%	150%	120%
		037LFU2	5	20~40%	50%	50%	110%	90%
		055LFU2	7.5	20%	30%	30%	80%	80%	100%	100%	150%	150%
		075LFU2	10	20%	30%	30%	60%	60%	80%	80%	100%	100%