Mitsubishi Electronics FR-F700 Outline dimension drawings, External connection diagram, Cable

Name (type)

Specifications, Structure, etc.

￿The brake unit and resistor unit are options that will fully exhibit the regenerative braking capability of the inverter. Use them as a set.

￿There are six different brake units as in the following table, from which make selection according to the deceleration time.

￿When the brake unit duty (%ED) excess and an alarm occur, errors appear in the inverter.

￿Brake unit selection table

￿%ED at short-time rating when braking torque is 100%

Motor Capacity		75	90	110	132	160	185	220	280	375
		kW	kW	kW	kW	kW	kW	kW	kW	kW
Inverter	200V	75K	90K	110K	------	------	------	------	------	------
	400V	75K	90K	110K	132K	160K	185K	220K	280K	375K
2 MT-BU5-55K		5	------	------	------	------	------	------	------	------

0%ED

unit	V	MT-BU5-110K	20	15	10		------	------	------	------	------
						------
Brake
	4	MT-BU5-H75K	10	5	------	------	------	------	------	------	------
		MT-BU5-H150K	40	25	20	10	5	5	------	------	------
	0
		MT-BU5-H220K %ED	80	60	40	25	15	10	10	5
	0										------
	V	MT-BU5-H280K	------	80	65	40	30	20	15	10	5
		MT-BU5-H375K	------	------	------	80	50	40	20	15	10

￿Braking torque (%) at short-time rating

		Motor Capacity		75	90	110	132	160	185	220	280	375
				kW	kW	kW	kW	kW	kW	kW	kW	kW
		Inverter	200V	75K	90K	110K	------	------	------	------	------	------
			400V	75K	90K	110K	132K	160K	185K	220K	280K	375K
	2	MT-BU5-55K	braking	70	60	50	------	------	------	------	------	------
	0		torque
	0
unit		MT-BU5-110K	(%)	150	120	100	------	------	------	------	------	------
	V
Brake	4	MT-BU5-H75K		100	80	70	55	45	40	35	25	20
		MT-BU5-H150K	braking	150	150	135	110	90	80	70	50	40
	0
	0	MT-BU5-H220K	torque	150	150	150	150	135	115	100	80	55
	V	MT-BU5-H280K	(%)	150	150	150	150	150	150	125	100	70
		MT-BU5-H375K		150	150	150	150	150	150	150	130	100

*To obtain a large braking torque, the motor has to have a torque characteristic that meets the braking torque.

Check the torque characteristic of the motor.

￿Brake unit and resistor unit combinations and cables

Brake Unit Type		Resistor unit	Cable
		type
200V	MT-BU5-55K	MT-BR5-55K	14mm2
	MT-BU5-110K 2×MT-BR5-55K		2×14mm2
	MT-BU5-H75K MT-BR5-H75K		14mm2
	MT-BU5-	2×MT-BR5-H75K	2×14mm2
	H150K
400V	MT-BU5-	3×MT-BR5-H75K	3×14mm2
	H220K
	MT-BU5-	4×MT-BR5-H75K	4×14mm2
	H280K
	MT-BU5-	5×MT-BR5-H75K	5×14mm2
	H375K

(Caution 1) Be sure to select the well-ventilated place for installa- tion of the resistor unit. Ventilation is necessary when installing the resistor in a place, e.g. enclosure, where heat is not well diffused.

(Caution 2) The temperature rise of the discharging resistor is 300deg. Therefore, wire the cable so as not to touch the resistor. In addition, separate the parts with low heat resistance and the resistor by at least 40 to 50cm.

(Caution 3) The temperature of the resistor unit abnormally increases if the brake unit is operated exceeding the specified duty. Since the resistor unit may result in overheat if the temperature of the brake unit is left unchanged, switch off the inverter.

*The resistor unit is provided with a thermostat (a contact) as overheat protection. If this protective device is activated under normal operation, it is assumed that the deceleration time is too short. In such a case, increase the deceleration time setting of the inverter.

Brake unit MT-BU5-(H)￿￿K Resistor unit MT-BR5-(H)￿￿K

￿Outline dimension drawings

		A
		AA
		AB
	B BA
4	7		LN
Mounting hole		LP
	LC
			N
	CN8	P	X-Y

P, PR terminal

2M6 screwN

85

C

				85
		NP
				800
			TH2	M4
M6
	P PR TH1 E
		40		30
193				189
	37	60	10 21

480

510

4157.5 Mounting hole

75 300 75

450

		Features
Peripheral Devices		Why energy		savings?
	Standard		Specifications
Outline		Dimension		Drawings
Terminal Connection	Diagram		Terminal Specification		Explanation
	Operation		Panel
	Parameter		List
Explanations		of		Parameters
	Protective		Functions
		Options

Brake Unit Type		A	AA	AB	B	BA	C	Lc	LP	LN	N	Approx.	X	Y	Z
												mass
200V MT-BU5-55K		118	102	90	200	100	256.5	550	1740	1740	1	1.5	14	12	8
class MT-BU5-110K		188	172	160	200	100	256.5	550	2000	2000	2	3.0	22	12	8
	MT-BU5-H75K	118	102	90	200	100	256.5	550	1740	1740	1	1.5	14	12	8
400V	MT-BU5-H150K	188	172	160	200	100	256.5	550	2000	2000	2	3.0	22	12	8
	MT-BU5-H220K	258	242	230	200	100	256.5	550	2000	2000	3	4.5	38	12	8
class
	MT-BU5-H280K	328	312	300	200	100	256.5	550	2330	2330	4	6.0	60	12	10
	MT-BU5-H375K	398	382	370	200	100	256.5	550	2330	2330	5	7.5	60	12	10

￿External connection diagram

Resistor unit		Resistance			mass
	type		value
200V	MT-BR5-55K			2.0Ω	50kg
class
400V	MT-BR5-			6.5Ω	70kg
class	H75K

Instructions

Motor

Inverter

R/L1 U

S/L2 V

T/L3 W

P/+

		The wiring length should be 10m
		maximum when wires are twisted
		and 5m maximum when wires are
IM		not twisted.
		TH1	TH2
	P	P

(Caution 1) For wiring of the brake unit and inverter, use an accessory cable supplied with the brake unit. Connect the main circuit cable to the ter- minals P/+ and N/- and connect the control cir- cuit cable to the connector (CN8) inside by

Brake unit

Compatibility

N/-

CN8

PR

PR

making cuts in the rubber bush at the top of the inverter.

(Caution 2) The brake unit which uses multiple resistor

Inverter

P

P

units has terminals equal to the number of

PR

PR

resistor units. Connect one resistor unit to one pair of terminals (P, PR).

Cable provided with a brake unit

Brake unit

MT-BU5Resistor unit

MT-BR5

Warranty

Inquiry

54