Siemens EK 726 Series Manual de servicio descargar pdf (Pagina 116)

OPTIONEN

MICROMASTER

MICROMASTER Vector

MIDIMASTER Vector

SIEMENS DA 64 – 2002/2003

Version D 6/16

6.5 Braking resistors for MICROMASTER Vector

Electronic braking module (EBU) and braking resistors for MIDIMASTER Vector

Braking resistors for MMV

Resistor Continuous

rated

power

Peak

power

Resistance

(tol.±10%)

Peak

voltage

Dimensions Weight Drive inverter type

Order No. W

(5% on

time)

mm kg

6SE3290-0CA87-2RA0

40 800 200 200 190 57 28 - 54 1.3 MMV12 - MMV75

MMV12/2 - MMV75/2

6SE3290-0CB87-2RA0

80 1600 100 450 280 271 57 28 - 54 1.7 MMV110 - MMV150

MMV110/2 - MMV150/2

6SE3290-0CC87-2RA0

200 4000 40 338 330 80 20 40 54 3.1

MMV220 - MMV300

MMV220/2 - MMV400/2

6SE3290-0DA87-2RA0

80 1600 400 280 270 57 28 - 54 1.7 MMV37/3 -MMV150/3

6SE3290-0DB87-2RA0

150 3000 200 900 280 271 83 23 40 54 2.5 MMV220/3 - MMV300/3

6SE3290-0DC87-2RA0

400 7500 85 400 390 103 28 40 52 3.8 MMV400/3 - MMV750/3

Electronic braking modules for MDV

Drive inverter

EBU Associated resistors

Type Order No.

Minimum total

resistance for

each EBU

Order No.

Resist-

ance

Brief peak rated

value (5 s)

Power for

on time

=20 %

Contin-

uous

rated

power

Peak voltage

MD(V)550/2 to 6SE3190-0CX87-2DA0 10 6SE3213-6SP87-0RA0 20 7.5 5 1.25 380

MDV4500/2 6SE3221-4SP87-0RA0 10 15 10 2.5 380

MD(V)750/3 to 6SE3190-0DX87-2DA0 20 6SE3214-0TP87-0RA0 40 15 10 2.5 950

MDV7500/3 6SE3222-4TP87-0RA0 20 30 20 5 950

MDV220/4 to

MD(V)3700/4

Your local Siemens sales office can provide you with information about

the range of electronic braking modules which can be supplied for these drive inverters.

Braking resistors for EBU

Resistance type Order No. Continuous rated

power

Brief peak

rated value

Resist-

ance

Notes

A 6SE3213-6SP87-0RA0 1.25 7.5 20 Only for line supply voltages

B 6SE3221-4SP87-0RA0 2.5 15 10 208 V - 240 V

D 6SE3214-0TP87-0RA0 2.5 15 40 Only for line supply voltages

E 6SE3222-4TP87-0RA0 5 30 20 380 V - 500 V

Notes:

When braking, the inverter (MMV) or the electronic braking module (option for MDV) dissipates the braking energy of the

motor and load to the externally mounted resistor. The lower the value of the external resistor, then the greater the braking

power. The resistors are able to dissipate large amounts of energy for short periods, but when used continuously, the rating is

considerably less. In order to protect the resistors against overload, the drive inverter / ‘braking chopper’ (P070), or the EBU

limits its own duty cycle (the ratio between the ON time and the OFF time) to 5% (= 12 seconds in 4 minutes! drive inverter) or

10 % (EBU). This reduces the maximum dissipation level to the values shown in Fig. 3.

If the electronic braking module is used for high load moments of inertia (or extremely short ramp-down times), it may be

necessary to connect additional resistors in parallel or connect several electronic braking modules (EBUs) in parallel. In this

case, the resistor must be adequately rated to withstand the resulting power dissipation. However, the resistance may not be

less than 40

W for 230V and 80W for 400V drive units. (more detailed information is provided in Chapter 3)

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