Siemens EK 726 Series Manual de Serviço descarregar pdf (Página 74)

ENGINEERING INFORMATION AND INSTRUCTIONS

MICROMASTER

MICROMASTER Vector

MIDIMASTER Vector

SIEMENS DA 64 – 2002/2003

Version D 3/50

Time (s)

Permissible load

for

intermittent

duty

Permissible

load for

continuous duty

10%

50%

100%

Resistor type A B D E

Dimensions L x W x D (mm) 560 x 185 x 150 560 x 365 x 150 560 x 365 x 150 495 x 425 x 300

MIDIMASTER Vector

line supply voltage (V)

208 - 240 208 - 240 380 - 500 380 - 500

Resistance (W)

20 10 40 20

Surge power (kW) 7.5 15 15 30

Average power (kW) 1.25 2.5 2.5 5

Order No.

6SE3213-6SP87-0RA0 6SE3221-4SP87-0RA0 6SE3214-0TP87-0RA0 6SE3222-4TP87-0RA0

While braking, the electronic braking module discharges the energy of the motor and load into the external power resistors. The

lower the value of the external resistor, than the higher the braking power. The resistors can discharge a significant amount of

energy for a short period of time. However, if they are continually used, then the amount of energy which can be discharged is

significantly lower. In order to protect the resistors against overload, the EBU limits its own operating cycle (the ratio between the

ON time and the OFF time) to 10 %. This means that the maximum discharge power is reduced to the value shown in Fig. 3.

Drive inverter

EBU Associated resistances

Type Order No.

Minimum total

resistance for

each EBU

Order No.

Resist-

ance

Brief peak rated

value (5 s)

Power for

a switch-

duration

=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 are available for this drive inverter.

Braking resistors

Resistor type Order No. Cont. rated power

Brief rated

peak power

Resistance

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

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

necessary to connect additional resistors in parallel or to connect several electronic braking modules in parallel.

Fig. 4 - Cycle diagram for the electronic

braking module

1 2 ... 69 70 71 72 73 74 75 76 77 78 79 ... 119 120

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