Central Braking Modules Siemens

Обзор

Central Braking Modules limit the DC link voltage at a central location in the drive line-up when the motors are operating in generator mode and energy recovery to the supply system is not possible. If the voltage of the DC busbar exceeds a limit value in generator operation, an externally installed braking resistor is switched in, thus restricting the voltage from increasing further. The regenerative energy is converted into heat. The braking resistor is switched in by the Braking Unit integrated in the Cabinet Module, which is equipped with state-of-the-art MOSFET/IGBT semiconductors.

Central Braking Modules are an alternative to the optional Braking Modules (options L61/L62 or L64/L65) and are particularly suitable when high braking powers are required in a drive lineup. The required braking power can also be increased by connecting units in parallel.

Line voltage	Line voltage	Braking power P₁₅₀
380 … 480 V 3 AC	510 … 720 V DC	500 kW / 1000 kW
500 … 600 V 3 AC	675 … 900 V DC	550 kW / 1100 kW
660 … 690 V 3 AC	890 … 1035 V DC	630 kW / 1200 kW

Central Braking Modules operate as fully stand-alone modules. They only require a connection to the DC link. An external control voltage is not required.

The built-in fan means that Central Braking Modules are also suitable for high continuous power levels.

Дизайн

The Central Braking Module is a cabinet unit with integrated braking chopper. Using state-of-the-art MOSFET/IGBT semiconductors, the power unit controls when the braking resistor is switched-in.

Central Braking Modules are designed as a 400 mm wide cabinet module. The connection to the DC link busbars is established through fuses.

Central Braking Modules require braking resistors that must be externally mounted and which can be ordered separately. The cables to the resistors can be connected to lugs which are specially prepared for plant application and which are located in the connection area of the cabinet.

The power units have diagnostics LEDs for the display of faults and also a control output for the communication of faults. The Central Braking Module can be disabled externally via a control input.

The engineering specifications must be applied regarding the arrangement in the DC link line-up. For additional information, please refer to the SINAMICS Low Voltage Engineering Manual.

Характеристика

Central Braking Modules are dimensioned for braking powers with the following duty cycles:

Braking powers of the Central Braking Modules

The braking powers are subject to a cycle time of 600 s. P₁₅₀ is assumed to be the rated braking power. The braking resistors can be assigned according to these power ratings.

In most applications, Central Braking Modules are only used for occasional braking operations, e.g. stopping a drive in an emergency. Low-cost braking resistors in IP21 degree of protection are specifically offered for these types of applications; these braking resistors are dimensioned for braking powers P_BR with the following duty cycle:

Duty cycle for braking resistors

Braking resistors with a higher braking power and shorter cycle times are available on request.

Интеграция

Example of connection of a Central Braking Module

Опции

The following options are available for the Central Braking Modules:

Available options	Order code
Cabinet anti-condensation heating	L55
Base 100 mm high, RAL 7022	M06
Cable-marshalling space 200 mm high, RAL 7035	M07
IP21 degree of protection	M21
IP23 degree of protection	M23
Side panel mounted at the right	M26
Side panel mounted at the left	M27
IP43 degree of protection	M43
IP54 degree of protection	M54
Closed cabinet door, air intake from below through floor opening	M59
DC busbar system (I_d = 1170 A, 1 × 60 × 10 mm)	M80
DC busbar system (I_d = 1500 A, 1 × 80 × 10 mm)	M81
DC busbar system (I_d = 1840 A, 1 × 100 × 10 mm)	M82
DC busbar system (I_d = 2150 A, 2 × 60 × 10 mm)	M83
DC busbar system (I_d = 2730 A, 2 × 80 × 10 mm)	M84
DC busbar system (I_d = 3320 A, 2 × 100 × 10 mm)	M85
DC busbar system (I_d = 3720 A, 3 × 80 × 10 mm)	M86
DC busbar system (I_d = 4480 A, 3 × 100 × 10 mm)	M87
Crane transport assembly (top-mounted)	M90
Special paint finish for cabinet	Y09
Factory assembly as transport units	Y11
One-line label for system identification, 40 × 80 mm	Y31
Two-line label for system identification, 40 × 180 mm	Y32
Four-line label for system identification, 40 × 180 mm	Y33
Customer documentation (circuit diagram, terminal diagram, layout diagram) in DXF format	D02
Preliminary version of customer documentation in PDF format	D14
Documentation in English/French	D58
Documentation in English/Spanish	D60
Documentation in English/Italian	D80
Without Operating Instructions	D99
Rating plate data in English/French	T58
Rating plate data in English/Spanish	T60
Rating plate data in English/Italian	T80
Visual acceptance	F03
Function test without connected motor	F71
Insulation test	F77
Customer-specific acceptance inspections (on request)	F97

Option selection matrix for Central Braking Modules

Certain options can mutually exclude one another
(options that are not involved are not shown).

✓	Possible combination
–	Combination not possible

Mechanical/electrical options

	M06	M07	M21	M23	M26	M27	M43	M54	M90	Y11	Y31	Y32	Y33
M06		–	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
M07	–		✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
M21	✓	✓		–	✓	✓	–	–	✓	✓	✓	✓	✓
M23	✓	✓	–		✓	✓	–	–	✓	✓	✓	✓	✓
M26	✓	✓	✓	✓		–	✓	✓	✓	✓	✓	✓	✓
M27	✓	✓	✓	✓	–		✓	✓	✓	✓	✓	✓	✓
M43	✓	✓	–	–	✓	✓		–	✓	✓	✓	✓	✓
M54	✓	✓	–	–	✓	✓	–		✓	✓	✓	✓	✓
M90	✓	✓	✓	✓	✓	✓	✓	✓		–	✓	✓	✓
Y11	✓	✓	✓	✓	✓	✓	✓	✓	–		✓	✓	✓
Y31	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓		–	–
Y32	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	–		–
Y33	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	–	–

Mechanical options, DC busbar (busbars between individual Cabinet Modules)

	M80	M81	M82	M83	M84	M85	M86	M87
M80		–	–	✓	–	–	–	–
M81	–		–	–	✓	–	✓	–
M82	–	–		–	–	✓	–	✓
M83	✓	–	–		–	–	–	–
M84	–	✓	–	–		–	✓	–
M85	–	–	✓	–	–		–	✓
M86	–	✓	–	–	✓	–		–
M87	–	–	✓	–	–	✓	–

Documentation

	D02	D14	D58	D60	D80	D99
D02		✓	✓	✓	✓	–
D14	✓		✓	✓	✓	–
D58	✓	✓		–	–	–
D60	✓	✓	–		–	–
D80	✓	✓	–	–		–
D99	–	–	–	–	–

Rating plate data

	T58	T60	T80
T58		–	–
T60	–		–
T80	–	–

Технические данные

		Central Braking Modules
		6SL3700-1AE35-0AA3	6SL3700-1AE41-0AA3	6SL3700-1AF35-5AA3	6SL3700-1AF41-1AA3	6SL3700-1AH36-3AA3	6SL3700-1AH41-2AA3
Line voltage		380 … 480 V		500 … 600 V		660 … 690 V
Braking power P₁₅₀	kW	500	1000	550	1100	630	1200
Continuous braking power P_DB	kW	200	370	220	420	240	460
Braking current for P₁₅₀	A	650	1200	580	1100	520	1000
Current demand ¹⁾
230 V 2 AC	A	0.4	0.4	0.4	0.4	0.4	0.4
Power loss, max. ²⁾ at 50 Hz 400/500/690 V	kW	0.8	1.5	0.8	1.5	0.8	1.5
DC link capacitance	μF	8160	9720	7640	8680	7640	8680
Cooling air requirement	m³/s	0.14	0.14	0.14	0.14	0.14	0.14
Sound pressure level L_pA (1 m) at 50/60 Hz	dB	55	55	55	55	55	55
Braking resistor connection terminal		M12 screws	M12 screws	M12 screws	M12 screws	M12 screws	M12 screws
Conductor cross-section, max. (IEC)	mm²	2 × 240	2 × 240	2 × 240	2 × 240	2 × 240	2 × 240
PE/GND connection		PE bar	PE bar	PE bar	PE bar	PE bar	PE bar
Busbar cross-section	mm²	600	600	600	600	600	600
Conductor cross-section, max. (IEC)	mm²	240	240	240	240	240	240
Degree of protection		IP20	IP20	IP20	IP20	IP20	IP20
Dimensions
Width	mm	400	400	400	400	400	400
Height ³⁾	mm	2200	2200	2200	2200	2200	2200
Depth	mm	600	600	600	600	600	600
Weight, approx.	kg	230	230	230	230	230	230
Frame size	mm	400	400	400	400	400	400

¹⁾ Current demand of the fans.

²⁾ The specified power loss represents the maximum value at 100 % utilization. The value is lower under normal operating conditions.

³⁾ The cabinet height increases by 250 mm with IP21 degree of protection, and by 400 mm with IP23, IP43 and IP54 degrees of protection.

		Braking resistors
		6SL3000-1BE35-0AA0	6SL3000-1BE41-0AA0	6SL3000-1BF35-5AA0	6SL3000-1BF41-1AA0	6SL3000-1BH36-3AA0	6SL3000-1BH41-2AA0
Line voltage		380 … 480 V		500 … 600 V		660 … 690 V
Braking power P_BR	kW	500	1000	550	1100	630	1200
Continuous braking power P_DB	kW	23	58	34	62	42	75
Resistance value	Ω	0.95	0.49	1.35	0.69	1.8	0.95
Degree of protection		IP21	IP21	IP21	IP21	IP21	IP21
Dimensions
Width	mm	960	960	960	960	960	960
Height	mm	620	620	620	620	620	620
Depth	mm	790	1430	1110	1430	1110	1430
Weight, approx.	kg	82	170	110	180	124	196

	M06	M07	M21	M23	M26	M27	M43	M54	M90	Y11	Y31	Y32	Y33
M06		–	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
M07	–		✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
M21	✓	✓		–	✓	✓	–	–	✓	✓	✓	✓	✓
M23	✓	✓	–		✓	✓	–	–	✓	✓	✓	✓	✓
M26	✓	✓	✓	✓		–	✓	✓	✓	✓	✓	✓	✓
M27	✓	✓	✓	✓	–		✓	✓	✓	✓	✓	✓	✓
M43	✓	✓	–	–	✓	✓		–	✓	✓	✓	✓	✓
M54	✓	✓	–	–	✓	✓	–		✓	✓	✓	✓	✓
M90	✓	✓	✓	✓	✓	✓	✓	✓		–	✓	✓	✓
Y11	✓	✓	✓	✓	✓	✓	✓	✓	–		✓	✓	✓
Y31	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓		–	–
Y32	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	–		–
Y33	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	–	–

	M80	M81	M82	M83	M84	M85	M86	M87
M80		–	–	✓	–	–	–	–
M81	–		–	–	✓	–	✓	–
M82	–	–		–	–	✓	–	✓
M83	✓	–	–		–	–	–	–
M84	–	✓	–	–		–	✓	–
M85	–	–	✓	–	–		–	✓
M86	–	✓	–	–	✓	–		–
M87	–	–	✓	–	–	✓	–

	D02	D14	D58	D60	D80	D99
D02		✓	✓	✓	✓	–
D14	✓		✓	✓	✓	–
D58	✓	✓		–	–	–
D60	✓	✓	–		–	–
D80	✓	✓	–	–		–
D99	–	–	–	–	–

	M06	M07	M21	M23	M26	M27	M43	M54	M90	Y11	Y31	Y32	Y33
M06		–	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
M07	–		✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
M21	✓	✓		–	✓	✓	–	–	✓	✓	✓	✓	✓
M23	✓	✓	–		✓	✓	–	–	✓	✓	✓	✓	✓
M26	✓	✓	✓	✓		–	✓	✓	✓	✓	✓	✓	✓
M27	✓	✓	✓	✓	–		✓	✓	✓	✓	✓	✓	✓
M43	✓	✓	–	–	✓	✓		–	✓	✓	✓	✓	✓
M54	✓	✓	–	–	✓	✓	–		✓	✓	✓	✓	✓
M90	✓	✓	✓	✓	✓	✓	✓	✓		–	✓	✓	✓
Y11	✓	✓	✓	✓	✓	✓	✓	✓	–		✓	✓	✓
Y31	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓		–	–
Y32	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	–		–
Y33	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	–	–

	M80	M81	M82	M83	M84	M85	M86	M87
M80		–	–	✓	–	–	–	–
M81	–		–	–	✓	–	✓	–
M82	–	–		–	–	✓	–	✓
M83	✓	–	–		–	–	–	–
M84	–	✓	–	–		–	✓	–
M85	–	–	✓	–	–		–	✓
M86	–	✓	–	–	✓	–		–
M87	–	–	✓	–	–	✓	–

	D02	D14	D58	D60	D80	D99
D02		✓	✓	✓	✓	–
D14	✓		✓	✓	✓	–
D58	✓	✓		–	–	–
D60	✓	✓	–		–	–
D80	✓	✓	–	–		–
D99	–	–	–	–	–