Siemens EK 726 Series Instrukcja Obsługi Strona 73
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ENGINEERING INFORMATION AND INSTRUCTIONS
MICROMASTER
MICROMASTER Vector
MIDIMASTER Vector
SIEMENS DA 64 – 2002/2003
3/49 Version D
3.16 Electronic braking module (EBU)
and braking resistors for
MIDIMASTER Vector
The kinetic energy of the motor and load is fed back into the
drive inverter when using the optional electronic braking
module (EBU) and braking resistor. It is then converted into
heat in the external braking resistors which significantly
improves the braking effect. The DC link voltage increases
during regenerative operation, whereby the electronic braking
module and the braking resistor limit this increase.
A reference voltage is established from the line supply
voltage. This is compared with the DC link voltage, derived in
the inverter. If the DC link voltage is excessively high (which
occurs during regenerative braking), the circuit-breaker (of
the EBU) is tripped and the voltage is reduced by dissipating
some of the energy in the external resistors (energy from the
DC link). The continuous rated power of the braking resistors
is 10 % of the peak power. The minimum permissible
resistance value for a maximum power of the individual brake
modules is listed in the following tables. The switch-on
duration of the circuit-breaker (of the EBU) is limited to
approx. 10 % (typically 5 s ON, 45 s OFF!), in order to protect
the external resistors from excessive energy dissipation.
The electronic braking modules (EBU) should be mounted
directly next to the MIDIMASTER Vector and connected to
the DC link and the braking resistor using short, shielded
connecting cables.
-
+
RES/
WID
NC
NO
C
PE
L2
L1
RES/
WID
}
}
}
}
To MIDIMASTER
Resistor connections
Fault signaling relay connecti
o
Power supply
DC-
DC+
Fig. 2 - Terminal block diagram of the electronic
braking module (EBU)
92
197
250
Terminal strip X1
(refer to Section 4.2)
Cable entries
Cables ties
Depth: 146 mm
Mounting holes: 4 x 6.5 mm diameter
Weight: 2.2 kg
A
ll measurements are in millimeters.
A
B C
A
B
C
104
E
Internal fuse, 38 mm
(100 mA, slow-acting)
ON/fault LED
D
E
D
DUTY CYCLE
CONTROL
DRIVER
POWER TRANSISTOR CONTROL
RES/WID
RES/WID
POWER
SUPPLY
FAULT
MONITOR-
ING
L1
L2
To
MIDIMASTER
Vector
NO
NC
COMMON
LED
RELAY
POWER
TRANSISTOR
EXTERNAL
RESIS-
TORS
AND
THERMAL
SWITCH
AC
INPUT
+
-
Fi
g
. 1: Block dia
g
ram of the electronic brakin
g
module
REF.
VOLTAGE
AND
COMPAR ATOR
Note: The ‘NO’ contact is closed when the
system is operating correctly; it is open when
the system is faulted.
Fig. 3 – Block diagram of the electronic braking module
with external braking resistor
EBU technical data
Ambient temperature: 0 to 40 °C
Storage/transport temperature: -30 to +85 °C
Degree of protection of the EBU: IP20
Degree of protection of the ext. braking resistors: IP20
Air humidity (moisture condensation is not permissible):
0 to 95 %
- Catalog DA 64 1
- 2002 / 2003 1
- > empty page< 2
- > empty page < 5
- 1. Introduction 1/1 6
- 1. INTRODUCTION 8
- 1.1 Product overview 8
- 1.2 Technical data 9
- MICROMASTER 10
- MICROMASTER Vector 10
- MIDIMASTER Vector 10
- SIEMENS DA 64 – 2002/2003 10
- 1.4 Quotation text 12
- 2. Technical Description 2/1 14
- 2. TECHNICAL DESCRIPTION 16
- 2.1 Power section 16
- 2.2 Closed-loop PID control 21
- 3.2 Dimensions and weights 27
- 8,5 mm 28
- 3.5 Line supply 32
- 3.6 Control connections 33
- 3.8 Max. motor cable lengths 39
- 3.9 De-rating 40
- 3/17 Version D 41
- Motor torque utilization: 42
- Force-ventilated motors: 42
- Maximum speeds: 42
- Motor protection: 43
- 6SE3290-0BA87-0FB0 47
- 6SE3290-0BA87-0FB2 47
- Version D 3/24 48
- 3/25 Version D 49
- Version D 3/26 50
- 3/27 Version D 51
- 6SE3290-0DC87-0FA4 52
- 6SE3290-0DC87-0FB4 52
- 3/29 Version D 53
- Version D 3/30 54
- 3/31 Version D 55
- Version D 3/32 56
- 3/33 Version D 57
- 3/51 Version D 75
- Communications / interfaces 77
- SIEMENS DA 64 – 2001/2002 77
- 4.4 Control terminal strips 79
- 4.6 PROFIBUS module CB15 81
- COMMUNICATIONS / INTERFACES 84
- DRIVE-MONITOR. Both 84
- 4.12 Parameter list 87
- 5.2 MIDIMASTER Vector 96
- 6 Options 100
- 6. Options 102
- 6.2. Ordering data, filters 103
- 6.3. Ordering data, reactors 109
- OPTIONEN 112
- Line reactor* 113
- 6.6 Recommended protection 117
- Information on COMBIMASTER 120
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