DriveAutomation
Technologies
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Drives
Circuit Diagrams
Perfect Harmony Gen IV
Slides from WC III
07 2_Hardware Identification Hardware Identification
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line current measurement
via “normal“ CTs
2-C3C signal name 2-C3C
from 2 – C4 signal coming from
sheet 2 in coordinate C4
(SCB-21) board SCB, terminal 21
voltage limiting
attenuation
resistors for line
side voltage
Siemens Industry 2010 - subject to modification Hardware Identification / page: 3 Drive Technologies Division
2-C3C signal name 2-C3C
to 5 – E2 signal going to
sheet 5 in coordinate E2
(CT2-X2) component CT2,
terminal X2
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circuit diagram for
3 cells / phase
low voltage
supply of the
power cells
temperature monitoring 170 oC
temperature monitoring 190 oC
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connection to the motor
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attenuation
resistors for motor
side voltage
motor current measurement
phase B via “Hall-effects“
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auxiliary voltage
(e.g.415 VAC)
transformer for auxiliary
voltage supply 120 VAC
fan operated
air flow via built-in
monitoring converter
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E-STOP
DI“0B“ <SOP>
H “Off“
DI“1B“ <SOP>
H “Remote“ to plant
/ DI“0B“ * / DI“1B“
“Local“
-SW2 reset button
in the control cabinet DI“3E“ <SOP>
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DriveAutomation
Technologies
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Drives
Cabinet Arrangement
Input Transformer FPC* Power Cell Output Water Management
Cabinet Cabinet Cabinet Cabinet Cabinet Unit
* Fused Pre-charge Control
07 2_Hardware Identification Hardware Identification
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Input Connections, Current Transformers and Attenuation
1
(1) …MΩ Attenuation Resistor
3
(2) CT Line Current L2, L3
(3) Input Connections
07 2_Hardware Identification Hardware Identification
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Drives
Transformer Secondary Connections / Temperature Switches
07 2_Hardware Identification Hardware Identification
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Taps on the Transformer / Cooling Hoses
Taps
-5% 0 +5% -5% 0 +5% -5% 0 +5%
Medium Voltage
Tap Cables
Typical “ex factory” connection is on “+5%”
07 2_Hardware Identification Hardware Identification
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Power Cell Connections / Mechanical Bypass Contactor
1 1 1
2
2
(1) Cell input (L1, L2, L3)
(2) Cell output T1, T2
(3) Mechanical Bypass
(4) Bypass Contactor
(seen from rear side)
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Drives
Power Cell Design
Film capacitors and power cell are
basically separate; the connection
is done by two plates with an Two plates run across the capacitors.
insulating plate in between in 1
“sandwich-style” (to minimize the
inductivity of the DC-link).
2 LED: UDC > 50 VDC
outlet water inlet water
FO link board
Power Cell (1) is separate
from capacitors (2)
DC-link film
capacitors 4
for training
reserved
purposes
capacitor bolts
3
2 Plates runs horizontal
across all three caps.
1 4 is connected to 2,
3 is connected to 1.
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Drives
Output Feedback / Hall Effects and Attenuation
Hall Effect Transformers on
the output (phase T2, T3)
Attenuation resistor on output phases T1, T2, T3
(one phase shown)
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Drives
Heat Exchanger / Fan Assembly
2
1
(1) Heat exchanger installed
(2) Heat exchanger unit “on shelf”
(3) Fan unit “on shelf”, top view
(4) Fan, side view
direction
of rotation
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