User Manual 08/2003 Edition

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2 2 Installing and Connecting–up 02.99 05.03 2.2 Electrical system requirements Regenerative feedback protection for 48 V supply (300 W motor) SITOP modular 48 V 2-36 L+ M or Depending on the type of power supply, the following possibilities are available to provide regenerative feedback protection when the motors brake: Non–regulated 48 V power supply (transformer, rectifier) The regenerative feedback protection depends on the following factors: Effective total moment of inertia Coincidence factor Power supply used (output rating) Regulated 48 V power supply (SITOP power) Regenerative feedback protection with diode and capacitor An example is shown in Fig. 2-11 where up to 3 drives can be operated under the following conditions: – Effective overall moment of inertia = motor moment of inertia – Coincidence factor = 1 – Braking from rated speed in S3 duty 2 SITOP power 24 V L+ M Diode (adapt the current load capacity to SITOP, if required, use a heatsink) 48 V to the remaining system M SIMODRIVE Elko POSMO A, 1 15000 µF / 100 V Fig. 2-11 Example: Regenerative feedback protection with diode and capacitor SIMODRIVE POSMO A, 3 Regenerative feedback protection with Power Management Module 48 V DC (DC-PMM/48V) 1 DC-PMM/48V can absorb a braking energy of 15 Ws. Example: – 3 motors each with a braking energy = 4.5 Ws – Max. current load capability = 25 A – Coincidence factor = 1 ––> A maximum of 3 POSMO A –300 W can be connected to 1 DC–PMM/48V. (at the rated motor current = 5.25 A, refer to Table 2-7 as a result of the maximum braking energy of 15 Ws) Siemens AG 2003 All rights reserved SIMODRIVE POSMO A User Manual (POS1) – 08.03 Edition
02.99 08.03 2.3 Connection and wiring overview PROFIBUS interface First node (in this case, the master) ––> switch in the terminating resistor Potential bonding conductor (refer to Chapter 2.3.2) +24 V / 48 V Ground +24 V Ground A cable B cable Siemens AG 2003 All rights reserved SIMODRIVE POSMO A User Manual (POS1) – 08.03 Edition L1 5M 5L+ X9 X6 3L+ 3M 1VS I/Q1 1M 2VS I/Q2 X5 B1A1 X3 X1 X2 e.g. SIMATIC S7-300 DP) B2 A2 X4 6L+ 6M 2M 4L+ 4M S1 X7 2.3 Connection and wiring overview L1 5M 5L+ X9 X6 X2 3L+ 3M 1VS I/Q1 1M 2VS I/Q2 Last node (here, to the right) ––> switch in the terminating resistor (refer to Chapter 2.3.1) For the slaves, set the PROFIBUS node address (refer to Chapter 2.3.1) +24 V / 48 V Ground Power Management Module (DC-PMM) (optional) e.g. BERO 2 e.g. BERO 1 Protective conductor (PE) 1) (refer to Chapter 2.3.2) +24 V Ground +24 V / 48 V Ground 1) The protective conductor may not be interrupted (refer to Chapter 2.3.2) 2 Installing and Connecting–up X5 B1A1 X3 X1 B2 A2 X4 6L+ 6M 2M e.g. relay 4L+ 4M S1 X7 24 V-electronics power supply (e.g. SITOP e.g. power) relay (optional) Load power supply (e.g. SITOP power) e.g. switch Fig. 2-12 Connection and wiring overview (example with DC-PMM and the electronics power supply) 2-37 2
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6 6 Fault Handling and Diagnostics
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7 7 Installation and Service 04.01
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A A Abbreviations 04.01 GSD HEX HW
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A A Abbreviations 04.01 STB STW SW
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B B References 05.03 Electronic Doc
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B B References 05.03 B-246 Space fo
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C C Dimension Drawings 02.99 08.03
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C C Dimension Drawings 02.99 C.2 Di
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D D EC Declaration of Conformity 08
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D D EC Declaration of Conformity 08
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E E Index 08.03 Diagnostics LED, 1-
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E E Index 08.03 O Offline with Simo
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E E Index 08.03 Shaft load capabili
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E E Index 08.03 E-266 Space for you
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