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1. What is the 6SE7036-0EF85-0EA0 and what does it do?
The 6SE7036-0EF85-0EA0 is a PET1 Control and Pre-charging Module for the Siemens SIMOVERT MASTERDRIVES series. It manages the pre-charging sequence for DC link capacitors in infeed units (Design E), protecting the system from damaging inrush currents during startup. The module also includes a PHASE interface for proper phase synchronization .
2. Is this product still in production?
No. This product was discontinued on October 6, 2011 (PLM PM410 – Product Support Discontinued). It is no longer available from Siemens directly but remains available as a spare part from specialized industrial suppliers offering "New Factory Sealed" (NFS) or reconditioned units. The product has a migration path to the LV SINAMICS series .
3. What are the typical symptoms of a faulty PET1 module?
Common symptoms include: drive infeed unit not starting, pre-charging failure faults, DC link undervoltage errors, or intermittent fault codes during power-up. Visual inspection may reveal burnt components, swollen capacitors, or damaged connectors. Always verify the correct 380-480V 3-phase AC supply before replacing the module .
4. What systems is this module compatible with?
The module is specifically designed for SIMOVERT MASTERDRIVES infeed units of Design E operating at 380-480V AC, 50/60 Hz. Before purchasing, verify the exact design version and voltage rating of your installed infeed unit to ensure compatibility .
5. Where can I source this product and what should I look for?
The 6SE7036-0EF85-0EA0 is available from specialized industrial spare parts suppliers offering NOS (New Old Stock) or reconditioned units. When sourcing, check:
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Supplier warranty period (typically 12 months for reconditioned units)
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Confirmation of "New Factory Sealed" or inspected condition
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Return policy and technical support availability
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Verify the exact version matches your installed board
