Siemens 6SE7035-7WK20
Siemens 6SE7035-7WK20 – Frequency converters from the MASTERDRIVES range. Status: in phase-out at the manufacturer. Van Haelen supplies it refurbished, with a 24-month warranty.
Also written as: 6SE7 035-7WK20, 6SE70357WK20
The Siemens 6SE7035-7WK20 is a frequency converter or servo drive from the SIMOVERT (MASTERDRIVES) range. Status: in phase-out at the manufacturer. Key data: weight 417 kg, dimensions 22.0 x 22.0 x 4.5 cm, HS code 85044087. When replacing, keep the parameter set of the old unit; it makes setting up the replacement quick. Ask us about exchange, repair and a spare-parts pool for your installation.
Available as
Product data
| Manufacturer | Siemens |
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| Part number | 6SE7035-7WK20 |
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| Series | MASTERDRIVES |
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| Manufacturer status | in phase-out at the manufacturer |
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| ETIM | EC001857 |
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| HS code | 85044087 |
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| Weight | 417 kg |
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| Dimensions | 22.0 x 22.0 x 4.5 cm |
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Documentation from the manufacturer
All products of the MASTERDRIVES series
All Frequency converters
Faults and fixes 6SE7035-7WK20
Problems with 6SE7035-7WK20: F and A messages on the PMU
MASTERDRIVES and SIMOVERT show faults as an F number and warnings as an A number on the PMU or OP1S. Note the number and the load at that moment; the most common groups are DC-link voltage (under- or overvoltage), overcurrent, overtemperature and encoder faults. On units that have stood still for long, an unformed DC link is a known cause of a trip shortly after power-up.
What do I check when replacing a 6SE7035-7WK20?
Read out the parameter set (DriveMonitor or OP1S) and note the option boards (CBP, SBP, T100) and their slots; they move to the replacement. Check rating, voltage and the software version of the CU board against the parameter set. Reform the DC link before the first power-up if the unit has not been energised for more than a year.
Has the manufacturer discontinued the 6SE7035-7WK20, and what is the successor?
Siemens announced on 19 November 2010 the phase-out of the whole SIMOVERT MASTERDRIVES family: devices, cabinets, options and spare parts with the order numbers 6SE70, 6SE71, 6SY7 and 6SX7 (product note 44011534); the Vector Control units above 200 kW were cancelled on 1 October 2011, with migration to SINAMICS (54061207, 20 September 2011). Siemens' successor is SINAMICS, which Van Haelen supplies too. If the installation keeps running, Van Haelen supplies the 6SE7035-7WK20 refurbished and tested, with a 24-month warranty, and exchanges or repairs your own unit; a fault then does not force a conversion.
Fault not fixed: replace, exchange or repair the 6SE7035-7WK20?
Replacing from stock is the fastest route when a machine is down. Van Haelen supplies the 6SE7035-7WK20 refurbished: tested to this family's test protocol, with a test report per serial number, with a 24-month warranty. The current lead time is shown with the condition on this page. Prefer an exchange: you get a refurbished unit straight away and return the faulty one within 14 days. Repairing your own unit is also possible: diagnosis, then a fixed price.
What information should I send for a quick diagnosis?
A photo of the rating plate (order number, product version, firmware), the exact fault code or LED state, when the fault occurs (at power-up, on enable, under load) and what you have already tried. For PLCs an export of the diagnostic buffer, for drives the parameter set. With that we can usually say the same day whether replacing, exchanging or repairing is best.
Frequently asked questions
Is the 6SE7035-7WK20 still available?
The manufacturer has put the 6SE7035-7WK20 in phase-out; new units are getting scarce. Van Haelen supplies it from stock.
What does refurbished mean?
Cleaned, inspected, aged or critical components replaced and tested to our test protocol for this product family. You get a 24-month warranty, a test report and a serial number label.
Can I exchange or repair my faulty unit?
Yes. With an exchange Van Haelen supplies a refurbished unit straight away and you return the faulty one. With a repair you first get a diagnosis and then a fixed price, with test report and warranty.