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General FAQs
Overspeed, acceleration and underspeed. All of these can be simultaneously configured to all four relays. This allows for maximum configuration flexibility.
By periodically testing (parts of) a system the PFD (probability of failure on demand) is reduced, leading to higher reliability. SpeedSys 300 allows for proof testing of tailing equipment by switching its relays through the software or activating the proof test IN. The transmitter itself has a typical proof test interval of ≥ 10 years.
The sensor cable lengths are not defined by the SpeedSys transmitter, but by the sensor and application specifics.
The standard maximum length for USB 2.0 is 5 m (16 ft).
No, the sensor input circuitry is ATEX certified (zone 0 & 20). This gives the hardware the advanced ability to monitor the sensors and detect sensor failure. With external barriers this is not possible.
The configuration of the commissioned unit needs to be uploaded to the replacing unit after that the units can be swapped.
The SpeedSys modules are mounted on a DIN rail, but a 19” rack adapter can be custom made.
The proof test can be activated remotely on the SpeedSys 300, but not through the MODBUS. SpeedSys 300 has a special proof test IN.
Yes, every transmitter gets a unique address (max. 247 per MODBUS line) within the MODBUS protocol from which information can be requested.
No, SIL3 protection can only be obtained with SpeedSys 300 in a 2oo3 voting structure.
