The DCS800 can be configured to work with a variety of feedback options to monitor motor and line speed. Together with the standard interface, the drive can read up to one tachometer and two encoders simultaneously. Resolvers can be used in place of encoders. “Encoderless” operation, using motor EMF as feedback, is also possible and an excellent choice in many applications.
The drive has a tachometer interface as standard for tachometers with maximum voltages of 8 to 270 Vdc. For AC tachometers with rectifiers, the drive has a filter to smooth out the signal going to the drive.
The drive also has one encoder interface as standard, to operate with single-ended and differential pulse encoders. The non-isolated interface works with 5Vdc and 24Vdc devices, and also 12Vdc devices for drives over 1000 Amps (D5 and over).
A second pulse encoder interface (non-isolated) can be used with the addition of one of the RTAC pulse encoder interface adapters. The RTAC-03 is used for TTL encoders; the RTAC-01 is used for other types. To add an isolated pulse encoder interface, the IOB-03 can be used. The IOB-03 is separately mounted on DIN rail.
||5 & 24 Vdc TTL encoder interface
||15 & 24 Vdc encoder interface
||Analog and encoder I/O module