characteristics of thyristor-controller, type a...

• Designed for speeds up to 1,2 m/s.
• Relays for the power contactors and the mechanical brake (controlled by the rated value and the actual value of the speed).
• Deceleration monitoring with relay output.
• Analog and digital sensor-input on the same circuit card (direction monitoring possible).
• Use of pulse-generator (Incremental Sensor) with one track or two tracks, from 60 ppr. to 2x1024 ppr. possible.
• 5 selectable speeds: v2, v1, v0, vN, vR.
• Landing with creeping speed
• Common failure relay for phase-loss, sensor failure, overspeed, speed-hysteresis

Thyristor-controller of type a.../.../400 can be equiped with a full controlled 3-phase rectifier. The advantage is a more smooth brake-current than the single phase rectifier supplies. This leads to a much smaller motor-noise during deceleration.

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