... % 2s, every per 10 mintutes 2.Ambient temperature(no de-rate needed: -10-50 centigrade Technical Features of GK800 ... -less vector control without PG 2)0Hz: 200% (close-loop vector control with PG)Positioning accuracy +/-1 line pulseBasic functionsStart ... machine, roving machine, compressor, crusher, pump, fan, etc. close loop vector control variable frequency AC drive for lift elevator escalator