1.the output signal can be choosed and designated freely 2.automatic startup or startup by manual first XY- ... feedback input: 4—20mA, 0—10mA, 0—5V, 1—5Vvalve position feedback input: 0—10mA, 4—20mA, 0 ... —5V,1—5Vvalve position feedback output: 4—20mA, 0—10mA ... or 0—5V, 1—5VDCmanual/automatic state output: break, automatic state; through, ...