Woodward SEG HighPROTEC MRA4, Device Manual

Page: 491 / 510

Technical Data
Digital Inputs
Max. input voltage: 300 V DC/270 V AC
Input current: <4 mA
Reaction time: <20 ms
Fallback time: <30 ms
(Safe state of the digital inputs)
4 Switching thresholds: Un = 24 V DC, 48 V DC, 60 V DC,
110 V AC/DC, 230 V AC/DC
Un = 24 V DC:
Switching threshold 1 ON:
Switching threshold 1 OFF:
min. 19.2 V DC
max. 9.6 V DC
Un = 48 V/60V DC:
Switching threshold 2 ON:
Switching threshold 2 OFF:
Min. 42.6 V DC
max. 21.3 V DC
Un = 110 V AC/DC:
Switching threshold 3 ON:
Switching threshold 3 OFF:
min. 88.0 V DC/88.0 V AC
max. 44.0 V DC/44.0 V AC
Un = 230 V AC/DC:
Switching threshold 4 ON:
Switching threshold 4 OFF
min. 184 V DC/184 V AC
max. 92 V DC/92 V AC
Terminals: Screw-type terminals
EN MRA4 04/09 Page 491