NORD Drivesystems BU0220 - Manual (Page 33)

3 Displays and diagnosis
BU 0220 GB-0912 Subject to technical amendments 33
3.1.2.3 I/O Displays
The status of additional digital inputs and outputs on the BUS module is indicated by corresponding LEDs
(except for SK TU4-PBR(-C)).
I/O Channel Status display Meaning
Customer unit SK CU4-PBR
LED (green)
Digital input 1
D1
ON High potential on terminal C1
OFF Low potential on terminal C1
Digital input 2
D2
ON High potential on terminal C2
OFF Low potential on terminal C2
Technology unit SK TU4-PBR-M12(-C)
LED (yellow)
Digital input 1
DI1
ON High potential on terminal 19 or on M12 socket DI1
OFF Low potential on terminal 19 or on M12 socket DI1
Digital input 2
DI2
ON High potential on terminal 25 or on M12 socket DI2
OFF Low potential on terminal 25 or on M12 socket DI2
Digital input 3
DI3
ON High potential on terminal 20 or on M12 socket DI3
OFF Low potential on terminal 20 or on M12 socket DI3
Digital input 4
DI4
ON High potential on terminal 26 or on M12 socket DI4
OFF Low potential on terminal 26 or on M12 socket DI4
Digital output 1
DO1
ON High potential on terminal 33 or on M12 socket DO1
OFF Low potential on terminal 33 or on M12 socket DO1
Digital output 2
DO2
ON High potential on terminal 34 or on M12 socket DO1
OFF Low potential on terminal 34 or on M12 socket DO1