item Controller BL 1-04 /C
― Product manual
70
Cable type and configuration [X1]
The cable name that is stated refers to a cable made by Lapp. However, it is also possible to use comparable cables from
other manufacturers, for example Lütze or Helukabel.
LAPP KABEL UNITRONIC LiYCY (TP); 25 x 0.25mm²
9.12 Connector: STO [X3]
DANGER
Dangerous electrical voltage!
Use only PELV circuits for the STO wiring!
Make sure that no jumpers or the like can be inserted parallel to the safety wiring. For example, use the maximum wire
cross-section of 1.5 mm² or suitable wire end sleeves with insulating collars for the connection to the associated connector.
Configuration on the device [X3]
SC 3.81/08/90F 3.2SN BK BX
Mating connector
BCF 3.81/08/180F SN BK BX
Pin assignment [X3]
1
8
Figure 32: STO connector [X3]
Pin
Name
Description
1
STOA
Control input A for the STO function
2
GNDA
Reference potential for STO-A
3
STOB
Control input B for the STO function
4
GNDB
Reference potential for STO-B
5
DIN6
Connected to X1, pin 22
6
DIN7
Connected to X1, pin 10
7
DOUT0
Connected to X1, pin 12
8
GND
Reference potential for the auxiliary supply voltage
To ensure the STO ("Safe Torque Off") function, the control inputs STOA and STOB must be connected in a dual-channel
manner with parallel wiring. See section 4.6.1 Safe torque off (STO) on page 23. This type of connection can be part of an
emergency stop circuit or safety door setup, for example.
