4.3.3.2
Implementation
In the axis module, the "safe torque off" connection is implemented with
optocouplers. The optocouplers isolate the following areas electrically from
each other:
The digital inputs and outputs:
ƒ
–
input X6/SI1 (controller enable/inhibit)
–
input X6/SI2 (pulse enable/inhibit)
–
brake output X6/B+, B−
–
output X6/SO ("safe torque off" active/inactive)
The circuit for the internal control
ƒ
The final power stage
ƒ
X6
Sl1
Sl2
S24
SO
GND
B+
B-
X25
BD2
BD1
Fig. 4−11
Implementation of the "safe torque off" function
Area 1:
Area 2:
Area 3:
(
Stop!
Use insulated wire end ferrules when wiring the "safe torque off"
circuits to X6.
EDKCSEX064 DE/EN/FR 4.0
U
V
W
µP
>1
X
Y
Z
Inputs and outputs
Circuit for the internal control
Power output stage
l
Electrical installation
Control terminals
Safe torque off
&
&
&
&
&
&
4
X2
U
V
W
ECSXA100
119