Power Supply/Sto - Siemens SINAMICS V90 Operating Instructions Manual

Connecting
4.4 24 V power supply/STO
4.4 24 V power supply/STO
Pin assignment
Interface Signal name
Maximum conductor cross-section: 1.5 mm
Wiring
Material damages and personal injuries by the drop of a hanging axis
When the servo system is used as a hanging axis, the axis will drop if the positive and
negative poles of the 24 V power supply are connected inversely. Unexpected drop of the
hanging axis can cause material damages and personal injuries.
• Make sure that the 24 V power supply is correctly connected.
Material damages and personal injuries by the drop of a hanging axis
Unexpected drop of the hanging axis can cause material damages and personal injuries.
• It is not allowed to use the STO with a hanging axis because the axis may drop.
118
STO 1 Safe torque off channel 1
STO + Power supply for safe torque off
STO 2 Safe torque off channel 2
+24 V Power supply, 24 V DC
M Power supply, 0 V DC
WARNING
WARNING
Description
2
Remarks
-
-
-
Voltage tolerance:
Without brake: -15% to +20%
•
With brake: -10% to +10%
•
Maximum current consumption:
Without brake: 1.5 A
•
With brake: 1.5 A + motor holding brake
•
rated current (See Section "Technical
data - servo motors (Page 61)")
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 04/2020, A5E37208830-008