Siemens SINAMICS V90 User Manual

Connecting
4.4 24 V power supply/STO
SINAMICS V90, SIMOTICS S-1FL6
162 Operating Instructions, 04/2019, A5E36037884-007
4.4
24 V power supply/STO
Pin assignment
Interface
Signal name
Description
Remarks
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 Voltage tolerance:
• Without brake: -15% to +20%
• With brake: -10% to +10%
Maximum current consumption:
• Without brake: 1.6 A
• With brake: 1.6 A + motor holding brake
rated current (See Section "Technical
data - servo motors (Page 68)")
M Power supply, 0 V DC
Maximum conductor cross-section: 1.5 mm
2
Wiring
WARNING
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.
WARNING
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.
Note
Using the STO function
The STO1, STO+ and STO2 are short connected at the factory setting.
When the STO function is to be used, you must remove the short
-circuit stick before
connectin
g the STO interfaces. The safety function of the servo drive is SIL 2 (EN61800-5-
2). If you do not need to use it any more, you must reinsert the short
-circuit stick; otherwise,
the motor will not run.
For detailed information about the STO function, refer
to "Safety Integrated basic functions
(Page
309)".

Siemens SINAMICS V90 Specifications

General

Power Range	0.05 kW to 7.0 kW
Protection Class	IP20
Communication	USS/Modbus RTU
Feedback	Incremental encoder
Input Voltage	1AC 200 V to 240 V, 3AC 380 V to 480 V
Control Modes	Position, Speed, Torque
Operating Temperature	0 °C to +40°C
Storage Temperature	-40°C to +70°C
Relative Humidity	5% to 95% (non-condensing)
Altitude	Up to 1000 m above sea level