Siemens SINAMICS V90 User Manual

Control functions
7.9 Absolute position system
SINAMICS V90, SIMOTICS S-1FL6
290 Operating Instructions, 04/2019, A5E36037884-007
7.9
Absolute position system
7.9.1
Overview
When the SINAMICS V90 servo drive uses a servo motor with an absolute encoder. the
current absolute position can be detected and transmitted to the controller. With this function
of the absolute position system, you can perform motion control task immediately after the
servo system is powered on, which means you do not have to carry out referencing or zero
position operation beforehand.
Restrictions
The absolute position system
cannot
be configured under the following conditions:
● Internal position control (IPos)
● Speed control (S)
● Torque control (T)
● Fast pulse train input position control (Fast PTI)
● Control change mode
● Strokeless coordinate system, for example, rotary shaft, infinitely long positioning
operation
● Change of electronic gear after referencing
● Use of alarm code output

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