1.2.1.2 General Specification
General Specification SOMANET
Circulo
Circulo 7 Circulo 9
Supported Communication
Standard
EtherCAT
Supported motors BLDC, PMSM
Integrated safety functions STO/SBC according to SIL3, Pl-e
Integrated Encoder 1 yes (optional), 20bit, absolute, multi-turn with battery
Integrated Encoder 2 yes (optional), 20bit, absolute
Hardware protections Overcurrent
Overvoltage
Undervoltage
Overtemperature
[1]
PWM deadtime
PWM shoot through
Dimensions (see also
dimension drawings)
Inner diameter: 20 mm
Outer diameter: 72.2 mm
Height: 21.3 mm
Inner diameter: 40 mm
Outer diameter: 92.2 mm
Height: 22.3 mm
Weight (without encoder rings) 92 g 133 g
Operating temperature 0 … 60°C ambient air (inside the enclosure)
0 … 70°C on the mounting surface (typically B-side / bearing flange of
the motor)
Max. installation altitude 2000 m
Storage temperature -35 to 85°C
Humidity Max 90 % rH
Sensors on-board 3 x I (two phases measured, one computed)
U
t
t
Encoder port 1 1 x BiSS-C / SSI
phase
DC
mosfet
core
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