1.5.2.1 Technical specifications
1.5.2.1.1 Power Specification
Power Specification SOMANET Circulo
Circulo
7
Circulo 9
Nominal supply voltage DC
24-55 V
Minimum supply voltage DC *
14 V
Maximum voltage DC **
60 V
Maximum continuous phase
current RMS
I
8 A
20 A
Maximum peak phase current RMS
***
I
24 A
60 A
Maximum efficiency
99 %
Standby power consumption
TBD
* The minimal supply voltage is sufficient for configuring thr drive but will not turn a motor
** The maximum supply voltage is only for buffering peaks when braking.
*** The maximum peak current can be applied as all of the following criteria are fulfilled:
1. Duration of one peak doesn’t exceed 10 seconds
2. Mounting temperature and ambient temperature within operating range
3. Over any period of 90 seconds, the RMS value I
of the current does not exceed the allowable
continuous current I
. In the example of the current consisting of pulses with I = I
and idle
phases of I = 0 between them, the maximum allowable duty cycle would be 11.1% (e.g. 10 seconds of I = I
, followed by 80 seconds of I = 0). In a more general way, this requirement can be written as
cont,max
peak,max
RMS,90s
cont,max
peak,max
peak,max
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