Siemens 6RA70 specifications Applicable standards

6)Requirements to achieve control stability:

The control stability (closed-loop PI control) is referred to the rated motor speed and applies when the SIMOREG converter is warm. The following conditions are applicable:

•Temperature changes of ±10 °C.

•Line voltage changes corresponding to +10% / – 5% of the rated input voltage.

•Temperature coefficient of temperature-compensated tachometer 0.15‰ per 10 °K, (applies only to analog tachometer).

•Constant setpoint (14-bit resolution).

•Motor, load, and encoder are correctly aligned and the load is balanced.

7)Details of overload capability:

Following operation at rated load, base drive panels are capable of carrying 150% of rated load for 1 minute, followed by a period of light load operation of such duration that the rms load does not exceed rated continuous current. Base Drive Panels are designed for operation with heatsink air inlet temperatures up to 45°C.

5.4Applicable standards

UL508A

National Electrical Code 1999

Siemens Energy & Automation	5-5
SIMOREG DC Master Base Drive Panel	Operating Instructions