System Manual – MOVITRAC® 07
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Description of applications
Project Planning
With hoists, select the motor power in accordance with the load type:
•
S1 (100 % cdf.): Select the motor power 1 level higher than the selected inverter pow-
er, e.g. for lengthy upwards travel or continuous elevators.
•
S3 (40 % cdf.): Select the motor power in accordance with the selected inverter pow-
er.
Regardless of the aforementioned guidelines, activate the hoisting function by selecting
operating mode P700 = VFC & HOIST.
Variable torque
load (pumps, fans)
In these applications, there is no chance of the motor suffering a thermal overload at low
speeds. Maximum load occurs at maximum speed. There are no overload peaks. Con-
sequently, select the size of MOVITRAC
®
07 and the motor so the continuous motor cur-
rent is less than or equal to the continuous output current of MOVITRAC
®
07. This
means MOVITRAC
®
07 can operate a motor whose power is one level greater.
05119AXX
a
= Recommended voltage/speed characteristic curve and resultant torque characteristic
B
= Torque reserve range
