Operating instructions EN
◼
SE-24
◼
01.06.2022
◼
V1.5
51
–66
9.2 Dynamic current limitation
This function is for protecting the motor against overheating and is primarily necessary for motors without temperature sensor.
For motors with temperat
ure sensors (PTC, KTY, etc.) it’s optional.
The dynamic I*t
– current limitation limits the desired current value range of the controller depending the actual motor current and the
time. This function is monitoring the value of the peak current for both the positive and the negative rotating direction. How long the peak
current Ip (CURR_DynLimitPeak) can flow, is conditioned by the parameter tp (CURR_DynLimitTime). After this time the motor current
decreases to the continuous current Ic (CURR_DynLimitCont). This is only valid, if the current was limited to the peak current Ip
(CURR_DynLimitPeak) all the time. If the current was less than the peak current, the time tp (CURR_DynLimitTime) increases
accordantly.
A higher motor current then the continuous current is not allowed till the actual motor current was under the continuous current Ic
(CURR_DynLimitCont). The longer the motor current was under the continuous current Ic (CURR_DynLimitCont) and the lower it was,
that higher would be the allowed temporary motor current, meanwhile the peak current Ip (CURR_DynLimitPeak) keeps limited.
Figure 21: Dynamic current limitation
Содержание 50315434
Страница 1: ...Servo Controller SE 24 Operating Instructions Operating manual Copyright by Afag Automation AG ...
Страница 47: ...Operating instructions EN SE 24 01 06 2022 V1 5 47 66 Figure 17 Example of a circuit diagram of the SE 24 I O ...
Страница 65: ...Operating instructions EN SE 24 01 06 2022 V1 5 65 66 ...