Akytec MU210-410, User Manual

Page: 35 / 45

5 Construction and operation
34
akytec GmbH - Vahrenwalder Str. 269 A - 30179 Hannover - Germany Tel.: +49 (0) 511 16 59 672–0 - www.akytec.de
Load
resistance,
R
L
Load capacity, C
L
0 pF 1000 pF 22 nF 50 nF 100 nF 1µF
5 kΩ 1 1 4 10 30 100*
* With a load capacity of 1 µF and a load resistance of 5 kΩ:
– maximum pulse rise time is 10 µs,
– maximum pulse decay time is 20 µs
The maximum allowable frequency of the PWM at the outputs supply voltage of 24 V when operating
at resistive and capacitive loads is given in
Table 5.11 :
Table 5.11 Maximum allowable PWM frequency (Hz)
Load
resistance,
R
L
Load capacity, C
L
0 pF 1000 pF 22 nF 50 nF 100 nF 1µF
250 Ω 60,000 50,000 14,000 6,000 3,000 200
500 Ω 60,000 60,000 31,000 13,500 6,500 500
5 kΩ
60,000 60,000 50,000 35,000 17,000 1 000
5.8.2 High-side switch mode
The minimum pulse duration at the outputs supply voltage of 24 V, depending on the resistive and
capacitive loads, is given in
Table 5.12 below:
Table 5.12 Minimum pulse duration of the output signal in the high-side switch mode (µs)
Load
resistance,
R
L
Load capacity, C
L
0 pF 1000 pF 22 nF 50 nF 100 nF 1µF
50 Ω
10 10 15 25 40
—
500 Ω 10 10 30 50 400 1500
5 kΩ
10 20 300 500 5000 10000
* With a load capacity of 1 µF and a load resistance of 5 kΩ:
– maximum pulse rise time is 10 µs,
– maximum pulse decay time is 20 µs
The maximum frequency of the PWM at the outputs supply voltage of 24 V when operating at
resistive and capacitive loads is given in
Table 5.13 :
Table 5.13 Maximum PWM frequency (Hz)
Load
resistance,
R
L
Load capacity, C
L
0 pF 1000 pF 22 nF 50 nF 100 nF 1µF
50 Ω 10,000 1 000 650 400 250
—
500 Ω
10,000 1 000 300 200 25 5
5 kΩ 10,000 500 30 20 2 1
5.9 Output operation on inductive load
Module outputs can be connected to an inductive load. The module implements hardware protection
against self-induction current that occurs during load shedding. An external protective diode
connection is not required.