Manual ME-582x Series
Revision 0.9
3 Hardware
page 18
Meilhaus Electronic
The inputs CLK_x and GATE_x have been designed for a voltage
level of +24 V (R
v
= 3
kΩ).Note for I
F
: 7.5
mA ≤ I
F
≤ 10 mA.
The max. output current of opto-isolated versions may not exceed I
Out
= 30 mA.
3.6.2
Pulse Width Modulation
Pulse width modulation (PWM) is a special application of the counters.
With a suitable external wiring a signal with variable duty cycle can be
generated with the help of counters 0
…2. The duty cycle can be varied in
th
e range of 1…99 % in steps of 1.
The prescaler has to be sourced with an external base clock of max.
250 kHz. This results in a max. output signal frequency of 1,25 kHz. Pic-
ture 19 shows the external wiring to be used with the functions
meUtili-
tyPWMStart/Stop
(see also ME-iDS manual).
f
OUT_2 =
Base clock
(with <Prescaler> = 2
…(2
16
– 1 ))
<Prescaler>
⋅
100
The following picture shows the external wiring of the counters for the ME-
5820 series.
For programming the PWM output please read the ME-iDS user manual
and the ME-iDS help file (see ME-iDS Control Center).
Picture 10: PWM wiring ME-5820 series
