14.15.5 HTL output
The digital output 1 can be congured for the output of a reference frequency ("pulse train")
to transfer an internal actual value signal (e. g. current output frequency or current torque) to
a higher-level Controller or other inverters.
Precondions
In order to output an opmum rectangular signal, a "pulldown" resistor of 1 kOhm is recom-
mended at the digital output. The resistor can be directly connected to the terminals DO1 and
GND.
Restricons
•
When the digital output 1 is congured as pulse train output, this digital output is not
available anymore for the output of digital status signals.
•
The maximum output frequency of the digital output is 10 kHz.
Details
Typical applicaon cases:
a)
An inverter acts as a master and transfers its current output frequency in the form of a
pulse train signal to one or several other inverters (slaves). The slaves use the pulse train
signal with a corresponding scaling as a frequency setpoint.
1k
Pulse 4Pulse 1 Pulse 2 Pulse 3
DO1
DO2
GND
DI4
DI3
GND
X3
VDC
Duty cycle (50 %)
15 ... 24
0
t
X3
Inverter
(slave)
Inverter
(master)
b)
The inverter transfers the current torque or another internal variable as a pulse train signal
to a higher-level Controller. Then, the Controller can evaluate the signal accordingly.
1k
DO1
DO2
GND
DIx
GND
VDC
15 ... 24
0
t
X3
ControllerInverter
Flexible I/O conguraon
Conguraon of digital outputs
HTL output
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