AVL F-FEM-DDC User Manual

Operation
46
F-FEM-DDC — User’s Guide
4.5.2 Specification
Transistor Output Specification
4.6 Frequency Outputs
This function is only available with PUMA Open version 1.5.1 and upwards.
A programmable frequency with a variable pulse width (duty cycle) is realized via
the 8 transistor outputs on X53 and X54.
Due to the missing current sink capability of the high side switches an additional
pull-down resistor is required for every frequency output.
These resistors can be mounted in the connector case or directly to the load.
Resistor values in a range of 74 Ohm to 2200 Ohm are recommended,
depending on the current of the load. The total current of 700 mA should not be
exceeded. Please consider also the power requirements of the resistor
depending on the supply voltage.
See Tab. 15 on page 47 for the electrical specifications of the transistor outputs.
For parameterizing details please see the F-FEM Parameterization.
The following signal types are available:
 Freq (Frequency)
 PWM (Pulse width modulation)
Measured quantity Min. Typical Max. Unit
Operating voltage, reverse
battery protected
524 50V
DC
Switching current
for resistive load
0.7 A
Update frequency 1000 Hz
Inductive load dump voltage -56 V
Leakage current 15 μA
Short circuit current,
internally limited
1.2 A
ON resistance 2.5 W
Inductive load at rated current 1.5 H
Output voltage at Pin 1, 2 of
X53, X54
U
supply
– 1 V
Output current at Pin 1, 2 of
X53, X54
for both connectors
2.0 A
Tab. 13
Information
Connecting channels in parallel for a higher current is not allowed!

AVL F-FEM-DDC Specifications

General

Brand	AVL
Model	F-FEM-DDC
Category	Measuring Instruments
Language	English