Baumer BA DenexGripperLED - Manual (Page 9)

User Manual DENEX Gripper LED 9/24 Baumer Electric AG
Version 2013-02, V1.4 www.baumer.com Frauenfeld, Switzerland
5.2.2 Speed Sensor Input
There is a possibility to connect an input signal from a speed sensor, such as an encoder
giving for example 100 pulses per Gripper, or a proximity switch that senses the Grippers,
in order to give information conveyor speed and Gripper position to the DENEX Gripper
LED. This information can help the sensor to increase accuracy, especially for productions
with two papers per Gripper.
The speed sensor input of the DENEX Gripper LED is opto-isolated, i.e. there is a
separation between the DENEX Gripper LED’s and the Speed Sensor’s grounds.
The input should be min. 4.5V and max. 28V.
The maximum allowed frequency is 2.5 kHz.
Connector
Input signal
3
4
Figure 5.2.2.1 Input stage for speed sensor input.
There is a variety of types of proximity switches available: NPN, PNP, normally open, and
normally closed. However, the principle is the same; when a Gripper is close to the switch,
it will change status on the output.
The DENEX Gripper LED will sense this change and use it in the Blocking Function routine.
See chapter 6, ”SOFTWARE FUNCTIONS”.