Matrix-orbital GLK12232-25-SM Bedienungsanleitung PDF herunterladen (Seite 15)

relatively high current (such as a relay) and has an internal resistance of its own greater than 250 ohms, then

the 240 ohm resistor may be removed and replaced with a jumper.

Pin 1 (from left) -GND

Pin 2 GPO 1 +MAX: 20mA, +5Vdc

Pin 3 -GND

Pin 4 GPO 2 +MAX: 20mA, +5Vdc

Figure 14: General Purpose Output

WARNING Warning: If connecting a relay, be sure that it is fully

clamped using a diode and capacitor in order to absorb any electro-

motive force (EMF) which will be generated.

2.5 Manual Override

The Manual Override is provided to allow the GLK12232-25-SM to be temporarily reset to some of the

factory defaults. This can be particularly helpful if the display module has been set to an unknown baud rate

or I

C Slave Address and you are no longer able to communicate with it. If you wish to return the module

to its default settings you must:

1. Power off the display module.

2. Place a Jumper on the Manual Override pins 1 and 2 as pictured below.

3. Power up the display module.

4. The display module is now set to its default values listed below in table 2.

5. Edit and save settings.

Matrix Orbital GLK12232-25-SM 10

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Matrix-orbital GLK12232-25-SM Bedienungsanleitung Seite 15