please refer to appendices below.
5.2 Galvo X and Y Signals
A standard 6 pin 2,54 mm header, to be used with an IDC connector:
Pin Signal
Description
1
NC
Unused and reserved for future use, do not connect!
2
NC
Unused and reserved for future use, do not connect!
3
Galvo-Y analogue output with voltage possible in range +-5V..+-10V
4
Galvo-X analogue output with voltage possible in range +-5V..+-10V
5
GND
Common ground for Galvo-X
6
GND
Common ground for Galvo-Y
Pins 3 and 4 typically work in range -5V..+5V. For the +-10V hardware variant the Pins 3 and 4 work in range -
10V..+10V. Pins 5 and 6 is connected to GND.
The maximum current to be pulled out of each of the outputs should never exceed 20 mA. Lower currents are
recommended to avoid unnecessary heating of the whole board.
5.3 Optional Power Supply Input
These are optional separate power supply input pins which can be used when power is not or can not provided
via connector (1). Here a symmetric voltage in range +-15V..+-24V can be fed in. The two outer pins marked
with “-” are for -15V..-24V, the two middle pins are for GND and the two other outer pins marked with “+” are for
+15V..+24V power input.
When no power supply with symmetric/bipolar outputs is available, it is possible to combine two standard
power supplies, here GND of the first power supply has to be connected with +V of the second power supply
and with the GND-pins of the HALdrive:
8
