Delta Tau GEO BRICK DRIVE Manuale Utente
Geo Brick Drive User Manual
Pinouts and Software Setup
150
Setting up the External Amplifier Fault Input
Caution
The amplifier fault minus signal is internally tied to the brake/relay
common (pin #8).
common (pin #8).
The amplifier fault signal is a bidirectional single-ended input. Its’ minus end is tied internally to the
brake/relay common (pin #8) which dictates how the amplifier fault input should be connected.
Note
If the amplifier fault signal is not used, it can be treated and used as a
general purpose +12~24V input by setting bit 20 of Ixx24 to 1.
general purpose +12~24V input by setting bit 20 of Ixx24 to 1.
Note
The amplifier fault signal polarity can be changed in software with bit
23 of Ixx24; =1 for High True, =0 for Low True.
23 of Ixx24; =1 for High True, =0 for Low True.
If the brake/relay option is in use (otherwise, whichever scheme desirable):
If pin#8 is wired to common ground, then use the sourcing scheme
If pin#8 is wired to 24V, then use the sinking scheme
Sourcing
Sinking
AFAULT RET
2
3
4
5
9
8
7
6
1
External
Amplifier
AFAULT
12-24V
AFAULT RET
2
3
4
5
9
8
7
6
1
External
Amplifier
AFAULT
12-24V
External Amplifier Fault Input, Suggested M-Variables:
// External Amplifier Fault Inputs:
M523->X:$078100,15,1 ; Amp. Fault Input (CH5), Connector X9
M623->X:$078108,15,1 ; Amp. Fault Input (CH6), Connector X10
M723->X:$078110,15,1 ; Amp. Fault Input (Ch7), Connector X11
M823->X:$078118,15,1 ; Amp. Fault Input (Ch8), Connector X12
M523->X:$078100,15,1 ; Amp. Fault Input (CH5), Connector X9
M623->X:$078108,15,1 ; Amp. Fault Input (CH6), Connector X10
M723->X:$078110,15,1 ; Amp. Fault Input (Ch7), Connector X11
M823->X:$078118,15,1 ; Amp. Fault Input (Ch8), Connector X12
This feature is commonly used when an amplifier is commanded through the DAC outputs on X9-X12,
and the need of a fault input signal is required to run the operation safely (i.e. kill in the occurrence of an
amplifier fault).