Справочник Пользователя для Delta Tau GEO BRICK DRIVE
Geo Brick Drive User Manual
Pinouts and Software Setup
61
Step and Direction PFM Output (To External Stepper Amplifier)
The Geo Brick Drive has the capability of generating step and direction (Pulse Frequency Modulation)
output signals to external stepper amplifiers. These signals are accessible at the encoder connectors. The
step and direction outputs are RS422 compatible and could be connected in either differential or single-
ended configuration for 5V (input signal) amplifiers.
output signals to external stepper amplifiers. These signals are accessible at the encoder connectors. The
step and direction outputs are RS422 compatible and could be connected in either differential or single-
ended configuration for 5V (input signal) amplifiers.
Note
Quadrature encoders can still be used in this mode. However, hall
sensors can NOT be brought into this connector. The corresponding
pins are shared with the PFM circuitry.
Additionally, if an amplifier enable output signal is required, the index
(C-channel) of the quadrature encoder cannot be used.
sensors can NOT be brought into this connector. The corresponding
pins are shared with the PFM circuitry.
Additionally, if an amplifier enable output signal is required, the index
(C-channel) of the quadrature encoder cannot be used.
Note
The default mode does not provide a PFM amplifier enable output
signal. This should be requested upon ordering the Geo Brick Drive to
avoid changing jumper settings internal to the drive, and risk losing
product warranty in the process.
signal. This should be requested upon ordering the Geo Brick Drive to
avoid changing jumper settings internal to the drive, and risk losing
product warranty in the process.
PFM output to stepper amplifier
with encoder feedback
PFM output to stepper amplifier
without encoder feedback
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
A+
A-
B-
B+
+ 5VDC
GND
Encoder shield (solder to shell)
DIR+
DIR-
PULSE+
PULSE-
AENA+
AENA-
P
FM
e
n
ab
le
Ex
te
rn
al
S
te
p
p
e
r
A
m
p
lif
ie
r
AENA-
AENA+
DIR+
DIR-
PUL+
PUL-
GND
DIGITAL GND
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
DIR+
DIR-
PULSE+
PULSE-
AENA+
AENA-
P
FM
e
n
ab
le
Ex
te
rn
al
S
te
p
p
er
A
m
p
lif
ie
r
AENA-
AENA+
DIR+
DIR-
PUL+
PUL-
GND
DIGITAL GND
+5V
Note
Tie pin#8 to pin#4 (+5V) to enable PFM signal output.
For Delta Tau internal use:
Install Jumpers E25, E26, E27, and E28 to activate amp enable on channels 1 through 4 respectively.
Install Jumpers E35, E36, E37, and E38 to activate amp enable on channels 5 through 8 respectively.