Delta Tau GEO BRICK LV 사용자 설명서
Geo Brick LV User Manual
PinOuts and Software Setup
51
Step and Direction PFM Output (To External Stepper Amplifier)
The Geo Brick LV 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.
Tying pin #8 to pin #4 (+5V) enables the PFM signal output.
Digital A quad B encoders can still be used alongside PFM output, but hall sensors can NOT be brought
into this connector, they conflict with the PFM circuitry.
The PFM amplifier enable output signal is not available by default. Jumpers E25, E26, E27, and E28
should be installed to activate the amp enable functions of channels 1 through 4 respectively. Similarly
jumpers E35, E36, E37, and E38 should be installed to activate the amp enable functions of channels 5
through 8 respectively.
Note
We strongly recommend requesting that these jumpers be installed
upon shipping to avoid opening the unit and losing warranty.
upon shipping to avoid opening the unit and losing warranty.
The index channel (C-channel) can NOT be wired into this connector when the amplifier enable output
signal is configured.
PFM output
with encoder feedback
PFM output 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