Wiring the Drive
05/2008
Danaher Motion
56
S200-VTS Product Manual
J4-17, 18
CH Z OUT
CH Z OUT
The CH Z Output is only available when using SFD Feedback. These
two terminals function as a differential, TTL marker pulse. The output
pulse occurs once per motor shaft revolution, starting at feedback
device position = 0. Its width is one line width or two quadrature
encoder widths. The CH Z uses the same differential driver as
described for CH A and CH B.
Encoder
Phasing
Encoder Phasing for Clockwise Motor Rotation
Z
B
A
PosFB – EncOutZoffset = 0
6.7.7
Analog Command Input
ANA CMD
J4-24, 25
(+), (-) Inputs
This differential input accepts the analog command from the user. It
has a maximum single ended input range with respect to I/O RTN on
either input of –12.5 to +15.5 VDC, a differential input impedance of
> 300 k
Ω
, and a single ended impedance of > 150 k
Ω
. The
recommended full-scale differential command input range is ±10 V,
but the input can handle up to ±12 V to accommodate noise and
overshoot spikes. Default setup has ±10 V corresponding to ±Ipeak
or ± maximum velocity depending on the OpMode.
The offset, gain (including polarity), and low pass filter bandwidth of
this input are set by the following NV Parameters:
CmdGain
,
CmdOffset
, and
CmdF0
respectively and can be adjusted by the
PC setup software. Defaults are ±10 V range, 0 offset, 1500 Hz
bandwidth. Positive ANA CMD yields clockwise torque when
looking at the shaft at the front of the motor.
-
+
OP AMP
33.2 k
130 k
100 pf
33.2 k
130 k
100 pf
J4-26
J4-25
J4-24
I/O RTN
ANA
CMD +
ANA
CMD -
To
A/D
1.575 V
+
-
20 k
Z
Z
Vad
20 k
+
-
15.0 k
15.0 k
NOTE
Always connect I/O RTN (J4-26) to the signal ground of the
source. Failure to do so may result in erratic operation.
Both J4-24 and J4-25 need to be wired. For single ended
operation connect the unused input to the signal ground of the
source. Best signal fidelity uses a separate wire all the way back
to the source for the unused input connection to the source’s
signal ground.
The direction of rotation of the motor can be changed by
swapping the ANA CMD input connections or changing the sign
of the CmdGain NV Parameter.