Chapter 1. Installation
1 1
ANI Analog Input
(OEM6250-ANI or OPT-OEM6250-A product only)
Internal Schematics
Analog
Ground
±
10V Ana og
Input Source
¥ Each input is a
±
10V analog input with a 14-bit
analog-to-digital converter.
¥ The ANI input is sampled at the
servo sampling
rate (see table for
SSFR
command).
¥ Voltage value reported with the
TANI
and
ANI
commands; Position value (819 counts/volt)
reported with the
TPANI
and
PANI
commands.
Analog
Ground
150 K
W
+15V
-15V
L F 4 1 2
6 5 4 3 2 1
Ground –
Signal Source +
Analog Input #1
Analog Input #2
Analog Ground
ANI Option
Board
(same as #1)
N.C.
N.C.
N.C.
Enable (ENBL) Input — Emergency Stop Switch
+5V
OUT-P
IN-P
TRG-A
TRG-B
GND
OUT-A
OUT-B
GND
ENBL
+5V
AUX-P
6.8 K
W
R45
(0 K
W
)
47 K
W
74HCxx
To control the ENBL
input with a switch,
first remove R25 and
then wire the switch
as shown.
AUX Connector
ENBL connected to GND
(normally-closed switch).
(NOTE—You must first remove resistor R25 before you can
use a switch on this input.) If this connection is opened,
motion is killed and the program in progress is terminated.
If the ENBL input is not grounded when motion is
commanded, motion will not occur and the error message
“
WARNING: ENABLE INPUT ACTIVE
” will be displayed in
the terminal emulator.
Internal Schematic
OEM6250
As shipped from the factory, AUX-P is internally connected to +5V via resistor R45 (input
is sinking current). To make the ENBL input sink current to a supply other than +5V, first
remove R45 and then connect an external 5-24V supply to the AUX-P terminal. To source
current, first remove R45 and then connect the AUX-P terminal to the GND terminal.
CAUTION: Failure to remove R45 before connecting AUX-P to an external supply or
to the GND terminal or to the +5V terminal will damage the OEM6250.
NOTE: AUX-P (and R45) are also used by the HOM, NEG, POS, & TRG inputs.
HCMOS compatible (switching levels: low
£
1.00V, high
³
3.25V).
Voltage range = 0-24V.
AUX
R45
AUX-P
Location of resistor R45.
Digital
Ground
(GND)
Location of resistor R25.
R25
(0 K
W
)
Remove R45 before connecting
AUX-P to an external 5-24VDC
supply (sink current) or to the GND
terminal (source current). Failure
to remove R45 first will damage
the OEM6250.
+5VDC
