AMCI SD4840EK, User Manual

Page: 54 / 104

C
ONFIGURATION
D
ATA
F
ORMAT
SD4840EK User Manual
ADVANCED MICRO CONTROLS INC.
54
CFG_Word_0 Format (continued)
Bit 11: Use_Backplane_Proximity –
“0” when the Backplace_Proximity_Bit is not used when homing the
SD4840EK. “1” when the Backplace_Proximity_Bit is used when homing the SD4840EK. Note that
this bit is not the Backplace_Proximity_Bit, but enables or disables its operation. Do not use the
Backplace_Proximity_Bit if you only want to home to the Home Limit Switch. (Leave this bit equal
to “0”.)
Bit 10: Use_Encoder –
“0” when Quadrature Encoder is not used. “1” to enable a Quadrature Encoder. You
must also enter a pulses per turn value into the Encoder_Resolution register (8010:06) in addition to
setting this bit.
Bit 9: Home to Encoder Z Pulse –
Set to “1” to home the machine to the encoder’s Z pulse. The Quadra-
ture Encoder Enable Bit, bit 10, must also be set. You must also program the Encoder_Resolution
parameter in 8010:06. If a Discrete DC Input is configured as a Home Input, it will act as a Home
Proximity Input.
Bits 8-6: Input 3 Function –
See Table Below
Bits 5-3: Input 2 Function –
See Table Below
Bits 2-0: Input 1 Function –
See Table Below
Table R5.2 Configuration Data: Input Function Selections
Bits
8 7 6
5 4 3
2 1 0 Function Available On
0 0 0 General Purpose Input
The input is not used in any of the functions of the
SD4840EK, but it’s status is reported in the Network
Data. This allows the input to be used as a discrete DC
input to the host controller.
0 0 1 CW Limit Input defines the mechanical end point for CW motion.
0 1 0 CCW Limit Input defines the mechanical end point for CCW motion.
0 1 1 Start Indexed Move Starts a move that is held in the output registers.
0 1 1
Start Indexed Move /
Capture Encoder Value
When the encoder is enabled, the encoder position value
is captured whenever this input transitions. An inactive-
to-active state transition will also trigger an Indexed
Move if one is pending in the SD4840EK.
1 0 0
Stop Jog or
Registration Move
Brings a Jog or Registration Move to a controlled stop.
1 0 0
Stop Jog or
Registration Move
&
Capture Encoder Value
When the encoder is enabled, the encoder position value
is captured when the input triggers a controlled stop to a
Jog or Registration move.
1 0 1 Emergency Stop
All motion is immediately stopped when this input makes
an inactive-to-active transition.
1 1 0 Home
Used to define the home position of the machine. When
homing to the Z-pulse of the encoder, (Bit 9 of this word
set to “1”), this input will act as a Home Proximity input.
1 1 1 Invalid Combination This bit combination is reserved.