Applied Motion RS-232 - Manual (Page 64)

64 920-0002 Rev. I
2/2013
Host Command Reference
DL - Define Limits
Compatibility: All drives
Affects:
All move commands
See also: AM command
CW and CCW end-of-travel limits are available on all drives and can be used to define the boundaries of
acceptable motion in a motor/drive system. If one of these inputs is activated while defined as an end-of-travel
limit, motor rotation will stop in that direction, and an alarm code will show at the drive’s status LEDs. When
defining these inputs as end-of-travel limits both inputs are defined together as either active low, active high, or not
used. See below for details.
BLu-S/Q, STAC6
Defines usage of inputs X6 and X7 as dedicated end-of-travel limits. X6 is the CCW limit input and X7 is the CW
limit input. If not needed, X6 and X7 can be redefined as general purpose inputs.
STAC5-S, SVAC3-S
Defines usage of inputs X1 and X2 as dedicated end-of-travel limits. X1 is the CW limit input and X2 is the CCW
limit input. If not needed, X1 and X2 can be redefined as general purpose inputs.
STAC5-Q/IP, SVAC3-Q/IP
Defines usage of inputs IN7 and IN8 as dedicated end-of-travel limits. IN7 is the CW limit input and IN8 is the
CCW limit input. If not needed, IN7 and IN8 can be redefined as general purpose inputs.
Blu-Si
Defines usage of top-board inputs IN7 and IN8 as dedicated end-of-travel limits. IN7 is the CW limit input and IN8
is the CCW limit input.
ST-Q/Si, SV
Defines the usage of inputs X7 and X8 as dedicated end-of-travel limits. X7 is the CW limit input and X8 is the
CCW limit input. If not needed, X7 and X8 can be redefined as general purpose inputs.
ST-S, STM-17/23
Defines the STEP and DIR inputs as CW end-of-travel and CCW end-of-travel limit inputs, respectively. The STEP
and DIR inputs can each be assigned to only one function in an application. If you want to use the STEP and DIR
inputs as end-of-travel limit inputs you can define them as such in two ways, with the ST Configurator software,
or with the DL command. DL takes no effect if the drive is set in Command Mode (CM) 7, 11, 12, 13, 14, 15, 16,
17 or 18, because these modes predefine these inputs and take precedence over the DL command. Also, setting
the JE command after setting the DL command reassigns the STEP and DIR inputs as jog inputs and turns off
any limit input usage (DL3). In other words, the DL and JE commands, as well as Command Modes (CM) 7, 11,
12, 13, 14, 15, 16, 17 and 18 each assign a usage to the STEP and DIR inputs. Each of these must exclusively
use the STEP and DIR inputs. Command Modes are most dominant and will continually prevent DL and JE from
using the inputs. DL and JE exclude each other by overwriting the usage of the STEP and DIR inputs.
STM24-C
Defines the usage of inputs IN1 and IN2 as dedicated end-of-travel limits. IN1 is the CW limit input and IN2 is the
CCW limit input. If not needed, IN1 and IN2 can be redefined as general purpose inputs.
STM24-SF/QF
Drives with Flex I/O allow a user to configure a drives I/O (I/O1 through I/O4) to be either an input or an output by
using the SD command. For the DL command,
the drive uses inputs I/O3 and I/O4 as dedicated end-of-travel limits. I/O3 is the CW limit input and I/O4 is the
CCW limit input. If not needed, I/O3 and I/O4 can be redefined as general purpose inputs.