AMCI SV160E2, User Manual, Page: 17 / 120

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SV160E2 User Manual
SV160E2 S
PECIFICATIONS
17
Available Discrete Inputs (continued)
Start Indexed Move Input
Indexed Moves are programmed through the Network Data like every other move. The only difference is that
Indexed Moves are not run until a Start Indexed Move Input makes a inactive-to-active state transition. This
allows an SV160E2 to run critically timed moves that cannot be reliably started from the network due to data
transfer lags.
Emergency Stop Input
When an input is defined as an Emergency Stop, or E-Stop, Input and it is activated, motion will come to an
Immediate Stop. The move cannot be restarted. The
Immediate Stop Deceleration parameter, described on
page 26, is used to decelerate the load. If a stall is not detected during the stop, the motor will return to the
Profile Position value. If a stall is detected during the stop, the SV160E2 will disable the motor and issue a
Position_Invalid fault. See
Stall Detection on page 16 for a description of the stall detection process.
Any move, including a Jog or Registration Move, cannot begin while this input is active.
Stop Jog or Registration Move Input
When an input is configured as a Stop Jog or Registration Move Input, triggering this input during a Jog
Move or Registration Move will bring the move to a controlled stop. The controlled stop is triggered on an
inactive-to-active state change on the input. Only Jog Moves and Registration Moves can be stopped this
way, all other moves ignore this input.
Capture Encoder Position Input
As described in the Start Indexed Move Input and Stop Jog or Registration Move Input sections above, an
SV160E2 can be configured to capture the encoder position value on a transition of a discrete DC input.
General Purpose Input
If your application does not require one or more of the inputs, you can configure the unused inputs as General
Purpose Inputs. The inputs are not used by the SV160E2, but their on/off state is reported in the network data
and is available to your host controller.
Enabling the Driver
The SV160E2 performs multiple checks before enabling power to the motor.
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The unit must be in Command Mode.
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A Configuration error must not exist.
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The unit must pass its internal checks. (The Module_OK status bit must equal “1”.
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The power stage must not be in an over temperature or over current condition.
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The DC Bus Voltage must be between 19 Vdc and 95 Vdc.
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When using the Over Voltage Threshold parameter, the input voltage must be less than 90% of this
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value. (If the Threshold is set to 79.2 Vdc, the input voltage cannot exceed 79.2*0.9 = 72 Vdc.)
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If configured, an Emergency Stop input must not be active.
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The encoder must pass its operational checks and be providing a valid position
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The difference between the Profile Position and the Encoder Position must be less than ±4,096 counts
or the Preset_On_Enable bit must be set. (When set, the Encoder Position is set to the Profile Position
when the motor is enabled.
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On STO units, the STO_Active and STO_Failure bits must both be “0”. (See below for a description of
the STO Option.)