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Epsilon EP-I Indexing Drive and FM-2 Indexing Module Reference Manual
Making an output line "Active Off" means that the line will be “Off” (not conducting) when the result of the logical Or of the
output function(s) assigned to that output line is active, and will supply a voltage when the logical Or of the output function(s)
is not active.
Input Functions
Alternate Mode Enable
This input function will enable the Alternate Mode features.
Brake Control
This input function, when active, will engage the brake unless overridden by the Brake Release input function. This input
function lets you externally engage the brake, while allowing the drive to also control the brake during fault and disabled
conditions.
Brake Release
This input function will release the brake under all conditions. If this input function is active, the brake output function is
switched to active (i.e. release brake). This overrides all other brake control, thus allowing the brake to be released while a
fault is active or the power stage is disabled.
Define Home
This input function is used to set the absolute position to zero. On the rising edge of this input function the absolute position
is set to zero and the Absolute Position Valid output function is activated.
Home Initiate
This input function is used to initiate a home routine. The home is initiated on the rising edge of this input function. The drive
will not initiate a home routine if there is an Index or Jog in progress or the stop input function is active. The Home Initiate
Input function cannot be set “Active Off”.
Home Sensor
This input function defines the sensor used for homing. It is required if you are homing to a sensor or a sensor and marker.
This function is edge sensitive. The sensor position is defined when the device senses the rising edge of the sensor.
Index Initiate
This input function initiates the selected index. The index to be initiated is specified using the index select input functions 0
through 3. If none of the index select functions are assigned then index #0 will be initiated. This input function cannot be set
“Active Off”.
Index Select 0 through 3
The Index Select Input functions are used to specify the index to be initiated with the Index Initiate input function. The format
of the Index Select functions (0 through 3) is binary. That is, the first line, Index Select 0, has the value of 1, the second, Index
Select 1, a value of 2, the third, Index Select 2, a value of 4, the fourth, Index Select 3, a value of 8. The index number selected
is the sum of the values of the active index select functions. The table below shows this concept.
Index
Select #0
(value = 1)
Index
Select #1
(value = 2)
Index
Select #2
(value = 4)
Index
Select #3
(value = 8)
Selected
Index
Off Off Off Off 0
On Off Off Off 1
Off On Off Off 2
On On Off Off 3
Off Off On Off 4
On Off On Off 5
Off On On Off 6
On On On Off 7
Off Off Off On 8
On Off Off On 9
Off On Off On 10
On On Off On 11