Installation manual

32
Epsilon EP-B Base Drive Reference Manual
Figure 24: Input Line Diagram
If the Input Line attached to the home sensor is debounced, the actual rising edge of the Home Sensor is used to
determine the Home Reference Position (the debounce time ensures a minimum pulse width).
Forced On and Forced Off
An input line can be forced to a level by using the "Forced On" and "Forced Off" check boxes. When you force an input
line “On” or “Off”, all the functions assigned to that line will be affected.
The forced state of input and output lines are not saved to NVM and will reset to normal operation when the drive
is powered up or re-booted.
Input Functions
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.
Reset
This input function is used to reset fault conditions and is logically OR’ed with the Reset/Setup button on the front of the
drive’s. A rising edge is required to reset faults.
Stop
The Stop input function uses the Stop Deceleration Ramp to decelerate the motor to zero velocity and hold position. If
the Stop input function is activated when a Jog, Index or Home is in progress, it will be terminated. When this function
is active, all Jog, Index and Home input functions will be ignored.
When it is deactivated, all level sensitive and active input functions (Jog +, Jog -, Jog Fast) will become operational. For
example, if the Jog + input function is active when the Stop input function is deactivated, the Jog + motion will initiate
using the Jog Acceleration parameter.
The decimal point on the base drive status/diagnostic display goes “Off” when the stop function is activated (or the drive
is disabled).
Velocity Preset Lines 1, 2 and 3
The Velocity Preset Lines are used to select one of the eight pre-defined velocities using a binary selection pattern.
Velocity Preset Line #1 has a binary value of 1, Velocity Preset Line #2 has a value of 2, and Velocity Preset Line #3
has a value of 4. If all three Velocity Preset Line are inactive (0) then Velocity Preset 0 has been selected. If Velocity
Preset Line #2 is active (1) and the other two lines are inactive (0) then Velocity Preset 2 is selected.
If you select a different Preset Velocity, the drive will immediately ramp to the new velocity using the new acceleration
ramp without stopping.
Torque Limit Enable
This input function, when active, causes the Torque Command to be limited to the value of the Torque Limit parameter.
Input
Terminal
Input Lines
Force On/Off
Command
Input Lines
Force On/Off
Enable
Debounce
Timer
Input Line
Debounced
Status
Input Line
Status
Input Line
Raw Status