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NAC-S20-15 Active Compensation Unit - User Manual – Ver. 1.0
6.
Controller Functions
The following NAC has different functionalities that are elaborated in this section. The functionalities
elaborated are the following:
•
Idle:
Operation mode where the tool unit is applying no active forces
•
Active Force Control:
Operation mode to apply a target force with the tool unit.
•
Retract:
Operation mode where tool unit is fully retracted to it 0 stroke position
•
Load Calibration:
Performs a calibration to measure the load weight.
Warning! Injury and pinching hazard can occur when performing the
following steps if the load is not secured. Perform a risk assessment before
carrying out actions based on the following instructions. Prevent
unauthorized access and inform operators of potential hazards.
6.1.
Idle
In idle the tool unit is consuming no air and applying no active force control. The passive force by
the load is not compensated either.
6.2.
Active Force Control
When active force control is activated the NAC-S20-15 is regulated to apply the target force profile
with a negative or positive force values. It is also possible to ramp linear up to or down to a target
force value from a previous target. The parameters for active force control are:
•
Target Force:
Target force the NAC should push/pull with
•
Ramp time:
The time to linear ramping up/down to the target force. If the time is set to 0 it
will perform a regular step response
•
Load weigh:
The unit will actively cancel out the load weight
When specifying the IO interface using the web interface, only 16 different force profiles can be
selected. Each stating a target force and ramp time.