6 Startup and Operation
28
Version: 1.1.4
MP155E
V-273 VC Linear Actuator
INFORMATION
The C-413 controller sets the control value of the axis to the value of the AutoZeroResult
parameter (ID 0x07000A03) when the servo mode is switched off.
After an AutoZero procedure has been successfully performed, the parameter value is set so
that the V-273 compensates for the weight force of the moving mass with the corresponding
control value (important with a vertically aligned motion axis).
Further information can be found in the user manual of the C-413 controller.
INFORMATION
The repeatability of the positioning is only ensured when the reference switch is always
approached from the same side. Recommended controllers from PI fulfill this requirement with
their automatic direction detection for reference moves to the reference switch.
INFORMATION
The force sensor of the V-273.441 model works as an incremental sensor. When the controller
is switched on or rebooted, the connected force sensor always measures 0 N, regardless of the
actual force exerted on the force sensor.
In order to allow absolute force measurement, ensure that
no
force acts on the contact
part of the force sensor when the controller is switched on or rebooted.
6.2
Temperature Dependency of the Nominal Current: Calculating
the Nominal Current
The nominal current in the data table (p. 37) only applies when operating at room temperature.
The nominal current needed for operating the actuator must be adjusted when the ambient
temperature rises.