Functions, monitoring, and protective functions
9.2 Drive functions
Converter cabinet units
520 Operating Instructions, 07/2016, A5E03347396A
r0069
Phase currents actual value
r0089
Phase voltage actual value
p0410
Encoder inversion actual value
p1820
Reverse output phase sequen
ce
p1821
Unit changeover
Description
Parameters and process variables for input and output can be switched to a suitable units
system (SI units, US units or referenced variables (%)) with the help of the unit changeover
function.
The following constraints apply to the unit changeover:
● Unit changeover is only possible for the "VECTOR" and "B_INF" drive object.
● Parameters of the rating plate of the drive converter or the motor rating plate can be
changed over between SI/US units; however, a per unit representation is not possible.
● Once the changeover parameter has been changed, all parameters that are assigned to a
unit group depending on this parameter are jointly changed over to the new unit.
● A separate parameter is available for selecting technological units (p0595) for the
representation of technological variables in the technology controller.
● If a changeover is made to referenced variables and the reference variable is
subsequently changed, the % value entered in a parameter will not change.
Example:
– With a reference speed of 1500 1/min, a fixed speed of 80 % corresponds to a value
of 1200 1/min.
– If the reference speed is changed to 3000 1/min, the value of 80 % is retained and is
now 2400 1/min.
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