NORD Drivesystems BU0210 - Manual (Page 44)

SK 2x5E with "PosiCon Functionality"
44 Subject to technical amendments BU 0210 GB
The size of the P amplification which is set in P310 of the position control depends on the dynamic
characteristics of the system as a whole. In principle: the greater the masses and the smaller the friction if the
system, the greater is the tendency of the system to oscillate and the smaller is the maximum possible P
amplification. To determine the critical value, the amplification is increased until the drive unit oscillates about
the position (leaves the position and then approaches it again). The amplification should then be set to 0.5x to
0.7x this value.
For positioning applications with a subordinate speed control (P300 "Servo Mode"), for applications involving
large masses a setting which deviates from the standard setting of the speed control is usually to be
recommended. To parameterise the speed control - I - amplification in parameter P311, a value between 3%
and 5% has proved effective. In parameter P310 a speed control P amplification value of between 100% and
150% can be selected.