ABB ACS850 series, Quick Start Up Manual

Page: 9 / 196

Quick Start-up Guide for ACS850 with Standard Control Program 9
• motor nominal voltage
Allowed range: 1/6 ×
U
N
… 2 × U
N
of the drive. ( U
N
refers to the highest voltage in each nominal voltage
range).
With permanent magnet motors, the nominal
voltage is the BackEMF voltage (at motor nominal
speed). If the voltage is given as voltage per rpm,
e.g. 60 V per 1000 rpm, the voltage for 3000 rpm
nominal speed is 3 × 60 V = 180 V.
Note that the nominal voltage is not equal to the
equivalent DC motor voltage (E.D.C.M.) value given
by some motor manufacturers. The nominal voltage
can be calculated by dividing the E.D.C.M. voltage
by 1.7 (= square root of 3).
99.07 Mot nom voltage
• motor nominal frequency
With permanent magnet motor: If the frequency is
not given on the motor nameplate, it has to be
calculated using the following formula:
f = n × p / 60
where p = number of pole pairs, n = motor nominal
speed.
99.08 Mot nom freq
• motor nominal speed 99.09 Mot nom speed
• motor nominal power 99.10 Mot nom power
The following motor data parameters can be set to improve control accuracy. If not
known, set the values to 0.
• motor nominal cos

(not applicable for permanent
magnet motors)
99.11 Mot nom cosfii
• motor nominal shaft torque 99.12 Mot nom torque
The following parameters define operation limits to protect the driven equipment.
• maximum speed
For the Normal and Reduced ID runs (see below),
this value should be higher than 55% of the motor
nominal speed defined earlier. 20.01 Maximum speed
• minimum speed
For the Normal and Reduced ID runs (see below),
this value should be less than or equal to 0 rpm. 20.02 Minimum speed
• maximum current
This value should be higher than the motor nominal
current defined earlier. 20.05 Maximum current