ABB ACSM1 Firmware Manual page 19

I.e. more than one motor is connected to one drive.
Check that the motors have the same relative slip (only for
asynchronous motors), nominal voltage and number of poles. If the
manufacturer motor data is insufficient, use the following formulas to
calculate the slip and the number of poles:
⋅
f 60
⎛ ⎞
N
---------------
p = Int
⎝ ⎠
n
N
⋅
f 60
N
n = --------------- -
s
p
n – n
S N
----------------- - 100% ⋅
s =
n
S
where
p = number of pole pairs (= motor pole number / 2)
f = motor nominal frequency [Hz]
N
n = motor nominal speed [rpm]
N
s = motor slip [%]
n = motor synchronous speed [rpm].
S
Set the sum of the motor nominal currents.
Set the nominal motor frequencies. Frequencies must be the same.
Set the sum of the motor nominal powers.
If the motor powers are close to each other or the same but the
nominal speeds vary slightly, parameter
be set to an average value of the motor speeds.
If the drive is equipped with an external choke (specified in Hardware
Manual), set parameter
Select how the drive reacts when motor overtemperature is detected.
Select the motor temperature protection: motor thermal model or
motor temperature measurement. For motor temperature
measurement connections, see section
page 39.
WARNING! With Normal or Reduced ID run the motor will run at up to approximately
50...100% of the nominal speed during the ID run. ENSURE THAT IT IS SAFE TO
RUN THE MOTOR BEFORE PERFORMING THE ID RUN!
Multimotor drives
99.09 MOT NOM SPEED
External mains choke
95.02 EXTERNAL CHOKE
Motor overtemperature protection (1)
Temperature sensors
ID RUN (motor identification run)
99.06 MOT NOM
CURRENT
99.08 MOT NOM FREQ
99.10 MOT NOM
POWER
99.09 MOT NOM SPEED
can
95.02 EXTERNAL
CHOKE
to YES.
45.01 MOT TEMP PROT
45.02 MOT TEMP
SOURCE
on
19
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