ABB ACSM1 Firmware Manual page 19

Ie, 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 control unit of the drive is powered from an external power
supply (as specified in Hardware Manual), set parameter
UNIT SUPPLY to EXTERNAL 24V.
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 42.
Multimotor drives
99.09 MOT NOM SPEED
External control unit power supply
External mains choke
95.02 EXTERNAL CHOKE
Motor overtemperature protection (1)
Temperature sensors
99.06 MOT NOM
CURRENT
99.08 MOT NOM FREQ
99.10 MOT NOM
POWER
99.09 MOT NOM SPEED
can
95.01 CTRL UNIT
SUPPLY
95.01 CTRL
95.02 EXTERNAL
CHOKE
to YES.
45.01 MOT TEMP PROT
45.02 MOT TEMP
SOURCE
on
19
Start-up