Nord Drivesystems NORDAC LINK SK 155E-FDS - Overview of Disconnection Modes

NORDAC LINK (SK 155E-FDS / SK 175E-FDS) – Users Manual for Motor Starters as Field Distributors
56 BU 0155 en-3520
4.2.2.4 Overview of disconnection modes
The disconnection mode determines the drive’s acceleration and deceleration behaviour.
Parameter P130 determines if the standstill or disconnection mode shall be set via hardware
adjustments (DIP switch (S1, S2), potentiometer (P1-P3)) or via software adjustments
(parameterisation P108).
The main behaviours can be set via hardware adjustments (factory setting).
In case of additional optimisation requirements, further settings via parameter adjustments are
possible.
Switch-off mode 1
DIP3/4: OFF/OFF
(Factory setting)
or
P108 = 0
Switch on
(Set enable)
1. P2 and P210 determine the starting voltage
(starting torque) that is applied to the motor.
2. The brake opens.
3. P3 and P102 determine the duration for which
the voltage is continuously increased until the
full voltage (100 %) is reached.
Switch off
(Cancellation of
release)
1. P3 and P103 determine the duration for which
the voltage is continuously reduced from
100 % to 0 %.
1)
2. The brake is applied when the voltage
reaches "0 %" or after P107 has elapsed.
1)
For technical reasons, the motor starter switches immediately to 0 % when approx. 10 % of the starting voltage is reached.
Switch-off mode 2
DIP3/4: OFF/ON
or
P108 = 1
Switch on
(Set enable)
1. P2 and P210 determine the starting voltage
(starting torque) that is applied to the motor.
2. The brake opens.
3. P3 and P102 determine the duration for which
the voltage is continuously increased until the
full voltage (100 %) is reached.
Switch off
(Cancellation of
release)
1. P2 and P210 determine the voltage (torque)
to which the motor controller immediately
drops.
2. P3 and P103 determine the duration for which
the voltage would be continuously reduced
from 100 % to 0 %. However, only the part of
the duration that is needed to reduce from the
set starting voltage (P2 or P210) to 0 % is
used.
1)
3. The brake is applied when the voltage
reaches "0 %" or after
P107
has elapsed.
1)
For technical reasons, the motor starter switches immediately to 0 % when approx. 10 % of the starting voltage is reached.