96
SPX advanced – description of parameters
SPX ADVANCED APPLICATION MANUAL
SVCH0203—October 2017 www.eaton.com
Code
ID
Parameter
Notes
P1.6.3.1
609
Torque Limit “Torque limit”
The general torque limit for both motoring and generator sides. This value is the
final limit for all scaling functions. This value should not be used for scaling but for
maximum safety limit because the ramp up rate function is ineffective when this
parameter is changed. Only the motoring side torque limit has a ramp up limiting
function.
P1.6.3.2
1287
Motoring torque limit “MotorTorqueLimit”
Motoring side torque limit. This limit value is used for all scaling functions and torque
limit ramp rate functions if activated.
P1.6.3.3
1288
Generator torque limit “GenerTorqueLimit”
Generator side torque limit. This limit is used for all scaling functions generator side
torque limit is not included in ramp up rate function.
P1.6.3.4
1625
Motoring torque limit 1 “Mot.TorqueLim 1”
Motoring side torque limit that is activated by digital input
P1.6.3.5
1627
Generator torque limit 1 “Gen. Torque lim 1”
Generator side torque limit that is activated by digital input.
5.6.3.3 Torque follower function
Torque follower function will keep the internal torque limit
near the actual torque so that when the torque demand
increases, the increase rate is controlled by the torque limit
increase rate parameter.
Code
ID
Parameter
Notes
P1.6.3.6
1706
Torque follower “Torque follower”
Activates the torque follower function and ramp rate limiter
function for torque limit.
0 = Not used
1 = Motoring
2 = Generator
3 = Mo Generator
P1.6.3.7
1502
Torque limit increase rate “TorqueLimInc.rate”
Defines the torque limit increase rate. Decreasing power limit will be in effect
immediately.
P1.6.3.8
1533
Torque limit follower hysteresis “TorqueFoll.Hyst”
Defines the hysteresis of the actual torque where the internal torque limit is kept while
the input torque limit is higher than the actual torque.
Input Torque
Limit
Torque limit
80 %
Internal
Torque Limit
Hysteresis
Actual
Torque
This function can be used together with the power limit
ramp rate function because a low power limit at low speed
will give high torque and may cause mechanical stress in
the system.
