SSD 605C, Product Manual

Page: 127 / 236

Programming Your Application
6-61
605C Frequency Inverter
SLIP COMP
The slip compensation function block
allows the Inverter to maintain motor
speed in the presence of load
disturbances.
Functional Description
Based on the rated speed, the no load speed and the rated load of the motor, the slip
compensation block adjusts the demand frequency to compensate for any speed slippage
resulting from the load.
MMI Menu Map
1 SETUP PARAMETERS
2 FUNCTION BLOCKS
3 MOTOR CONTROL
4 SLIP COMP
SLIP ENABLE
NAMEPLATE RPM
MOTOR POLES
SLIP MOTOR LIMIT
SLIP REGEN LIMIT
SLIP ACTIVE
SLIP COMP
SLIP ACTIVE [762] – FALSE
FALSE – [ 82] ENABLE
–
** 1400 n/min – [ 83] NAMEPLATE RPM –
4 – [ 84] MOTOR POLES –
** 150.0 n/min
–
[ 85] MOTORING LIMIT
–
** 150.0 n/min – [ 86] REGEN LIMIT –
Parameter Descriptions
ENABLE Range: FALSE / TRUE
For the slip compensation to be operational this must be TRUE.
NAMEPLATE RPM Range: 0 to 28800 n/min
This is the rated speed of the motor at rated load.
MOTOR POLES Range: Enumerated - see
below
The number of motor poles. The values that this parameter may take are:
Enumerated Value : Number of poles
0 : 2
1 : 4
2 : 6
3 : 8
4 : 10
5 : 12
MOTORING LIMIT Range: 0.0 to 600.0 n/min
The maximum trim that will be produced by the slip compensation block when the motor is
driving the load (motoring).
REGEN LIMIT Range: 0.0 to 600.0 n/min
The maximum trim that will be produced by the slip compensation block when the motor is
being driven by the load, (regenerating).
SLIP ACTIVE Range: FALSE / TRUE
Indicates when Slip Compensation is being applied.
Speed
Rated
Speed
No Load Speed
(synchronous speed)
Rated
Torque
Torque