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Parker 690+ series User Manual

Parker 690+ series
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1-122 Programming Your Application
690+ Series Frequency Inverter
TORQUE LIMIT
Designed for all Motor Control Modes.
This function block allows you to set the
maximum level of motor rated torque which
is allowed before torque limit action occurs.
If the estimated motor torque is greater than
the ACTUAL POS LIM value, the motor
speed is controlled to maintain the torque at
this level. A similar situation occurs if the
estimated motor torque is less that the ACTUAL NEG LIM value.
The torque limit function block has separate positive and negative torque limits. In addition, a
symmetric main torque limit is also provided.
The lowest positive and negative torque limits (including any current limit or inverse time
current limit action) is indicated in the ACTUAL POS LIM and ACTUAL NEG LIM
diagnostic. These are the final limits used to limit motor torque.
Torque Limit
ACTUAL POS LIM [1212]
0.00 %
ACTUAL NEG LIM [1213]
0.00 %
150.00 %
[1208] POS TORQUE LIM
-150.00 %
[1209] NEG TORQUE LIM
150.00 %
[1210] MAIN TORQUE LIM
150.00 %
[1554] FAST STOP T-LIM
FALSE
[1211] SYMMETRIC LIM
MMI Menu Map
1
SETUP
2
MOTOR CONTROL
3
TORQUE LIMIT
POS TORQUE LIM
NEG TORQUE LIM
MAIN TORQUE LIM
FAST STOP T-LIM
SYMMETRIC LIM
ACTUAL POS LIM
ACTUAL NEG LIM
Parameter Descriptions
POS TORQUE LIM
Range: -300.00 to 300.00 %
This parameter sets the maximum allowed level of positive motor torque.
NEG TORQUE LIM
Range: -300.00 to 300.00 %
This parameter sets the maximum allowed level of negative motor torque
MAIN TORQUE LIM
Range: 0.00 to 300.00 %
This parameter sets the symmetric limit on the maximum allowed motor torque.
FAST STOP T-LIM
Range: 0.00 to 300.00 %
This parameter sets the torque limit used during a Fast Stop.
SYMMETRIC LIM
Range: FALSE / TRUE/
When TRUE, the NEG TORQUE LIM is forced to reflect the POS TORQUE LIM parameter.
ACTUAL POS LIM
Range: —.00 %
This diagnostic indicates the final actual positive torque limit including any current limit or
inverse time current limit action.
ACTUAL NEG LIM
Range: —.00 %
This diagnostic indicates the final actual negative torque limit including any current limit or
inverse time current limit action.

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Parker 690+ series Specifications

General IconGeneral
Frequency50/60 Hz
Overload150% for 60 seconds
Communication OptionsEthernet
Protection RatingIP20
Operating Temperature0°C to 55°C
ProgrammabilityYes
Communication PortsRS485
I/O CapabilityDigital and Analog I/O
Programming LanguagesFunction Block Diagram
DimensionsVaries by module

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