Group 20 Limits - ABB ACSM1 Firmware Manual

Group 20 LIMITS
Definition of drive operation limits.
20
20 LIMITS
Firmware block:
LIMITS
(20)
Adjusts the drive speed, current and
torque limits, selects the source for
the positive/negative speed reference
enable command and enables the
thermal current limitation.
20.01 MAXIMUM SPEED
Defines the allowed maximum speed. See also parameter
0...30000 rpm
20.02 MINIMUM SPEED
Defines the allowed minimum speed. See also parameter
-30000...0 rpm
20.03 POS SPEED ENA
Selects the source of the positive speed reference enable command.
1 = Positive speed reference is enabled.
0 = Positive speed reference is interpreted as zero speed reference (In the figure below 3.03
SPEEDREF RAMP IN is set to zero after the positive speed enable signal has cleared). Actions in
different control modes:
Speed control: Speed reference is set to zero and the motor is stopped along the currently active
deceleration ramp.
Torque control: Torque limit is set to zero and the rush controller stops the motor.
3.03 SPEEDREF RAMP IN
1.08 ENCODER 1 SPEED
Example: The motor is rotating in the forward direction. To stop the motor, the positive speed enable
signal is deactivated by a hardware limit switch (e.g. via digital input). If the positive speed enable
signal remains deactivated and the negative speed enable signal is active, only reverse rotation of the
motor is allowed.
Bit pointer: Group, index and bit
20.03 POS SPEED ENA
20.04 NEG SPEED ENA
TLF10 2 msec
[ 1500 rpm ]
20.01 MAXIMUM SPEED
[ -1500 rpm ]
20.02 MINIMUM SPEED
[ TRUE ]
< 20.03 POS SPEED ENA
[ TRUE ]
< 20.04 NEG SPEED ENA
[ 0.00 A ]
20.05 MAXIMUM CURRENT
[ 300.0 % ]
20.06 MAXIMUM TORQUE
[ -300.0 % ]
20.07 MINIMUM TORQUE
FW block: LIMITS (see above).
Allowed maximum speed.
FW block: LIMITS (see above).
Allowed minimum speed.
FW block: LIMITS (see above).
LIMITS
27
(5)
22.08 SPEED TRIPMARGIN.
22.08 SPEED TRIPMARGIN.
Parameters and firmware blocks
97