_REF – Reference structure Subject area • 95Parameter Description MC6000/7000
_ENCD
_VAL
Index
_VFCON
_PMOD
_KPAD
Contents
Introduction
_SIO
_SCTY
_REF
_SYS
_IO1
_IO2
_CAN
_OPT1
_MOT
_CONF
_TCON
_SCON
_PCON
_REF – Reference structure
842-ACCR - Acceleration ramp for speed control
Source: Acceleration Ramp
Function: Acceleration ramp (only with speed control)
Í Structure of reference input, page 24
852-DECR - Deceleration ramp for speed control
Source: Deceleration Ramp
Function: Braking ramp (only with speed control)
Í Structure of reference input, page 24
Values:
Minimum Maximum Factory set. Unit MODE SMARTCARD Type
0 65535 0 rpm/s R1W2 REFRC USIGN16
Note:
The acceleration ramp can be deactivated by setting ACCR very high (> 30.000 rpm
per s). Then the drive accelerates to the reference speed at maximum torque.
The complete ramp generator can be shut off by means of ACCR = 0 or DECR = 0
(acceleration and braking ramp inactive!).
Values:
Minimum Maximum Factory set. Unit MODE SMARTCARD Type
0 65535 0 rpm/s R1W2 REFRC USIGN16
Note:
The speed changes with parameter DECR if the reference is set lower. The braking
ramp can be shut off by setting DECR very high (> 30,000 rpm per s). Then the drive
brakes at maximum torque.
The complete ramp generator can be shut off by means of ACCR = 0 or DECR = 0
(acceleration and braking ramp inactive!).
When the START signal is canceled the drive runs uncontrolled! If this is not wanted,
use quick-stop with stop ramp STOPR. If a holding brake is fitted, check the setting
of the BRAKE parameter.
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