Parker 590+ series, Product Manual

Page: 449 / 545

Programming
D-105
DC590+ Series DC Digital Drive
RAMPS
Parameter Tag Range
RAMP HOLD 118 OFF / ON
When ON, the ramp output is held at its last value. This is overridden by a ramp reset.
INVERT 620 FALSE / TRUE
Inverts the RAMP INPUT signal.
RAMP INPUT 5 -105.00 to 105.00 %
Input value.
% S-RAMP 266 0.00 to 100.00 %
Percentage of ramp with S-shaped rate of change. A value of zero is equivalent to a linear ramp. Changing this value affects the ramp times.
RAMPING THRESH. 286 0.00 to 100.00 %
Ramping flag threshold level. The threshold is used to detect whether the ramp is active.
AUTO RESET 287 DISABLED / ENABLED
When ENABLED, the ramp is reset whenever SYSTEM RESET is TRUE. (SYSTEM RESET Tag 374 is an internal flag that is set TRUE for one
cycle after the Speed/Current loop is enabled, i.e. every time the drive is started).
EXTERNAL RESET 288 DISABLED / ENABLED
When ENABLED, the ramp is reset to RESET VALUE. EXTERNAL RESET does not depend on AUTO RESET for its operation.
RESET VALUE 422 -300.00 to 300.00 %
The ramp output value at power-up, or when the ramp is reset. In order to catch a spinning load smoothly (`bumpless transfer’) connect SPEED
FEEDBACK Tag No. 62 (source) to RESET VALUE Tag No. 422 (destination).
RAMP OUTPUT 85
.xx %
Setpoint ramp output.
RAMPING 113 FALSE / TRUE
The SETPOINT ramp function block is limiting the rate of change of Speed Setpoint.