Reliance electric GV3000SE, Instruction Manual

Page: 113 / 198

4 - GENERAL PARAMETERS, DESCRIPTION
49'1329 e GV3000/SE 4 - 19
P.023 MOP Accel/Decel Time
Parameter Range: 0.1 - 999.9 seconds
Initial Setting: 20.0 (20 seconds)
Type: Tunable (at rest or during operation)
Refer to: P.004 Maximum Speed
U.017 Motor Top Speed
P.024 MOP Reset
Description: For volts/hertz regulation, the MOP (Motor Operated Potentiometer) reference rate
sets the amount of time (seconds) for the MOP to ramp from zero speed to
Maximum Speed (P.004) or from Maximum Speed to zero speed.
For vector regulation, the MOP reference rate sets the amount of time (seconds) for
the MOP to ramp from zero speed to Motor Top Speed (U.017) or from Motor Top
peed to zero speed when Jog is selected.
Refer to Regulator Reference Block Diagram, Figure 4-1.
P.007 selects the digital inputs to be operated for speed increase or decrease. With
P.008 =1 the MOP speed reference is selected to be activated speed either at
LOCAL and AUTO modes or at REMOTE.
This MOP acts in series with Ramp/S-Curve rates (in P.001/P.002 or P.017/P.018 at
RUN). During FASTER/ SLOWER the drive follows the higher time setting.
The Ramp/S-Curve rates (ramp 1: P.001/P.002, ramp 2: P.017/P.018) are effective
when performing a controlled stop or to accelerate after START command to
setpoint speed. Refer to P.024 for MOP reset.
This MOP is not identical to the keypad operated Accelerator/Decelerator (called
Local Setpoint) at LOCAL/MANUAL mode.
P.024 MOP Reset Configuration
Parameter Range: 0 = Reset MOP setpoint after IET
1 = Reset MOP setpoint during each stop
2 = Do not reset MOP setpoint
Initial Setting: 0
Type: Tunable (at rest or during operation)
Refer to: P.003 Minimum Speed
P.008 Terminal Strip Speed Reference Source
Description: This parameter determines when and if the MOP (Motor Operated Potentiometer)
setpoint is reset to Minimum Speed (P.003).
Important : If the drive is powered down and powered back up, the MOP function reference will
always be reset to equal Minimum Speed (P.003).
The MOP provides a digital speed reference that can be increased and decreased
using terminal strip digital inputs
When the MOP function is set and then disabled by using parameter P.008
(Terminal Strip Speed Reference Source), the last value in effect prior to the MOP
being disabled will be retained.