Standard Ramp With Motor Voltage Boost - Emerson Powerdrive F300 User Manual

Safety Product Mechanical
information information installation
Controller
operational
Motor Speed
Programmed
deceleration
rate

2: Standard ramp with motor voltage boost

This mode is the same as normal standard ramp mode except that the
motor voltage is boosted by 20 %. This increases the losses in the
motor, dissipating some of the mechanical energy as heat giving faster
deceleration.
00.017
Digital Input 6 Destination
{08.026}
RW Num DE
OL 00.000 to 59.999
Open-loop
Pr 00.017 sets the destination of digital input T27.
00.017 {04.012} Current Reference Filter Time Constant
RW Num
RFC-A
0.0 to 25.0 ms
RFC-S
RFC-A / RFC-S
A first order filter, with a time constant defined by Pr 00.017, is provided
on the current demand to reduce acoustic noise and vibration produced
as a result of position feedback quantisation noise. The filter introduces
a lag in the speed loop, and so the speed loop gains may need to be
reduced to maintain stability as the filter time constant is increased.
00.019 {07.011} Analog Input 1 Mode
RW Num
4-20 mA Low (-4),
OL
20-4 mA Low (-3),
RFC-A
4-20 mA Hold (-2),
20-4 mA Hold (-1),
0-20 mA (0),
20-0 mA (1),
4-20 mA Trip (2),
20-4 mA Trip (3),
RFC-S
4-20 mA (4),
20-4 mA (5), Volt (6),
Therm Short Cct (7),
Thermistor (8),
Therm No Trip (9)
In modes 2 and 3, a current loop loss trip is generated if the current falls
below 3 mA.
In modes -4, -3, 2 and 3 the analog input level goes to 0.0 % if the input
current falls below 3 mA.
Powerdrive F300 User Guide
Issue Number: 2
Electrical Getting Basic
installation started parameters the motor
DC Bus voltage
t
PT US
06.031
US
1.0 ms
US
4-20 mA (4)
Running NV Media Card
Optimization
Operation
In modes -2 and -1 the analog input remains at the value it had in the
previous sample before the current fell below 3 mA.
Pr Value
-4
-3
-2
-1
0
1
2
3
4
5
6
7 Therm Short Cct
8
9
00.020 {07.010}
RW Num
OL
RFC-A 00.000 to 59.999
RFC-S
Pr 00.020 sets the destination of analog input 1.
00.021 {07.011}
RW Txt
4-20 mA Low (-4),
OL
20-4 mA Low (-3),
RFC-A
4-20 mA Hold (-2),
20-4 mA Hold (-1),
4-20 mA Trip (2),
RFC-S
20-4 mA Trip (3),
20-4 mA (5), Volt (6)
In modes 2 and 3, a current loop loss trip is generated if the current falls
below 3 mA.
In modes -4, -3, 2 and 3 the analog input level goes to 0.0 % if the input
current falls below 3 mA.
In modes -2 and -1 the analog input remains at the value it had in the
previous sample before the current fell below 3 mA.
Onboard Advanced Technical
PLC parameters data
Pr string
4-20 mA low value on
4-20 mA Low
current loss (1)
20-4 mA low value on
20-4 mA Low
current loss (1)
4-20 mA hold at level before
4-20 mA Hold
loss on current loss
20-4 mA hold at level before
20-4 mA Hold
loss on current loss
0-20 mA
20-0 mA
4-20 mA Trip 4-20 mA trip on current loss
20-4 mA Trip 20-4 mA trip on current loss
4-20 mA
20-4 mA
Volt
Temperature Measurement
Input With Short Circuit
Detection
Temperature Measurement
Thermistor Without Short Circuit
Detection
Temperature Measurement
Therm No Trip
Input With No Trips
Analog Input 1 Destination
DE
Analog Input 2 Mode
0-20 mA (0),
20-0 mA (1),
4-20 mA (4),
UL listing
Diagnostics
information
Comments
PT US
01.036
US
Volt (6)
121