
Chapter 4 - SETTING-UP AND COMMISSIONING
4-16
584S Frequency Inverter
RAMP
+
INJECTION
The motor speed is controlled down to zero at a rate set by the
RAMP
DOWN
TIME
parameter. A timed DC pulse is then applied to hold the shaft. The DC
pulse amplitude is set by the voltage boost.
Default
RAMP
Stopping Control
The stopping control menu contains parameters associated with the stopping modes.
DC PULSE TIME
.
This parameter governs the duration of the d.c holding pulse applied to the
motor at the end of a
RAMP + INJECTION
or
FRAMP
stopping sequence.
The amplitude of the d.c. holding pulse is governed by
VOLTAGE BOOST
setting.
Range:
0.1s to 20.0s
Default: 2.0s
INJ TIMEOUT
This parameter governs the maximum allowed duration of low frequency
injection braking. If low frequency injection braking persists for longer than
the
INJ TIMEOUT
duration, injection braking is terminated and a 2.0s d.c.
holding pulse is forced.
Range:
0.1s to 600.0s
Default: 120.0s
Setpoint Select
This option enables the user to configure the manual and auto setpoints. The MANUAL/AUTO digital input
(terminal 27) can be used to switch between manual and auto setpoints.
MANUAL
SETPOINT
There are 12 possible sources for the
MANUAL
SETPOINT
1.
analogue input terminal 1,
0V TO +10V
2.
analogue input terminal 1,
-10V TO +10V
3.
AUX
SETPOINT
parameter
4.
PRESET
SPEED
1
parameter
5.
PRESET
SPEED
2
parameter
6.
PRESET
SPEED
3
parameter
7.
PRESET
SPEED
4
parameter
8.
PRESET
SPEED
5
parameter
9.
PRESET
SPEED
6
parameter
10.
PRESET
SPEED
7
parameter
11.
PRESET
SPEED
8
parameter
12.
DIGITAL
MOP
parameter
Default
0V TO +10V
AUTO
SETPOINT
There are 7 possible sources for the
AUTO
SETPOINT
1.
analogue input terminal 3,
I LOOP 0-20mA
2.
analogue input terminal 3,
I LOOP 20-0mA
3.
analogue input terminal 3,
I LOOP 4-20mA
4.
analogue input terminal 3,
I LOOP 20-4mA
5.
SERIAL LINK
, serial link setpoint parameter
6.
DIGITAL
PRESET
, preset speed selected by digital input
terminals 25, 26 and 24
7.
SPEED
FEEDBACK
, measured speed of a different motor as a
setpoint.
Default
I LOOP 0-20mA
TRIM
CHOICE
The bipolar, -10V to +10V, speed trim, terminal 2, can be selected to operate
with manual setpoints only, auto setpoints only or with manual and auto
setpoints simultaneously. The Default is
MANUAL & AUTO
.
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Summary of Contents for 584S
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