
Chapter 4 -SETTING-UP AND COMMISSIONING
584S Frequency Inverter
4-17
Setpoint Scale
This option provides setpoint ratio functions for the local operator station and both remote setpoints, manual and
auto. The manual and auto setpoints are summed with the trim before being scaled by a
RATIO
and a
DIVIDER
and
clamped between
MIN
SPEED
and
MAX
SPEED
.
LOCAL RATIO
The local ratio is the factor which the local setpoint is multiplied by.
Range
-3.0000 to +3.0000
Default
1.0000
LOCAL DIVIDER
The local divider is the factor by which the local setpoint is divided by.
Range
-3.0000 to +3.0000
Default
1.0000
MANUAL RATIO
The manual ratio is the factor which the manual setpoint is multiplied by.
Range
-3.0000 to +3.0000
Default
1.0000
MANUAL DIVIDER
The manual divider is the factor by which the manual setpoint is divided by.
Range
-3.0000 to +3.0000
Default
1.0000
AUTO RATIO
The auto ratio is the factor which the auto setpoint is multiplied by.
Range
-3.0000 to +3.0000
Default
1.0000
AUTO DIVIDER
The auto divider is the factor by which the auto setpoint is divided by.
Range
-3.0000 to +3.0000
Default
1.0000
Framp Time
This is the time taken for the drive to ramp the frequency from
LIMIT
FREQUENCY
to 0Hz, when the
FRAMP
parameter is configured as
FRAMP (
see
RECONFIG I/Ps
parameter in the System menu ) and terminal 21 is
high, and the RUN signal is removed.
The
FRAMP
is followed by a DC holding pulse with duration determined by
the
DC PULSE TIME
. The range and default values are:
Range :
0 to 3000s
Default :
1.0s
NOTE: The FRAMP digital input is used only to select the
FRAMP
TIME
. The RUN signal must
always be removed to initiate the stop sequence.
Jog Speed
The
JOG
SPEED
parameter determines the speed that the drive will run at when the JOG terminal, 24, is raised to
+24V (terminal 18) or the JOG button to the MMI is depressed ( depending which is active ) The
JOG
SPEED
parameter can only be altered when the
RECONFIG
I/Ps
parameter in the "
SYSTEM
" menu is set to 4 PRESETS
& JOG.
Range :
- LIMIT
FREQUENCY
to
+LIMIT
FREQUENCY
Default :
5.0Hz
NOTE: JOG has priority over RUN
Digital MOP
The
DIGITAL
MOP
provides the feature of an internal motorised potentiometer (MOP). The setpoint can be
changed by an increase / decrease function. In order for the
DIGITAL
MOP
to operate, the
RECONFIG
I/Ps
parameter in the "
SYSTEM
" menu must be set to DIGITAL MOP & PRESET. Once configured, terminal 25, acts
as setpoint RAISE, while terminal 26, acts as setpoint LOWER. The JOG, terminal 24, is reconfigured to provide a
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