Omron SYSDRIVE 3G3RV, User Manual

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6
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K K K K
Accelerating and Decelerating Constant Frequencies in the Analog Refer-
ences (+/- Speed)
The
+/- speed function increments or decrements the frequency set in analog frequency reference d4-02 (+/-
Speed
Limit) using two contact signal inputs.
To
use this function, set one of the parameters H1-01 to H1-05 (multi-function terminal inputs S3 to S7 func-
tion
selection) to 1C (Trim Control Increase command) and 1D (Trim Control Decrease command). Be sure to
allocate
two terminals so that the Trim Control Increase command and Trim Control Decrease command can
be
used as a pair.
n
Related Parameters
n
Trim Control Increase/Decrease Command and Frequency Reference
The
frequency references using Trim Control Increase/Decrease command ON/OFF operations are shown
below.
n
Application Precautions
• Trim
Control Increase/Decrease command is enabled when speed reference > 0 and the speed reference is
from
an analog input.
• When
the master speed frequency reference value from the analog input - d4-02 < 0, the frequency refer-
ence
is set to 0.
• The
auxiliary frequency reference is added after calculating the master speed frequency reference ±
d4-02.
•
If
only the Trim Control Increase command or Trim Control Decrease command has been set for a multi-
function
contact input terminal S3 to S7, operation error OPE03 (invalid multi-function input selected)
will
occur.
Param-
eter
Num-
ber
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
Parame-
ter Num-
ber
V/f
V/f
with
PG
Open
Loop
Vec-
tor
LCD Display
d4-02
+/-
speed limits
Set
the frequency to be add to or subtracted
from
the analog frequency reference as a per-
cent,
taking the maximum output frequency to
be
100%.
Enabled
when the increase (+) speed command
or
decrease (-) speed command is set for a
multi-function
input.
0
to 100
10% No A A A 299H
Trim
Control
Lvl
Frequency Reference
Set Frequency Refer-
ence
+ d4-02
Set Frequency Refer-
ence
- d4-02
Frequency Reference
(d4-02 not added or subtracted)
Trim
Control Increase
Command
Terminal
ON OFF ON OFF
Trim
Control Decrease
Command
Terminal
OFF ON ON OFF