X4 AC Drive User’s Manual
Chapter 7: X4 Parameters
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© 2007 TB Wood’s All Rights Reserved
215 Cin Filter Time
Default = 20 ms
Range: 0 to 1000 ms
Level: 2
This parameter configures the time constant of a filter of the Cin analog input. When the parameter value is set to 0 ms,
there is no software filtering of the analog input. A value above 0 ms causes the drive to filter the analog signal. Note
that long filter times will create a delay in the drive response to signal changes.
216 Vin2 Filter Time
Default = 20 ms
Range: 0 to 1000 ms
Level: 2
This parameter configures the time constant of a filter for the Vin2 analog input. When the parameter value is set to
0 ms, there is no software filtering of the analog input. A value above 0 ms causes the drive to filter the analog signal.
Note that long filter times will create a delay in the drive response to signal changes.
217 Trim Ref Enable
Default = 0
Range: n/a
Level: 2
This parameter enables or disables trimming of the drive reference by an analog input and selects which analog input
will perform the trimming function.
Speed Reference = Main ref (Trim % Factor) * value of Parameter 217 * Max Frequency / 100%
Parameter Value
Description
Disabled
No trimming of drive reference
Vin1
Value of Vin1 will be used in the calculation above
Vin2
Value of Vin2 will be used in the calculation above
Cin
Value of Cin will be used in the calculation above
Fxd Trim %
Value of Fxd Trim % will be used
Drive Reference = Drive Ref (Trim % Factor) * Max Frequency / 100%
Note that setting a parameter for a Bipolar input value allows trimming both positive and negative around the reference value.
218 Trim % Factor
Default = 0.0%
Range: -100.0% to +100.0%
Level 2
This parameter determines the percentage of the analog input signal selected in Parameter 217, Trim Ref Enable, that
will affect the reference signal.
301 Min Frequency
Default = 0.0%
Range: 0.0-Max Freq
Parameter 301, Minimum Frequency, configures the minimum frequency output of the drive. This parameter governs
the minimum frequency when operating from the keypad or from an analog input. The preset speeds can be set lower
than the minimum frequency in parameter 301.
302 Max Frequency
Default: 60 Hz
Range: 0.0 to 400.0 Hz
Parameter 302, the Maximum Frequency parameter, configures the maximum frequency output of the drive.
303 Preset Freq 1 (Jog Ref)
304 Preset Freq 2
305 Preset Freq 3
306 Preset Freq 4
307 Preset Freq 5
308 Preset Freq 6
Default: 5 Hz
Default: 10 Hz
Default: 20 Hz
Default: 30 Hz
Default: 40 Hz
Default: 50 Hz
Range: 0.0-Max Freq
Levels 1,2 for 303
Level 2 for 304-308
These parameters configure six preset speeds in addition to the normal reference speed of the drive (as defined by
parameters 201 (Input Mode) and 204 (Ref Select) and the maximum frequency of the drive (as set with parameter
302, Max Frequency). Thus, in effect, you may choose to operate the drive at up to eight different speeds.
The eight speeds are selected by a combination of three digital inputs (PS1, PS2, PS3). A wiring scheme for utilizing
preset speeds is provided on page 28 along with a truth table showing what combination of inputs results in the selection
of which speeds.
Note that parameter Parameter 303 (Preset Freq1) also serves as the reference frequency for jogging.
Table 7-2: Description of X4 Parameters (Page 6 of 26)