
X4 AC Drive User’s Manual
Chapter 7: X4 Parameters
1428D-0607
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© 2007 TB Wood’s All Rights Reserved
805 Display Units(1)
Default: RPM: 1
Range: n/a
Level 2
This parameter determines the three-character customer display units used when parameter 804 is set to User Units.
The last digit indicates the number of decimal places to be shown on the display. Up to three decimal places are
possible.
809 Display Scale
Default: 1
Range: 1-65535
Level 2
This parameter determines how the reference or output of the drive will be displayed to the user. It selects the maximum
scaling of the display when running at maximum frequency.
810 Language
Default: English
Range: 1-65535
Level 2, Macro
This parameter configures the language text strings will be displayed in. The following data values may be assigned:
Parameter Value
English
Italian
Spanish
French
German
811 Access Code
Default: 0
Range: 0-9999
Level 2
The security Access Code allows the user to control access to the programmable functions of the inverter. The initial
value of this parameter is 000, which signifies that no access code is necessary. Any number between 001 and 999
may be used for an access code, but is not necessary. If an access code is entered, you will not be able to view the
values while scrolling through parameters. Only after the Shift key is pressed will the actual value appear.
To enter an access code, re-program parameter 811 as you would any other parameter. After the new value is stored,
you have 10 minutes of free access. If you remove power and then restore it, you will need to enter the access code to
change any program parameter. If you enter an incorrect access code, the drive displays **WRONG CODE** and allows
only viewing rights to the various parameters. Once the correct code is entered, you again have 10 minutes of free
access unless power is removed and restored. To disable the access code requirement, set parameter 811 back to 000.
812 Freq Ref Output
Default: 6FS
Range: n/a
Level 2
The Frequency Reference Output parameter determines the frequency pulse-train output from the DOP terminal. This
digital output is a pulse train that can be linked to another drive or to a field meter for speed indication. The pulse train
is a 50% duty cycle signal and requires a pull-up resistor of approximately 4.7 kOhms.
The following data values may be assigned to this parameter:
Parameter Value
6FS
48FS
813 Speed Ratio
Default: 100.0%
Range: 0.0%-200.0%
Level 2
The Master / Follower Speed Ratio parameter allows the pulse train output of one X4 series drive (master) to be used
to control the speed of up to 8 other follower drives. The output of each follower can be individually programmed, or
trimmed “ON-THE-FLY” with A2-RATIO. The range of adjustment is 0-200% of the master. This function only works
when using the 6FS function in parameter 204.
Table 7-2: Description of X4 Parameters (Page 21 of 26)
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