Vacon 500X, Руководство пользователя

Страница: 90 / 124

Tel. +358 (0)201 2121 • Fax +358 (0)201 212205
89
z
vacon vacon 500x parameters
7
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 0, which signifies that no access code is necessary. Any number
between 1 and 9999 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 0.
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 Vacon 500x 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 or 48FS function in parameter 204.
814 Display Status Default: Drive Load
Range: 0.0%-200.0%
Level 2
This parameter allows configuration of the additional parameter status field on the operate screen. The
following fields can be configured:
Parameter Value Description Range Limit
Voltage OutVoltage being supplied to the motor Rated motor voltage
Current OutCurrent being supplied to the motor 200% of drive rating
Drive LoadCalculated percentage of drive rating 200% of drive rating
Drive TempCalculation of total drive temp rating 100% of unit temp rating
Power OutCalculated power output of drive 250% of drive rating
% of FLACalculated percentage of drive rating Percent of motor FLA
816 Fly Catch Mode Default: Sweep Fwd
Range: n/a
Level 2
This parameter configures how the “catch on the fly” operates.
Parameter Value Description
Sweep FwdCatch on the fly algorithm sweeps through frequencies only in the forward direction while searching for the
operating frequency
Sweep RevCatch on the fly algorithm sweeps through frequencies only in the reverse direction while searching for the
operating frequency
Sweep F/RCatch on the fly algorithm sweeps through frequencies in both directions while searching for the operating
frequency. The direction that is chosen first depends on the direction of the command
given to the drive. Note that this option is slower than the other two modes of operation.
819 Flt Text #1 Default: User Flt 1
Range: n/a
Level 2
This parameter defines text to be displayed for fault message #1. All ASCII options are permitted.