Parameter descriptions
Configuration example:
• Via parameter
Operation Mode 689, set operation mode "2 – (Analog Numerator/P. 686 Denomi-
nator)" for the electronic gear for a change of the gear factor by the numerator.
• Set the minimum and maximum limit for the numerator value via parameters
Analog factor at
100%
687 and Analog factor at 0% 688.
• Set the
Gear Factor Denominator 686 to the required value.
• Set multifunction input MFI1 as an analog voltage input by adjusting
Operation Mode MFI1 452
to "1 – Voltage 0…10 V".
• For the
Reference Percentage Source 1 476, select operation mode "1 - Analog Value MFI1A".
In this example, the default settings for
Analog factor at 100% 687 and Analog factor at 0% 688, an
adjusted gear factor denominator of 2 and a reference percentage of 75% will result in a gear factor
numerator of 1.1 and a reference frequency for the Slave of 10 Hz * 1,1 / 2 = 5.5 Hz.
7.5.4.4 Offset
Via the parameters Reference Frequency Source 2 492, you can select frequencies as an offset which
are added to the reference frequency.
Adding a fixed frequency to the reference frequency:
• Set parameter
Reference Frequency Source 2 492 to "3 - Fixed Frequency".
• In one of parameters 480 … 488 (fixed frequencies) set a frequency value.
• Select the fixed frequency of the set parameter via parameters 66, 67 and 131 (fixed frequency
changeover).
See chapter 7.5.1.3 "Fixed frequencies".
The frequency for the offset can be set via the operator panel if Reference Frequency Source 2 492 is
set to "5 - Keypad-Motorpot.".
Parameter Reference Frequency Source 2 492 offers further options to define the frequency for the
offset. See chapter 7.5.1 "Reference frequency channel".
7.5.4.5 Actual values
Via parameter Repetition Frequency Input 252, the reference frequency can be displayed at the repe-
tition frequency input.
Via parameter
Reference Ramp Frequency 283, the actual value of the frequency after multiplication
by the gear factor and addition of the optionally selectable repetition frequencies can be displayed.
7.5.4.6 Adjustment Options
The following instructions describe options for setting the electronic gear. The settings must be ad-
justed to the application.
0%
1.1
75%
100%
Analog Factor at 100%
= 1.2687
Analog Factor at 0%
= 0.8688
Actual value:
Reference Percentage Value
229
166
Operating Instructions
Agile
06/2013 Reference Values
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