User Manual Instruction Manual

13-78 GV6000 AC Drive User Manual
13.29.2.1 Cooling Tower Fans
Draft/wind blows idle fans in reverse direction. Restart at zero damages fans, breaks
belts. Flying start alleviates the problem
13.30 Linking Parameters
Most parameter values are entered directly by the user. However, certain parameters
can be “linked,” so the value of one parameter becomes the value of another. For
Example: the value of an analog input can be linked to [Accel Time 2]. Rather than
entering an acceleration time directly (via HIM), the link allows the value to change by
varying the analog signal. This can provide additional flexibility for advanced
applications.
Each link has 2 components:
• Source parameter – sender of information.
• Destination parameter – receiver of information.
Most parameters can be a source of data for a link, except parameter values that
contain an integer representing an ENUM (text choice). These are not allowed, since
the integer is not actual data (it represents a value). Table 13-6 lists the parameters
that can be destinations. All links must be established between equal data types
(parameter value formatted in floating point can only source data to a destination
parameter value that is also floating point).
Establishing A Link
1. Select a valid destination parameter (see Table 13-6) to be linked. The parameter
value screen will appear.
2. Press SEL to highlight the LIMITS tab.
3. Press ENTER, and the cursor will move to the SOURCE line.
4. Press UP/DOWN arrows to select the source parameter.