Allen-Bradley 1407-CGCM, User Manual, Page: 86 / 252

Rockwell Automation Publication 1407-UM001H-EN-P - November 2014
#HAPTER CGCM Unit Configuration
5%,4AB
The UEL tab is used to configure the unit’s settings related to operation of the
Under-excitation Limiting (UEL) function. The values entered in this tab
establish break points in a piecewise linear curve that defines the characteristic
curve for this function. See the generator manufacturer’s data for the proper
setting information.
Refer to Chapter 3 for more information on the operation of the UEL function.
•
Under-excitation Limiting Enable – Select this check box to enable
over-excitation limiting. Tag
UEL_En in the configuration table stores
this parameter. In addition to selecting the check box, which sets the
UEL_En tag in the configuration table, the UEL_En tag in the Output
(Scheduled Write) Data table must also be set to enable this function. In
Series B deices with firmware revision 3.3 or earlier, the UEL limiter
operates if either the enable box is checked or the
UEL_En tag in the
Output (Scheduled Write) Data table is set.