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CHAPTER 4: SETPOINTS
FASTPATH:
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Path:
Setpoints > Inputs > Contact Inputs
The Contact Inputs menu contains configuration settings for each Contact Input as well as
voltage threshold for all Contact Inputs. Upon start-up, the relay processor determines
(from an assessment of the installed modules) which Contact Inputs are available, then
displays settings for only these inputs.
VOLTAGE THRESHOLD /Slot F/G/H
Range: 17, 33, 84, 166 VDC
Default: 33 VDC
The setting determines the minimum voltage required to detect a closed Contact Input.
The value is selected according to the following criteria: 17 for 24 V sources, 33 for 48 V
sources, 84 for 110 to 125 V sources and 166 for 250 V sources.
For internal wetting set the Voltage Threshold to 17V.
NAME
Range: Up to 13 alphanumeric characters
Default: CI 1
An alphanumeric name may be assigned to a Contact Input for diagnostic, setting, and
event recording purposes. The CI X ON (Logic 1) FlexLogic™ operand corresponds to
Contact Input "X" being closed, while CI X OFF corresponds to Contact Input "X" being
open.
INPUTS
4–89
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