American Power Conversion 250 A manual How to connect contacts to the user interface board

How to Connect User Input Contacts and Relay Outputs to the ATS

How to connect contacts to the user interface board

To connect and monitor your contacts:

1.Choose one or more terminals on the user interface board for connecting contacts. The user interface board is connected to the User/EPO port on the ATS monitoring unit.

2.From the ATS display interface:

a.Press ESC or ENTER to go to the top-level menu screen.

b.Select Config from the top-level menu screen and press ENTER.

Load-Meter Stats

ATS/Voltage Alarms

Generator Config

Testing Help

c. Select Contacts & Relays from the Config menu screen and press ENTER.

System/Network

Contacts & Relays

Sub-Feed Config.

Electrical Config.

d. Select the type of contact you are connecting: Contact Inputs or Relay Outputs.

Contact Inputs

Relay Outputs

Output Relay Map

You will be prompted for your password to configure these items.

Note

e.Press the Up or Down arrow to select the appropriate contact number and press ENTER.

f.Press the Down arrow to enter a unique Name for the contact and to configure the Normal state of the contact (Open or Closed). The default Normal state is Open. Press ENTER to select the item you wish to configure.

Contact In 02 of 04

Name User Contact 4

Normal: Open

Status: Open

g.Connect contact wires (300 V-rated cabling required) to the terminal block on the user interface board. You will need a 2.5-mm standard screwdriver.

h.Run the wires out the roof of the ATS to your contact’s location.

Ensure the wires are properly retained and kept away from high-voltage wires and breakers.

Caution

62 InfraStruXure Power Generation System