PowerWalker VFI 20000-40000TAP 3/3 BI, User Manual

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4-14
4.6 Installing a REPO Switch
Before installing a REPO switch, verify that the UPS was installed according to the
instructions in paragraphs 4.2 through 4.5.
NOTE 1
A latching-type Remote Emergency Power-off (REPO) switch can be used in an emergency to shut down the
UPS and remove power to the critical load from a location away from where the UPS is installed. Shows a
REPO switch.
When installing the REPO switch, you must install conduit between the device and
the UPS cabinet for wiring the switch.
NOTE 2
The REPO switch must be a normally-open or normally-closed latching-type switch
not tied into any other circuits.
NOTE 3
The REPO switch wiring must be in accordance with local regulations. NOTE 4
To Install a REPO switch:
1. Verify the UPS system is turned off and all power sources are removed. See Chapter 6, “UPS Operating
Instructions,“ for shutdown instructions.
2. Securely mount the REPO switch. Recommended locations include operator's consoles or near exit doors.
3. To locate the appropriate terminals and review the wiring and termination requirements, see
paragraph 3.2.3, Table 4-3, Figure 4-6, Figure 4-7, and Figure 4-13.
Figure 4-13. REPO Terminal Block Connector Assignments
Table 4-3. REPO Connections
REPO Terminal Description
1
Input: normally-closed dry contact used to activate UPS EPO from a remote switch.
2
3
Input: normally-open dry contact used to activate UPS EPO from a remote switch.
4
UPS System Installation
4-22 Eaton 9E UPS (40–60 kVA, 208/220V) Installation and Operation Manual P-164000058—Rev 2
Figure 4-19. REPO Terminal Block Connector Assignments
4. Route the REPO wiring to the terminal block:
a. If not already removed, remove the power terminal cover right and left sides (see Figure 4-9). Retain
the cover top and hardware for later use.
b. If not already removed, remove the power terminal cover top. Retain the cover top and hardware for
later use.
c. Remove the screws securing the top rear panel (see Figure 4-10). Supporting the panel, tilt the panel
away from the cabinet and disconnect the fan connectors from the wiring harnesses.
d. Remove the panel. Retain the panel and hardware for later use.
e. Remove the interface terminal cover (see Figure 4-13). Retain the cover and hardware for later use.
f. Punch or drill a hole in the power terminal cover base (see Figure 4-5, Figure 4-6, and Figure 4-14) for
the REPO conduit.
g. Route the wiring along the interface wiring channel (see Figure 4-14) until the wire clears the shelf.
h. Route the wire along the shelf under the interface housing to the wiring access (see Figure 4-15).
i. Supporting the top rear panel at the back of the cabinet, reconnect the fan connectors to the wiring
harnesses.
j. Reinstall the top rear panel by tilting into position and securing the panel using the retained hardware.
k. Reinstall the power terminal cover top using the retained hardware.
l. Install the power terminal cover right and left sides using the provided hardware.
5. Connect the wiring as shown in Table 4-4 and Figure 4-20 for a normally-open REPO or Table 4-5 and
Figure 4-21 for a normally-closed REPO.
Table 4-3. REPO Connections
REPO Terminal Description
1
Input: normally-closed dry contact used to activate UPS EPO from a remote switch.
2
3
Input: normally-open dry contact used to activate UPS EPO from a remote switch.
4
NOTE The two upper fans are attached to the top rear panel.
NOTE Conduit and wiring enter from the bottom of the conduit landing plate.
Normally Closed
REPO Contacts
Normally Open
REPO Contacts
UPS
For Internal Use Only
UPS
Normally Closed
REPO Contacts
Normally Open
REPO Contacts
4. Normally-Open REPO Switch Wiring see Table 4-4 and Figure 4-14,Normally-Closed REPO Switch Wiring
seeTable 4-5 and Figure 4-15 .