XMART BYPASS 6K-10K - Manual (Page 2)

Specifications of Critical Components 5
Operation 4
Transfer to Maintenance Bypass
To transfer to maintenance bypass from UPS, follow the below steps:
Step 1: Press “OFF” button of UPS unit to transfer to bypass mode.
Step 2: Open the maintenance switch door. If step 1 is not executed first, then UPS
unit will transfer to bypass mode automatically with control output signal connection
when opening the maintenance switch door.
Step 3: Transfer rotary switch to “BPS” position and switch off UPS input breaker
on the module. Then, all devices are directly powered by utility and there is no
current through the UPS. The output and input of UPS are isolated from the system.
You may now service or maintain the UPS by shutting down the batteries of UPS.
Transfer to UPS Protection
After maintenance service is done, follow below steps to transfer back to UPS
operation.
Step 1: Switch on the input breaker of the module and reconnect UPS battery input
breaker. Then UPS will enter to bypass mode.
Step 2: Transfer rotary switch to “UPS” position. Then, all devices are powered by
utility through UPS bypass mode.
Step 3: Close back maintenance switch door and press “ON” button of UPS unit. Then,
all devices are protected by the UPS.
NOTE: If maintenance will be executed in another place, before removing the UPS
and the module, please follow steps of “Transfer to Maintenance Bypass” and then
disconnect all wires between UPS and the module for complete isolation.
4)Prepare wires based on the following table:
NOTE 1: The cable for 6K/6KL should be able to withstand over 40A current. It is
recommended to use 10AWG or thicker wire for safety and efficiency.
NOTE 2: The cable for 10K/10KL should be able to withstand over 63A current. It is
recommended to use 8AWG or thicker wire for safety and efficiency.
NOTE 3: The selections for color of wires should be followed by the local electrical
laws and regulations.
5)Remove the terminal block cover on the rear panel of the module. Then connect
the wires according to the following terminal block diagrams:
UPS Model Wiring spec (AWG)
6K/6KL 10
10K/10KL 8
Connect UPS and External Maintenance Bypass Switch Module
Remove the terminal block cover on the rear panel of the module. Then connect
output terminals of UPS to output terminals of switch module. Connect utility
input terminals of UPS to UPS input terminals of switch module. Connect signal slots
of UPS and switch module with control signal cable attached to the package.
Refer to the following terminal block diagrams:
NOTE : Make sure that the wires are connected tightly with the terminals.
Put the terminal block cover back to the rear panel.
UPS
Maintenance
Bypass Switch
Module
Output Line
Output
Neutral
Input Neutral
Input Line
Parameter Max.
Input breaker
Current 63 A
Voltage 250 V
Current 63 A
Voltage 690 V
Current 76 A
Voltage 600 V
Bypass switch
Input/Output terminal