Lowell Manufacturing Co.
UPS-XBDM-20RCD User Manual
Page 14
Bypass Distribution Module
User’s Operations
The purpose of this BYPASS DISTRIBUTION MODULE is to allow servicing of the UPS so as not to affect the LOADs
connected and protected. To transfer between UPS and utility sources, swiftly actuate the bypass switch to the
opposite position. Both the UPS, and Utility lights available must be illuminated to prevent transferring to a non-
powered source.
Normal Operation
When operating in NORMAL mode the switch on the front of the XBDM will be in the UPS position
XBDM Bypass Switch – UPS
CAUTION: The red LED on the bypass module must be illuminated before transferring to the UPS position.
Bypass Operation
To transfer your equipment to Maintenance Bypass (AC Line operation) and remove the UPS:
1. Toggle the Bypass Switch on the XBDM to UTILITY position. The XBDM is now powering your equipment
from Utility power.
Figure 23 – XBDM Bypass Switch - UTILITY
CAUTION: The Orange LED must be illuminated before transferring to BYPASS operation.
CAUTION: When the XBDM is operating in UTILITY MODE, the LOAD connected is not protected from power out
-
ages.
2. Press the OFF BUTTON on the UPS per the UPS manufacturers’ documentation.
3. If any optional Extended Battery Packs or Modules are connected to the UPS, turn off the circuit breaker
on the battery pack or module (if applicable), and disconnect the cable from the battery pack or module
to the UPS.
4. Disconnect the UPS output cord from the XBDM to the UPS output receptacle.
5. Disconnect the UPS INPUT CORD from the UPS INPUT RECEPTACLE on the XBDM.
6. Remove the UPS.
