External Battery Cabinet Connection Precautions - Tripp Lite SUTX20K Owner's Manual

3. Installation and Wiring

3.7 External Battery Cabinet Connection Precautions

WARNING:
1. Connect loads to the UPS only after the batteries are fully charged. This guarantees that the UPS can provide
sufficient backup power to the loads connected when a power failure occurs.
2. When using both the UPS internal batteries and external batteries, ensure the voltage difference is <5V DC.
Battery
1. Charge Voltage
1) Float voltage: ±272V DC (default)
2) Boost voltage: ±280V DC (default)
2. Charge Current
1) Minimum: SUTX20K/SUTX40K
2) Maximum: SUTX20K/SUTX40K
3) Default: SUTX20K
SUTX40K
3. Low Battery Shutdown: 200V DC (default: 200V DC)
4. Number of Batteries: 12V DC x 80 pcs. (default)
Notes:
1. Charge current is adjustable from 1A to the 5A maximum in increments of 0.5A.
2. To modify the default charge current setting or default low battery shutdown setting, contact your local dealer or service personnel.
AC Input
Bypass Input
3Ø4W
Main
Source UPS 1
AC Input
Second
3Ø4W
Source Bypass Input
(for Bypass)
UPS 2
AC Input
Bypass Input
UPS 4
(Figure 3-16: Parallel Units Dual Input Wiring Diagram)
g
1A
g
5A
g
1.5A
g
2A
UPS Output
Parallel Port
UPS Output
Parallel Port
Parallel Port
UPS Output
Parallel Port
20
3Ø4W
LOAD