Xtreme TX90 6kVA - Input Configuration

Xtreme Power Conversion Corporaon
TX90 6kVA & 10kVA Service Manual
Page 11
Uninterrupble Power Supply
L11 NOT USED: all systems are single input
N1, L12, G1: the terminals for ulity input with single input connecon
G1: the terminal for UPS input ground
N1: line 1 (L1) input
L12: line 2 (L2) input
G2, N22, L22, N21, L23, L21: the terminals for UPS output, see below output opons for conguraon details
G2: the terminal for UPS output ground
Remarks:
1. The maximum current for each terminal is 30 Amps for 6 kVA, 50 Amps for 10 kVA.
2. The UPS is always a Single Input conguraon. The Dual Input conguraon is not used. The AC source can
be 208V or 240V landed to the L12 and N1 terminals.
3. Use No. 6 AWG, 75°C minimum copper wire and 23 lb-in Torque force when connecng to terminal block.
4. The transformer has two input voltage opons, 208V and 240V. If the input is congured at 208V but the
actual input is 240V, then the output voltages will boost up 15%.
Input Conguraon
208V input applicaons: 208V input with a 120/240V output is the default for these systems. This means the in-
verter output is programmed to 208V and the output transformer primary tap is set to the 208V seng. These are
the default sengs for this system. Please refer to output Opon 1 in this secon.
240V input applicaons: If the input voltage is 240V, the following steps must be performed to obtain a 120/240V
output with a 240V input.
1. With no AC applied to the unit, change the transformer primary tap from 208V default seng to 240V
shown below. Access to tap sengs is gained by removing the side covers.
TX90-6K Input Taps TX90-10K Input Tap Board
2. The UPS inverter output voltage must also be programmed to 240V. Refer to the Changing the UPS Default
Sengs secon for more details. Opon 1 below provides a 120/240V output with a 240V input.
Move red
wire to here
when there is
a 240V input
Tap shown
on the 208V
seng
240V tap