Tripp Lite SU40KX Owner's Manual for 3-Phase UPS 932688 - Page 32

Switching from Manual Bypass to Normal Mode Parallel UPS

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9 - Start-Up, Shutdown and Bypass (continued) 1 9-11 Switching from Manual Bypass to Normal Mode (Parallel UPS) 2 •1 If the UPS systems have external battery cabinets connected, switch off the external battery cabinet circuit breaker switch A of each battery pack. On the SU20KX or SU40KX, turn OFF the A battery breaker on the back of the UPS. 3 1 •2 Switch on the bypass input circuit breaker switch Q2 and the 4 output circuit breaker switch Q4 of each UPS system. Q4 5 •3 Confirm that both UPS systems are shut down, then switch off the manual bypass input circuit breaker switch Q3 of each UPS 2 system. The LCD screen will read "ON AUTO BYPASS". 6 •4 Switch on the main input circuit breaker switch Q1 of each UPS system. •5 Press the ON button A of the first UPS systems for 3 seconds (until you hear a beep), then release the button. Press the ON 7 button for the second UPS system for 3 seconds (until you hear a beep), then release the button. When the inverter of each UPS system is operating normally, they will switch to online (normal) mode at the same time. 3 Output Manual Bypass Q3 Output Manual Bypass 8 Q1 9 Output Manual Bypass Main 4 Bypass Input Input 5 10 Q2 Bypass Input Bypass Input Main Input Main Input A 11 12 13 14 32

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9
1
2
3
5
4
A
Output
Manual
Bypass
Bypass
Input
Main
Input
Q2
Q4
Output
Output
Manual
Bypass
Manual
Bypass
Bypass
Input
Bypass
Input
Main
Input
Main
Input
Q3
Q1
A
32
9 – Start-Up, Shutdown and Bypass
(continued)
9-11 Switching from Manual Bypass to Normal Mode (Parallel UPS)
If the UPS systems have external battery cabinets connected,
•
switch off the external battery cabinet circuit breaker switch
A
of each battery pack. On the SU20KX or SU40KX, turn OFF the
battery breaker on the back of the UPS.
Switch on the bypass input circuit breaker switch
Q2
and the
output circuit breaker switch
Q4
of each UPS system.
Confirm that both UPS systems are shut down, then switch off
the manual bypass input circuit breaker switch
Q3
of each UPS
system. The LCD screen will read “ON AUTO BYPASS”.
Switch on the main input circuit breaker switch
Q1
of each UPS
system.
Press the ON button
A
of the first UPS systems for 3 seconds
(until you hear a beep), then release the button. Press the ON
button for the second UPS system for 3 seconds (until you hear
a beep), then release the button. When the inverter of each UPS
system is operating normally, they will switch to online (normal)
mode at the same time.
1
2
3
4
5