6 F 3 H 1 0 0 1
Table 6.1 Control Functions
No. | Device | Name / Function |
|
|
|
c | 52R | Main circuit AC input circuit breaker |
When the AC input is normal, power is | ||
|
| supplied to the UPS through this circuit |
|
| breaker. |
d | 72B | Main circuit DC input circuit breaker |
When AC input has been cut off, power is | ||
|
| supplied from the battery to the UPS |
|
| through this circuit breaker. |
| 52C | Bypass AC circuit breaker |
e | When bypass power is supplied, power is | |
|
| supplied to the load through this circuit |
|
| breaker. |
f | 52M | Maintenance bypass AC circuit breaker |
When bypass power is supplied for UPS | ||
|
| maintenance, power is supplied to the |
|
| load through this circuit breaker. |
g | 52L | AC output circuit breaker |
While UPS power or bypass power is | ||
|
| supplied, power is supplied to the load |
|
| through this circuit breaker. |
h | 8A | Control power source switch |
When AC input is normal, pressing this | ||
|
| switch supplies power to the control power |
|
| source. |
i | 6CH | Precharge circuit button |
Pressing this button supplies power to the | ||
|
| circuit that precharges the DC electrolytic |
|
| capacitor before power is supplied to |
|
| circuit breaker 52R. |
|
|
|
Normal Status During Operation
ON
ON
ON
OFF
ON
ON
ON
Remarks
When the circuit breaker is tripped in manual mode, reset it by grasping the handle and pulling it down or to the right.
Certain systems are also provided with the switch 8D.
6.2 Circuit Configuration
UPS | 52R |
AC INPUT | ~ |
|
BYPASS | 52C |
AC INPUT |
|
~
72B
52L
AC OUTPUT
BATTERY
52M
Figure 6.2 Standard Circuit Configuration
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