24
3.
Using the UP-DOWN buttons on the front panel select “SETTINGS MENU” on LCD and press “ENTER”.
When you see “MODE” display, using “+” and “-“ buttons select either one of the following operation
modes which is suitable for your needs.
OPERATION MODES:
1. ON-LINE
2. PARALLEL
3. HOT-STANDBY
4. REDUNDANT
4.
After selecting one of the above modes, press “ENTER” until the beep sound stops.
5.
Turn off S1 (rectifier
input) and after a few seconds, turn it on again. Now the inverter is ready to
operate in the selected mode.
Perform the same procedure given above for both UPS’s (UPS1 and UPS2). Make sure that you select
the same mode for both UPS’s. If you select different modes, then a fault signal will be generated.
After selecting the operation modes for both devices then perform the following procedure:
6.
Turn on the Battery Circuit Breaker S5 (Optional) or insert the battery fuse, to connect the battery group
to the UPS for uninterrupted operation.
7.
Turn on S2 switches (static by-pass) of both UPS’s.
8.
When you restart UPS’s again, make sure that the CB1 and CB2 switches on the AC distribution panel
are in “OFF” position. Then turn on S4 (output) switches of both inverters.
ATTENTION :
VOLTAGE AT THE OUTPUT !!!
9.
Before going any further, measure the voltage (using an AC voltmeter) between the corresponding
phase outputs of UPS’s at the CB1 and CB2 contacts on the distribution panel. Only after you are sure
that there is no voltage difference between the corresponding contacts, turn on CB1 and CB2 on the AC
distribution panel.
Now the outputs of the UPS’s are connected in parallel and the parallel system is ready for use with AC
loads.
4.3.2 Procedure For Switching The UPS’s Into a Maintenance By-Pass From Normal Operation :
1)
Bring S6 (static by-pass) of either one of the UPS’s into “STATIC BYPASS” position.
2)
See that the red coloured by-pass leds on the front panels of both UPS’s are lit. (Static bypass
operation)
3)
Turn on S3 switches (maintenance bypass) of both UPS’s.
4)
Turn off S4 switches (AC output) of both UPS’s.
5)
Turn off S1 switches (rectifier input) of both UPS’s.
6)
Turn off S2 switches (static bypass) of both UPS’s.
7)
Turn off S5 (optional battery circuit breaker ) or remove battery fuses of both UPS’s.
Now, the UPS’s are completely turned off but the load is supplied by the AC-input via the Maintenance
By-Pass switch.
WARNING!!!
Inside the UPS’s the following points will be live as per a.c voltages:
* By-pass AC input mains terminals
* Maintenance by-pass switch
* UPS’s output terminals
Now your load is completely supplied by the maintenance by-pass supply and the
UPS’s is not operating.
WARNING!!!
During the maintenance or static by-pass the connected loads at the UPS
output can not being protected against the mains (by-pass source) failure.
Summary of Contents for T-300P Series
Page 2: ......
Page 36: ...32 Figure 5 5 a UPS Battery Group Connection With Battery Fuse To UPS Cabinet Battery Fuse...
Page 44: ...40...
Page 45: ...41 AGKK1831 11 2010...
