Tescom DS300HT Series, User Manual

Page: 55 / 65

52
VI. PARALLEL OPERATING INSTRUCTIONS
After all the electrical connections of UPS have been made and while all the circuit breakers and switchtes
of the device are turned OFF (at “0” position);
1. Check the polarities of battery connections:
K1 : + V (nominal v360V, float charge v405V)
K2-K2 : 0 V (common terminal for ‘’+’’ and ‘’-‘’ battery groups)
K3 : - V (nominal voltage -360V, float charge voltage -405V)
2. Check 3-phase AC input and neutral connections (care should be taken fort he phase order).
ATTENTION!!!
TWO CABLES FOR EACH BATTERY GROUP SHOULD BE USED FOR EXTERNAL
BATTERY CONNECTION, AND THE COMMON POINT CONNECTION SHOULD BE MADE ON K2
TERM
İ NAL BLOCK!
WARNING ! : UPS should never be operated without neutral connection.
3.
Check the output load connections of UPS.
6.2.1 Starting UPSs from a completely shut down position:
1.
Turn ON S1 (AC Input) switch (switch to ‘’1’’ position)
2.
Turn ON S2 (Bypass) switch (switch to ‘’1’’ position)
3. Turn on S7 (On/Off) switch (to ‘’1’’ position). LCD panel activates, and ‘’INV RESET” or “PFC RESET’’
message appears on the display meaning that the rectifier starts to operate.
4. Turn ON S4 (AC Output) switch (switch to ‘’1’’ position)
5.
A few seconds later red bypass light (L2) on front panel turns off and gren inverter light (L6) turns on.
L6 light indicates that the UPS has started normal operation and generating uninterruptable power for
the critical load.
6.
Turn on S5 switch (to “1” position) to connect the battery group to UPS.
7. UPS is ready and in normal operation now.
6.2.2 Shutting down the UPS
After closing all the critical loads supplied by the UPSs output:
1. Turn off S4 (AC Output) switch (to ‘’0’’ position).
2. Turn off S7 (On/Off) switch (to ‘’0’’ position).
3. Turn off S5 (Battery) switch (to ‘’0’’ position).
4.
Turn off S2 (Bypass) switch (to ‘’0’’ position).
5.
Turn off S1 (AC Input) switch (to ‘’0’’ position).
After performing the above procedure, UPSs is completetely shut-down. In this case PFC rectifier and
inverter is not operating and the batteries are not being charged.
6.1 INTRODUCTION
6.2 OPERATING INSTRUCTIONS FOR PARALLEL CONNECTED UPSs.