Installation - Gamatronic POWER PLUS Technical Manual

3.9.3.3 Q: W
A. The individual UPS turn on/off feature is disabled.
3.9.3.4 Q: W
SYSTEM
A. A total number of modules represent the units with which the controller will communicate and monitor.
The redundancy number of modules shows how many units are functioning as a backup, without being
calculated in a global load level of the system. For example, if you have a 30KVA unit with a setting for 1
redundant module, when the output load will reach 20KVA the unit will show a full load condition. It will
still not switch to bypass, but will alarm you with overload if the output load will rise above 20KVA. For
the user this means that the unit does not have the redundancy anymore under this load. If the
redundant modules value is set to 0, then a 40KVA unit will function as a standard unit of 40KVA output
load maximum. It you set this parameter to 3, the same unit will have a load bar-graph of a 10k system
and will alert the customer with overload when there is more then 10k of load on the output.
3.9.3.5 Q: W
ENTRIES
A. The DC-I offset removal and the DC-I calibration should be performed only if the battery current
measurement is not correct. It is being used on new controllers only upon current sensors connection.
You might have do use these features if adding current sensors on a later stage. To perform it the unit
should work without a load and with batteries disconnected. Then the offset removal should be
preformed (only if the measurement current is not zero) and then the unit should be connected to some
load and batteries and operated in input power failure mode. Then the actual current is being measured
and corrected live in the controller using the calibration menu entry.
3.9.4

INSTALLATION

3.9.4.1 Q: D
A. Yes. The connection is on the ST/SW module. Unscrew two mounting screws on the front panel of the
ST/SW module and slightly pull it out. The EPO connection is on its top.
3.9.4.2 Q: W
NORMAL OPERATION
A. When the EPO function was activated, the unit stopped functioning and provided voltage to battery
breaker trip coil (option of the battery cabinet) to switch the batteries off as well. To restore normal
operation of the UPS system, it should be completely restarted.
3.9.4.3 Q: U
"S
YNC
?
THAT
A. Usually this means that the phase sequence on the ST/SW input (the bypass) is not correct. These
units get synchronized on the bypass and therefore check the phase sequence there. Swapping phase S
(L2) and T (L3) on the bypass input should correct the situation.
3.9.4.4 Q: W
SWITCH TO
A. The Inv/Byp button is a press and hold button for protection. It should be held for a number of seconds
until the alarm LED lights in green, and then released. There is the same button on the controller; there it
should be pressed twice to initiate a manual transfer.
42
I
HY SHOULD USE THE INDIVIDUAL
HY ARE THERE TWO SETTINGS FOR A NUMBER OF
?
DC-I
HAT IS THE OFFSET REMOVAL AND THE
?
EPO (E
OES THE UNIT HAVE
EPO
HEN THE IS DEACTIVATED
. W
HY IS THAT
PON THE INSTALLATION
" LED ST/SW
ON
I I
HEN PRESS THE NV
/
FROM BYPASS
Gamatronic Electronic Industries Ltd.
UPS
MODULE TURN ON
P
MERGENCY
,
THE UNIT STILL WON
?
, '
THE UNIT WON T SWITCH TO INVERTER AND THE
. E
MODULE IS IN RED
/B
YP BUTTON ON THE
. H I
OW DO DO THE MANUAL TRANSFER
/
OFF FEATURE
UPS
MODULES IN THE
DC-I
CALIBRATION MENU
O )
OWER FF CONNECTION
'
T RETURN TO
VERYTHING ELSE IS OK
ST/SW ,
MODULE IT DOESN
?
Power+ Technical Guide
?
?
. W
HY IS
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