Riello UPS MASTER HE - Page 57

0MNMHEM30RUENUB 00 pag. 57 / 57
Standby ON
Forces the selection of the UPS
Standby-ON operation.
This is done with the contact kept
closed; if reopened, the command is
cancelled.
To be used when the load may
support mains interference or
frequency variations and it is thus
preferred to improve system
efficiency. The load is powered if
there is a mains power failure.
Battery test
Starts the automatic battery test when
the UPS is in normal operation.
Any automatic battery test underway is
terminated immediately.
This is achieved by switching the
contact from open to closed.
Checks state of the battery.
Battery test
(with rectifier on)
Starts the manual battery test that continues
until a block command is received or until
the full discharge of the battery.
Terminates any manual battery test
underway.
This is achieved by switching the contact
from open to closed.
Checks state of the battery.
N.B.: During this test the rectifier
remains on with output voltage low in
order to allow the supply of current
by the battery and to prevent inverter
shutdown after battery discharge.
Manual battery charging
Starts the “single first time recharge”.
Terminates the first time charging
underway.
This is achieved by switching the contact
from open to closed.
Activates manual remote battery
charging
Activation of block on Bypass
Bypass command by means of blocking the
inverter as a result of switching onto the
bypass line.
N.B.: The command is only executed if the
bypass line is present with correct values.
This is achieved by switching the contact
from open to closed.
Load unpowered in the event of a
mains outage.
To be used for non-critical loads,
the battery does not discharge
during a mains power failure.
Inhibition of block on bypass
Resets the bypass command.
This is achieved by switching the contact
from open to closed.
Cancels the previous action and
disables the inverter block.
Inverter ON/OFF
UNCONDITIONAL inverter block
command (the command is executed
even if there is no bypass line).
The UPS only switches onto bypass if
the bypass line is present (otherwise
the load remains unpowered).
This is done with the contact kept
closed; if reopened, the command is
cancelled.
Load unpowered in the event of a
mains outage.
To be used for non-critical loads,
the battery does not discharge
during a mains power failure.
Rectifier off
UNCONDITIONAL rectifier block
command.
This is done with the contact kept
closed; if reopened, the command is
cancelled.
Shuts down the rectifier and
discharges the battery.