
HIMOD_HP_MANUAL_vers0116_E
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MANUAL BYPASS MODE
CAUTION: The SWMB disconnection switch installed on the HIMOD HP UPS Cabinet is not a maintenance
bypass switch, therefore, there are dangerous voltages within the Cabinet, even if this disconnection switch
is closed.
CAUTION: Contact a service centre should any malfunctions be detected. Maintenance can be carried out
only by skilled staff authorised by the manufacturer.
CAUTION: dangerous voltages can be present inside the device, even if the input, bypass, output and
battery switches are open.
The removal of the closure panels of the HIMOD HP UPS Cabined by non-skilled personnel is a source of
danger and may cause damage to the operator, to the equipment and to the consumers connected to it.
Order of the operations to be carried out for configuring the HIMOD HP UPS Cabinet in the MANUAL BYPASS MODE status
without any cut-off of the power to the load.
Caution: if the system is in battery operation, the Manual Bypass insertion may cut off power to the load.
Close the Manual Bypass SWMB disconnection switch located behind the door: in this way the input is in short-circuit
with the output.
Under this operation mode, any disturbance or blackout on the power supply line will impact on the supplied equipment
(the Modular UPS Cabinet is no longer active and the load is directly connected to the network).
The display will show the completed switch to Manual Bypass.
Order of the operations to be carried out for restarting the HIMOD HP UPS Cabinet and closing the MANUAL BYPASS MODE
without cutting off the power to the load (execute only if no anomalies or malfunctions are present):
1. Ensure that the Bypass Module (see the “Modules and Units” chapter) is present and switched on.
2. Open the SWMB disconnection switch by rotating the knob anti-clockwise.
3. The Bypass Module activates and then the whole HIMOD HP UPS Cabinet is switched on.
HIMOD HP POWER CABINET
The HIMOD HP Power Cabinet may contain up to 7 Power Modules (PM) and one Bypass Module (BM).
PMs are UPSs connected in parallel in order to increase reliability in the supply of power to the load and the power available on
output (ref. to the "Modules and Units" chapters)
The load that can be applied to a Modular UPS Cabinet can be higher than the load that can be sustained by each unit thanks to
automatic power-sharing. Increased reliability is only achieved on condition that the total system power, with one or more PMs
deactivated, remains higher than the demand. Said condition is always achieved by adding at least one redundant PM to the
minimum number of elements required to power the load, so that after the automatic exclusion of a faulty PM, the power supply
can continue in a correct manner.
Each PM is equipped with a smart control unit, connected through a data bus with the other PMs of the system, achieving a high
reliability distributed logic.
Note: any redundancy of the PMs may be set-up during configuration, but, in the case of a HIMOD HP Power Cabinet equipped
of all the 7 PMs, one of them is marked in any case as redundant.
The Bypass Module (BM) operates as the central AUTOMATIC BYPASS for the whole HIMOD HP Power Cabinet (ref. to chapter
“Modules and Units”).
In order to further increase the power of the system, multiple HIMOD HP Power Cabinets can be connected in parallel, up to 4.
The maximum configuration will be therefore 28 PMs connected in parallel, of which at least 4 are redundant.
CAUTION: the HIMOD HP System has only a single battery supply, therefore all the HIMOD HP Power Cabinets must
share their batteries.