LEGRAND Trimod HE 10, Installation And Maintenance Manual

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Trimod HE®
Installa
tion and main
tenanc
e manual
37
6. Configuration and Start-up
DANGER
All the configurations and start-up operations may only be done by a SKILLED TECHNICIAN (paragraph 2.2.1)
6.1 Introduction
This chapter contains all the information necessary for a correct configuration of the Trimod HE UPS and for its subsequent
startup.
The factory configuration provides for THREE PHASE INPUT and 120° THREE PHASE OUTPUT.
6.2 Input configuration
The Trimod HE UPS automatically recognises the input voltage, frequency and number of phases if the electrical
connection on the terminal strip is modified.
CAUTION
Make sure the neutral wire is always connected.
6.3 Output configuration
The Trimod HE UPS does not automatically recognise the electrical configuration on the output terminal strip. For this
reason it is always necessary to select the type of output voltage from the control panel according to the applied load.
The default configuration for the Trimod HE UPS is 120° three phase 400 Vac.
The UPS can also be configured to obtain a unique single output phase 230 Vac in the 10 kVA, 15 kVA, 20 kVA and 30 kVA
TM models.
If the UPS is configured with three phase output, it is possible to select the management of the three phase as follows :
- THREE PHASES 120°: this is the default setup and is usually used if three phase loads are applied on the UPS output (e.g.
three phase electrical motors) or if there are both three phase and single phase loads powered by the UPS. In this case
the UPS manages the three output phases protecting the three phase load. For example, if an excessive load is applied
to one of the three output lines, the automatic bypass switches all three output lines.
- THREE SINGLE PHASE OUTPUTS: this setup is necessary if three single phase lines have been created with the common
neutral on the UPS output. In this case, the UPS manages the three outputs completely independently of each other. For
example, if an excessive load is applied to one of the three output lines, the bypass intervenes only on the overloaded
line while the power supply continues to be guaranteed on the other two by the UPS. If the input is single phase, the
three lines are not in phase but rather with a phase shift of 120° and therefore cannot be connected in parallel. If the
input is three phase, the outputs are in phase and the possibility of using the bypass is guaranteed.
For the correct selection of the output configuration, follow the instructions given in paragraph 6.5.
6.4 Pre-start-up checks
Before powering the equipment, carry out the following checks:
1. Check that the mains input switch S3 of the UPS is open (OFF position).
2. Check that the battery fuse breakers of the UPS FB+ and FB- (if the model includes them) and those inside the Trimod
HE BATTERY (if present) are open (OFF position).
In the case of Trimod HE 30TT in which the fuse breakers are installed in the terminal strip, check that all the battery
drawers are not installed abutting and thus the string of batteries is interrupted.
3. Check that the maintenance bypass switch S1 and the output switch S2 of the UPS are open (OFF position)
4. Check that the wiring on input and output has been done and that all the connections have been tightened up properly.
5. Check the correct phase sequence of the input line.
6. Check that the parameters (voltage and frequency) of the input line are compatible with those shown on the UPS
rating plate.
7. Check that all the power modules are inserted properly and that the fixing screws of the power modules are present
and screwed up to abut the relative slots (use SHC M4x20 screws with hex socket head )
8. Check that all the battery drawers, if present, are inserted properly and that the fixing screws of the power modules are
present and all the fixing screws are screwed up to abut (use SHC M4x20 screws with hex socket head )
In the case of the Trimod HE 30 TT, push the battery drawers one at a time to abut and screw them up with the fixing
screws.