Auxiliary Remote Bypass Contact); Insertion Of Power Modules And Battery Drawers - LEGRAND Trimod HE 10 Installation And Maintenance Manual

5. Installation
5.3.7 A.R.B.C. (Auxiliary Remote Bypass Contact)
The Trimod HE UPS makes it possible to enable forced bypass mode without any operation from the control panel but
simply through a normally open external contact.
The external bypass contact terminal is found on the terminal strip and is marked by the wording "A.R.B.C. " .
For the correct connection of the external contact, the following requirements must be adhered to:
- use a double-insulation cable of up to 10 meters in length;
- make sure that the switch used is galvanically isolated.
The electric characteristics of the auxiliary remote bypass contact are the following:
- voltage with open contacts: less than 100 V
- current with closed contacts: less than 100 mA
The figure below shows how the external bypass contact connection must be made:
CAUTION
It is not possible to use the auxiliary contact if the UPS is configured as a single phase input-three phase 120° output.
5.4

Insertion of power modules and battery drawers

Once all the electrical connections have been made, close the distribution drawer for the Trimod HE 10, 15, 20, 30 TT
models or screw up the lower panels for the Trimod HE 30 TM, 40 and 60 models.
It is then possible to move onto the insertion of the power modules and battery drawers into the UPS (depending on the
model) and in the external modular battery units (if there are any).
WARNING
The Trimod HE UPSs have electrical distribution sized for the nominal power of the equipment and must be used exclusively
with the power modules provided as shown in the "Mechanical characteristics" table in chapter 11 of this manual.
Do not use power modules that differ from those indicated and do not exchange the modules with each other and/or
replace them to vary the power of the UPS.
The model, the nominal power and the type of power module to be installed in the Trimod HE UPS are indicated in the
manuals and on the rating plate inside the door of the UPS.
The type and the nominal power of the power module are indicated on a rating plate at the back of the module.
Insert the power modules one at a time checking that they abut. Fix them to the frame with the two screws provided with
each module. Use SHC M4x20 screws (hex socket head). The two fixing screws also act as the module's earth connection
and must both be fixed for safety purposes.
If one or more power modules are not installed, the free slots must be covered by installing in each of them the plastic
mask of the kit 3 108 66. The mask must be fixed with two SHC M4x20 screws.
Insert the battery drawers one at a time checking that they abut. For each drawer, tighten all the fixing screws provided.
Use SHC M4x20 screws (hex socket head).
In the case of the Trimod HE 30 TT do not insert abutted the drawers and do not screw them up.
If one or more battery drawers are not installed, the free slots must be covered by installing in each of them the plastic
mask of the kit 3 108 65. The mask must be fixed with two SHC M4x20 screws.
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