Keying Scheme ~ Modules And Power Shelves - Eltek flatpack2 User Manual

Keying Scheme ~ Modules and Power Shelves

Eltek rectifier and converter modules are available in a vast range of output voltages,
and all the rectifiers may be physically inserted in the same rectifier power shelf and all
converters in the same converter power shelf.
A keying scheme is designed to achieve that a specific module is only plugged into a
suitable power shelf, thus avoiding damaging the module and the power system.
The keying scheme is based in inserting one or several keys (or small pieces of
plastic) in the slots (position 1-6) located both on the module's chassis and on the power
shelf's chassis.
Module's chassis
Flatpack2
module
Figure 6 Keying scheme for Flatpack2 modules and power shelves (keys are black)
When a module and a power shelf have a key inserted in the same position, the module
will not plug into the shelf.
A slot with inserted key may be indicated with "1", and an empty slot with "0".
For example, a power shelf suitable for 24V Flatpack2 solar chargers will be shipped from
factory keyed as <110 001>. Then, only modules keyed as <001 110> can be plugged
into the shelf, e.g. the Flatpack2 24/1500 HE Solar Chargers.
In general, modules and power shelves for industrial applications are always keyed at
factory. When required, Eltek will also ship keyed modules and power shelves for telecom
applications.
NOTICE:
A keyed power shelf will ONLY allow modules keyed for the specific shelf to be plugged in the shelf.
A non-keyed power shelf will allow both keyed and non-keyed modules to be plugged in the shelf.
CAUTION:
!
Never install Flatpack2 modules in power shelves with different output voltage than the module's. The module's
output voltage and the power system's output voltage must always be the same.
Device
Hazard
User's Guide Flatpack2 Rectifier & Converter Modules,
Module's Key
3 Installation of Flatpack2 Modules
Shelf's chassis
Flatpack2
power shelve
350002.013, 8v1-2013-08
Shelf's Key
19