CIRCUTOR QNA500 series - Manual (Page 10)

POWER QUALITY ANALYZER QNA500 8IO
QNA500 8IO Instruction manual 10 / 111
4.- INTERCONNECTING MODULES
The MULTIFIT unit system can be used to interconnect various modules. Modules do not have to be
connected in a specific order. In any case, CIRCUTOR supplies two factory configurations:
1. M-BASE + M-QNA500
2. M-BASE + M-QNA500 + M-8IO
The MULTIFIT internal communications system allows each module to operate independently (Master
mode), so that each module can take its own decisions, regardless of the type of connection.
Modules are interconnected with a communications connector (26 PINS) located on the side of each
module. Once all modules have been installed, it is advisable to close the side connector of the last
module with the cover supplied with the equipment. The M-BASE can only power a specific number of
modules, due to the consumption of each one. The maximum capacity of each M-BASE module can be
used to power 2 QNA500 systems and 2 M-8IO or 4 M-8IO systems.
NOTE: do not connect more modules than those stated in the specifications. Otherwise,
the equipment's operation could be severely affected.
5.- INSTALLATION
This manual contains information and warnings that the user must observe in order to guarantee the
safe operation of the equipment, so that it is in perfect working order and respects the safety
regulations.
If the equipment is used in a manner other than that specified by the manufacturer, its
protection elements may be compromised.
5.1.- VERIFICATION UPON RECEPTION
Check the following points when you receive the instrument:
• Make sure that the equipment is as specified on your order.
• Make sure that it has not been damaged during transport.
• Make sure that there is a quick guide and/or adequate manuals with the equipment.
• Make sure that the following accessories have been supplied with the equipment:
o RS-232 Communications cable
o Ni-MH Battery
o DIN RAIL Fixing guides (1 guide + 1 fixing element per module)
o REAR PANEL fixing brackets
o Power supply and measurement connection terminal strip