Erbe VIO 200 D - IIF (Instrument Interface)

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5 • Circuit Descriptions
Art.-Nr.: 80116-271 04.06
IIF (Instrument Interface)
The instrument interface assembly may be found up to four times in
the VIO system: twice in the electrosurgical unit and twice in the
APC
2 unit and VEM 2 unit respectively.
The IIF is used to provide the system with the key instrument informa-
tion via an electrically isolated serial interface:
Activation recognition The activation regognition checks whether one of the activation but-
tons (or ReMode button) has been pressed. It is designed to analyze
the different coding systems (diode coding, resistor coding connected
in parallel or series).
Receptacle recognition The receptacle recognition can recognize the type of receptacle via
the coding jumpers on the receptacle connectors.
Instrument recognition
(only relevant for MF and
APC receptacles)
The instrument recognition can identify instruments coded by resis-
tance and read instruments equipped with an electronic memory,
transmitting the relevant data to the system.
This data is converted to CAN using the "CPU + Sensors" and sent
to the control panel.
The safety relays used to switch the HF voltage to the connected in-
strument on activation are also located on the IIF assembly. The ac-
tual circuit state of the relay is signaled to the system to ensure that
defective relays or improper circuit states are detected.
There are three IIF versions:
• IIF ME: for monopolar instruments, equipped with a relay that can
switch the activated electrode to the instrument.
• IIF BE: for bipolar instruments and multifunctional instruments
designed for bipolar use only. Each equipped with one relay for
the activated electrode and patient plate.
• IIF MF (only relevant for VIO 300 D or in conjunction with a
VIO
300 D): equipped with 4 relays, which on multifunctional
instruments with several electrodes allows a very wide range of
configurations.
Receptacle type
Type
number
Coding
jumper
Pin
2 - Pin 6
Coding
jumper
Pin
1 - Pin 6
Bipolar 1 – X
Monopolar 2 X –
Multifunctional
(MF)
1
1. Only relevant for VIO 300 D or in conjunction with a VIO 300 D.
3 X X
APC 4 – –