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SMY133-SMY134-SMP133 Operating Manual
W
Models – I/O Connection
terminal
No.
signal
notes
41
RO1 …
RO1
digital output
- RO1 & RO2 : electromechanical relays, bipolar
- DI1 & DI2 inputs are unipolar
- common pole of the DI1 & DI2 is negative (-)
- inputs and outputs are insulated from instrument
internal circuitry
- RO1 & RO2 pair is insulated from DI1 & DI2 pair
recommended wire type : H05V-U (CY)
rec. minimum cross-section : 0.5 mm
2
maximum cross-section : 1.5 mm
2
42
RO2 …
RO2
digital output
43
CO …. RO1 & RO2 common
pole
44
DI1 …..
DI1
digital input
45
DI2 …..
DI2
digital input
46
CI ……. DI1 & DI2 common pole
AA
/
AT
Models – I/O Connection
terminal
No.
signal
notes
41, 42
D1A, D1B …
DO1
digital output or
DI1
digital input
- digital input/output is unipolar
- D1B of output „DO“ is positive (+)
- D1B of input „DI“ is negative (-)
- digital I/O is insulated from instrument
internal circuitry
recommended wire type : H05V-U (CY)
rec. minimum cross-section : 0.5 mm
2
maximum cross-section : 1.5 mm
2
43, 44
IΔ11, IΔ12 …
IΔ1
residual current input
or
…
AI1
20mA loop analog input
- for residual current IΔx1 is S1 (k)
- for 20mA loop IΔx1 is positive (+)
- inputs
are not
insulated from instrument
internal circuitry !!!
- the same signal (voltage level) or
potential-free signal can be connected to
the terminals IΔ12, IΔ22 or T- only !
recommended wire type : H05V-U (CY)
rec. minimum cross-section : 0.5 mm
2
maximum cross-section : 1.5 mm
2
45, 46
AA*)
IΔ21, IΔ22 …
IΔ2
residual current input
or
…
AI2
20mA loop analog input
45, 46
AT*)
T+, T- ……...
T
E
Pt100 temperature
sensor input
Note : AA*) … valid pro the „AA“ models only; AT*) … valid pro the „AT“ models only
6.1.1 Digital Output (DO, RO) Connection
The outputs are accomplished by a semiconductor switching device (DO) or an electromechanical
relay (RO). Maximum allowable voltage and load current according technical specifications must be
observed.
The signal polarity for the „V“-models must be kept according the table above. For the „RR/RI/II“ and
the „W“ models, it is free.
The outputs are insulated from instrument internal circuitry. For the „RR / RI / II“ models, they are
insulated mutually too. For other models, each output pair has common pole and the pairs are
insulated mutually.
41