iRZ ion fm, User Manual

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●
maximal value of pulse counter: 65535. (after reaching that value, the calculation starts over);
●
maximum counter error: 1%.
NOTE!
Connecting input to the frequency generator with open connector requires enabling pull-up connec-
tion to this input. Zero the counter out only when it is necessary to reset previously accumulated values.
Analog input type.
iON FM terminal supports feeding analog signal of steady voltage that will be measured and averaged out
for further transmission to a server.
Electrical parameters of analog input:
●
maximum permissible voltage of input signal: 30 (V);
●
recommended minimal voltage of the impulse signal: 0.5 (V);
●
input signal level measurement is only taken when the voltage is positive in relation to negative
power supply; negative voltage is ignored;
●
maximum voltage error: 1% (300 mV).
NOTE! Disconnect pull-up resistors when configuring input to function as analog.
Logic input type.
Logic input type is used for feeding signal with steady voltage level. The voltage will be measured and in-
terpreted as logic 1 or logic 0 for further transmission of the interpreted logic value to web-monitoring server.
The measured may be read using corresponding control commands.
Electrical parameters of logic input:
●
minimal level of logic 0: 500 (mV);
●
maximal level of logic 1: 30000 (mV);
●
cosntant component of voltage on input with enabled pull-up resistors:
≈
4 (V);
●
input signal’s logical level is only determined only at positive voltage, negative is ignored;
●
negative is ignored;
●
maximum voltage error: 1% (300 mV).
Control outputs.
Control outputs OUT5 and OUT 6 are intended for controlling external devices connected via Microfit 10
connector. Output status is configured using the corresponding commands. These two outputs are fitted with
open collector (OC) and commute (close) any connected external devices (e.g. a relay) to negative of power
supply (return wire, mass).
Electrical parameters of OUT5 and OUT 6 outputs:
●
maximal value of commutation current (load current): 0.5 (A);
●
maximal voltage on collector at each output: 30 (V);
●
there is no need to connect a fuse diode when commutating inductive load; there is a built-in one.