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RMIO board specifications
Analogue inputs
Isolation test voltage
Max. common mode voltage
between the channels
Common mode rejection
ratio
Resolution
Inaccuracy
Constant voltage output
Voltage
Maximum load
Applicable potentiometer
Auxiliary power output
Voltage
Maximum current
Analogue outputs
Resolution
Inaccuracy
Digital inputs
Isolation test voltage
Logical thresholds
Input current
Filtering time constant
Two programmable differential current inputs (0 mA / 4 mA ... 20 mA,
= 100 ohm) and one programmable differential voltage input
(-10 V / 0 V / 2 V ... +10 V,
The analogue inputs are galvanically isolated as a group.
500 V AC, 1 min
±15 V DC
> 60 dB at 50 Hz
0.025% (12-bit) for the -10 V ... +10 V input. 0.5% (11-bit) for the 0 ... +10 V
and
0 ... 20 mA inputs.
± 0.5% (Full Scale Range) at 25 °C (77 °F). Temperature coefficient:
± 100 ppm/°C (± 56 ppm/°F), max.
+10 V DC, 0, -10 V DC ± 0.5% (Full Scale Range) at 25 °C (77 °F).
Temperature coefficient: ± 100 ppm/°C (± 56 ppm/°F) max.
10 mA
1 kohm to 10 kohm
24 V DC ± 10%, short circuit proof
250 mA (shared between this output and optional modules installed on
the RMIO)
Two programmable current outputs: 0 (4) to 20 mA,
0.1% (10-bit)
± 1% (Full Scale Range) at 25 °C (77 °F). Temperature coefficient:
± 200 ppm/°C (± 111 ppm/°F) max.
Six programmable digital inputs (common ground:
24 V DC, -15% to +20%) and a start interlock input. Group isolated, can
be divided in two isolated groups (see
below).
Thermistor input: 5 mA, < 1.5 kohm
4 kohm
"0" (high temperature), open circuit
temperature).
Internal supply for digital inputs (+24 V DC): short-circuit proof. An
external 24 V DC supply can be used instead of the internal supply.
500 V AC, 1 min
< 8 V DC
"0", > 12 V DC
DI1 to DI 5: 10 mA, DI6: 5 mA
1 ms
Motor control and I/O board (RMIO) 95
R
> 200 kohm).
in
Isolation and grounding diagram
"1" (normal temperature), >
"1"
R
in
R
< 700 ohm
L
"0" (high
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