Technical data
159
Control unit (RDCU/RMIO) connection data
Analog inputs
With Standard Control Program two programmable differential current inputs (0 mA /
4 mA ... 20 mA, R
in
= 100 ohm) and one programmable differential voltage input (-
10 V / 0 V / 2 V ... +10 V, R
in
= 200 kohm).
The analog inputs are galvanically isolated as a group.
Insulation test voltage 500 V AC, 1 min
Max. common mode voltage
between the channels
±15 V DC
Common mode rejection ratio >
60 dB at 50 Hz
Resolution 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.
Inaccuracy ±0.5% (Full Scale Range) at 25
°C (77 °F). Temperature coefficient: ±100 ppm/°C
(±56 ppm/°F), max.
Constant voltage output
Voltage +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.
Maximum load 10 mA
Applicable potentiometer 1 kohm to 10 kohm
Auxiliary power output
Voltage 24 V DC ± 10%, short circuit proof
Maximum current 250 mA (shared between this output and optional modules installed on the RMIO)
Analog outputs
Two programmable current outputs: 0 (4) to 20 mA, R
L
< 700 ohm
Resolution 0.1% (10 bit)
Inaccuracy ±1% (Full Scale Range) at 25
°C (77 °F). Temperature coefficient: ±200 ppm/°C
(±111 ppm/
°F) max.
Digital inputs
With Standard Control Program 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 Isolation and grounding diagram below).
Thermistor input: 5 mA, < 1.5 kohm “1” (normal temperature), > 4 kohm “0”
(high temperature), open circuit “0” (high 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.
Insulation test voltage 500 V AC, 1 min
Logical thresholds < 8 V DC “0”, > 12 V DC “1”
Input current DI1 to DI 5: 10 mA, DI6: 5 mA
Filtering time constant 1 ms
To Next Page
Loading...
