Hardware configuration.
CNC 8070
7.
CENTRAL UNIT FOR CABINET (Q7-A PLATFORM).
Technical/electrical characteristics of the inputs and outputs.
·156·
(REF: 1911)
7.7 Technical/electrical characteristics of the inputs and outputs.
7.7.1 Digital inputs.
All digital inputs are galvanically isolated up to 500 V through opto-couplers. All digital inputs
meet the standard IEC61131-2 type 1 and type 3.
7.7.2 Digital outputs.
All digital outputs are galvanically isolated up to 500 V through opto-couplers. All the digital
outputs have the following characteristics:
7.7.3 Analog outputs.
Use shielded cables connecting their meshes to the corresponding shield pin. All the analog
outputs have the following characteristics:
Characteristic. Value.
Nominal voltage. +24 V DC (between +18 V DC and +30 V DC).
Activation level. From +11 V DC on and between 2.1 mA and 2.6
mA.
Deactivation level. Under +10 V DC or 1.5 mA.
Characteristic. Value.
Nominal voltage. +24 V DC (between +18 V DC and +30 V DC).
Output voltage. 2 V less than the supply voltage.
Maximum output current. 500 mA per output.
Minimum cycle on. Pins LO1 LO2: 25 µs.
Rest of pins: 75 µs.
For the PWM and synchronized switching, only pins LO1 or LO2 may be used.
Characteristic. Value.
Command voltage within range. ±10 V.
Resolution. 16 bits.
Minimum impedance of the connected device. 10 k.
Maximum cable length (unshielded). 75 mm.
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