Inputs/outputs

• The digital inputs and digital outputs are not electrically isolated. Incorrectly applied voltages can damage the digital inputs and digital outputs. Do not apply external voltages to the digital outputs.
• Cables outside the control cabinet must be shielded.
• When connecting the shielding, ensure equipotential bonding.
• The cable length must not exceed 30 m.
• Connect the digital inputs and digital outputs to the terminal strip X20/21.