WAGO 750-527 Manual page 14

14 Important Notes
Do not reverse the polarity of connection lines!
Avoid reverse polarity of data and power supply lines, as this may damage the
devices involved.
Avoid electrostatic discharge!
The devices are equipped with electronic components that may be destroyed by
electrostatic discharge when touched. Please observe the safety precautions
against electrostatic discharge per DIN EN 61340-5-1/-3. When handling the
devices, please ensure that environmental factors (personnel, work space and
packaging) are properly grounded.
Semiconductor relay outputs require suitable fuses!
The semiconductor relay outputs are not continuously short-circuit-protected and
must not be overloaded. To prevent destruction and avoid additional hazards and
damage to your system, each semiconductor relay output must be equipped with
adequate overcurrent protection.
This protection can be ensured by, e.g., adequate electronic fuses or safety
fuses.
When selecting overcurrent protection, pay attention to the current limit values
specified for the semiconductor relay outputs and the load-carrying capabilities of
the connected circuits!
Restrict induction voltages!
Residual inductive currents when inductive loads are switched off can damage
the electronics in I/O modules. Use a suitable protective circuit to limit induction
voltage!
Suitable options include:
- a recovery diode (DC voltage) or
- a varistor in parallel to a load (AC voltage).
Do not exceed maximum switching frequency!
Exceeding maximum switching frequency can destroy the I/O module.
Manual
Version 1.0.0
WAGO-I/O-SYSTEM 750
750-527 4DO 30V AC/DC 2.0A SSR