2
Precautions
Observe these precautions when installing the I/O module to reduce the risk of injury
or equipment damage:
Power for the I/O module is intended to be supplied by a NRTL listed power •
supply with a 24VDC output rated at 750 mA or more, a maximum short circuit
current rating of less than 8A, a maximum power rating of less than 100VA, and
marked Class 2 or Limited Power source (LPS).
Never connect the I/O module to a power source other than 24VDC connected •
to the 24VDC terminal block pins on the I/O module. Any other connection or
voltage creates a risk of fi re or shock and can damage the module components.
The shield ground connections of the RS-232 port, LAN port, PoE port, I/O port •
and Frame Ground terminal are internally connected. The system grounding is
designed to be at a zero ground potential; this zero ground potential extends
through the cable and to peripheral equipment (e.g., a vision system, PLC, etc.).
To ensure safe operating conditions, it is strongly recommended that all ground
connections are checked to ensure that a zero ground potential is met.
The I/O module must be grounded by attaching the module’s Frame Ground •
terminal to a frame ground.
Do not install the I/O module in areas directly exposed to environmental hazards •
such as excessive heat, dust, moisture, humidity, impact, vibration, corrosive
substances, fl ammable substances, or static electricity without a protective
enclosure.
Route all cables and wires away from high-voltage power sources to reduce •
the risk of damage or malfunction due to over-voltage, line noise, electrostatic
discharge (ESD), power surges, or other irregularities in the power supply.