Requirements On The Power Supply; Additional Measures; Power Supply Examples - WAGO 765-4102/0100-0000 User Manual

Planning
Current
Reverse current to pin 3 (ground)
(rule 3)

6.2.2 Requirements on the Power Supply

Power Source
Note
PELV or SELV power source required
Only operate the product with 24 VDC PELV (Protective Extra Low Voltage) or SELV
(Safety Extra Low Voltage). Failure to comply may result in electric shock.
To power the products, always use two isolated supply cables/power supplies for 1L and
2L. If two separate power supplies are used for this purpose, ensure central grounding
(functional ground). This is required if functionally safe switch-off of 2L is intended.
Fuse Protection
The relevant current path must be protected with an external fuse (16 A).
Note
Damage to product
The maximum supply current must not be exceeded. Otherwise, there is a risk of damage
to the PCB of the product and the pluggable connector.

6.2.3 Additional Measures

The values of all currents on all pins of all connection (except for pin 3 = ground pin) and
the total currents of the two supply cables are measured by the IO-Link chip used in the
765 Series products and thus can be recorded by a monitoring application. These values
can be accessed via the OPC UA server, for example.
On the basis of these measured values, a monitoring application with integrated current
management can be implemented. This can regularly verify that all monitoring functions
are satisfied on the basis of the measured current values and also monitor the tempera-
tures and voltages on the connections.

6.2.4 Power Supply Examples

The product can be powered alone with its operating voltage or form part of a power sup-
ply group along with multiple products.
Power supply groups of multiple products can be formed in two ways:
1. Via the PWR OUT connection:
One or more additional products can be powered via the PWR OUT (X32) power sup-
ply output and then form a power supply group together with the product
38 Product manual | Version: 2.1.0
8PORT IOL-B FLD PN DC 24V 2.0A
Supply Cable 1
I ≤ 4 A
X0i_pin3_1L
765-4102/0100-0000
Table 31: Rules for Supply Cables 1 and 2
Supply Cable 2
I ≤ 4 A
X0i_pin5_2L