765-4102/0100-0000
Planning
36
Product manual | Version: 2.1.0
8PORT IOL-B FLD PN DC 24V 2.0A
1. The currents I
X0i_2L
for powering the connected products, sensors and actuators (for
each port i)
2. The current I
X32_2L
that flows through the supply voltage output PWR OUT (X32) to
other connected products
The following rule applies to both supply cables:
Rule 2: Current feedthrough limiting
The supply voltage for the products of a supply cable that are connected to the output
supply connection PWR OUT is passed on through the product from the input supply con-
nection. The maximum permissible current feedthrough for the respective supply cable is
limited by the current load capacity of the plug on the input supply connection and the
PCB. The latter is max. 16 A, where the total current in the supply cable must not exceed
the current load capacity.
Note the following:
1. When switching on digital outputs, it may be necessary to factor the current that flows
through these outputs into the current feedthrough accordingly.
2. In the worst case, the permissible current feedthrough may reach a value of
0 A
!
3. The passthrough connection between the supply voltage input and output has
no
protective device
against overcurrent!
Therefore, the safety measures given in section
8
(fuse protection,
regulated power supply with current limitation and additional monitoring of the measured
values of the sensors) are necessary.
Rule 3: Ports X01, X02 etc.
The following rules apply to each port of the product individually:
Rule 3: Upper limits for current on the individual pins of the ports
The following upper limits apply to the currents on the pins of the individual ports:
Table 28: Upper Limits for Current on the Individual Pins of the Connections
Pin
Normal Operation
Overload Operation
1
4 A
4 A
2
2 A
2.4 A
3
4 A
4 A
4
2 A
2.4 A
The device is designed in such a way that it can be used in overload operation without
time limit. The following applies to all pins:
If the maximum load capacity (upper limit of overload operation) of the pin is exceeded,
there is a risk of destruction of or damage to the pluggable connector or PCB of the de-
vice.
CAUTION
Note significance of pin 3:
Note that the sum of the currents of pins 1, 2 and 4 flows to pin 3.
