WAGO TEchDocs 765-4501/0100-0000, Manual

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765-4501/0100-0000 Planning
Product manual | Version: 1.1.0 57
8PORT IOL-A FLD EI DC 24V 2.0A
Rules
In addition to the consumption of the connected devices, rules for the maximum load ca-
pacity must be followed. Comply with the following rules to prevent damage to the prod-
uct:
• Supply voltage input X31 (PWR IN) and supply voltage input X32 (PWR OUT)
– Rule 1: Take maximum load capacity of each connection contact (pin) into ac-
count
– Rule 2: Take 1L and 2L current feedthrough into account
• Ports X01, X02 etc.
– Rule 3: The current load of pin 3 must not exceed 4 A, since the sum of the pin 1,
2 and 4 currents flows back through pin 3.
Rules 1 and 2: Supply Input X31 and Output X32
The currents for the electrically isolated supply cables 1 and 2 should be considered sep-
arately. The two supply cables 1 are defined as follows:
• Supply cable 1 corresponds to the current flow path that starts from pin 1 (signal 1L+)
of supply voltage connection PWR IN (X31) and passes through the device to pin 3
(signal 1L-) of PWR IN. This is shown in blue in the current flow figure under Connec-
tion > Connect Sensors/Actuators.
• Supply cable 2 corresponds to the current flow path that starts from pin 4 (signal 2L+)
of supply voltage connection PWR IN (X31) and passes through the device to pin 2
(signal 2L-) of PWR IN. This is shown in red in the current flow figure under Connec-
tion > Connect Sensors/Actuators.
The following rule applies to both supply cables:
Rule 1: Upper limit of 16 A for current in the entire supply cable (1L or 2L)
An upper limit of 16 A applies to the total current in a supply cable. If this upper limit is ex-
ceeded, there is a risk of destruction of or damage to the device if the safety measures
are not taken.
Also observe the derating, i.e. the maximum current as a function of the surrounding air
temperature. In this regard, see section
8
Derating [
}
25] .
The following partial currents contribute to the total current in supply cable 1:
1. The I
logic
current for powering the device’s internal electronics (the device is powered
via supply cable 1)
2. The I
X0i_1L
currents for powering the connected devices, sensors and actuators (for
each port i)
3. The I
X32_1L
current that flows through the supply voltage output PWR OUT (X32) to
other connected devices (current feedthrough)
The following partial currents contribute to the total current in supply cable 2:
1. The I
X0i_2L
currents for powering the connected devices, sensors and actuators (for
each port i)
2. The I
X32_2L
current that flows through the supply voltage output PWR OUT (X32) to
other connected devices
The following rule applies to both supply cables:
Rule 2: Current feedthrough limiting