Phoenix Contact QUINT4-PS/3AC/24DC/20 handleiding

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Output voltage

The threshold value for the output voltage can be parameterized in the range from 25% to

135 % of the output voltage currently set. Example 1 shows the calculation of the threshold

value.

Example 1 The nominal output voltage of your power supply is 24 V. In order to compensate for the volt-

age drop over the cables, set the power supply output voltage to 25 V. To monitor the out-

put voltage, select a relative threshold value of 90 %. The absolute value is calculated as

follows:

Set output voltage:

Relative threshold value:

Absolute threshold value:

Output current and output power

The setting ranges for the output current and output power threshold values depend on the

device (see Table 8-1 “Setting range for output current and output power signaling”). The

static Boost and dynamic Boost also influence the settings. You can set the static and dy-

namic Boost in the “Characteristics” category (see Section 7.1.1, “Static Boost” and

Section 7.1.2, “Dynamic Boost”).

The absolute threshold value for output current and output power is calculated automatically

and displayed. Examples 2 and 3 show the calculation of the threshold value.

Table 8-1 Setting range for output current and output power signaling

Dynamic Boost acti-

vated

Dynamic Boost deacti-

vated

Devices with nominal power up to and including 240 W

Static Boost activated 5 % to 200 % 5 % to 125 %

Static Boost deactivated 5 % to 100 %

Devices with nominal power greater than 240 W

Static Boost activated 5 % to 150 % 5 % to 125 %

Static Boost deactivated 5 % to 100 %

Set

= 25 V

Th, rel

= 90 %

Th, abs

= U

Th, rel

•

Set

= 22.5 V

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