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01/02 AWB8230-1415GB
Programmable digital outputs
11 to 15
113
Instant stop (IP) and undervoltage (UV)
The UV (undervoltage) and IP (instant stop) signals can be assi-
gned to one of the digital outputs 11 to 15.
The UV output is activated when the internal DC link voltage falls
below a specified limit value. The CPU monitors the DC link
voltage, and as soon as it falls below a particular value, the output
voltage is switched off to prevent the device from being damaged.
This is important since, when the drive requires full power and the
DC link voltage falls, the current rises, which can lead to an unex-
pected disconnection due to overload or overcurrent.
The IP output is activated when the supply voltage fails or an over-
voltage occurs. With this function, the input voltage is monitored,
allowing a disconnection to take place more quickly.
Voltage monitoring does not work if a phase failure occurs at the
main power supply (L1, L2, L3) and the control electronics are
supplied externally through the R0-T0 terminals.
X
Program one of the digital outputs 11 to 15 as IP by entering
the value 08 in the corresponding PNU (C021 to C025) or under
PNU C026 for signalling relay contacts K11-K12.
X
Program one of the digital outputs 11 to 15 as UV by entering
the value 09 in the corresponding PNU (C021 to C025) or under
PNU C026 for signalling relay contacts K11-K12.
By default, IP is assigned to digital output 15.
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