Installation manual

UNIPOWER
Installation manual PQ Secure
36
5.8 Digital in- and outputs
They can be used to record external events to the PQ Secure system, or send signals to other
equipment in case of a sag/ swell or transient. These in-/ outputs are used in a similar way if the
recorder is used as a fault recorder.
The configuration of the digital in-/outputs is made via the PQ Online program. For more
information about this, please see the “PQ Secure User manual”. These functions are optional
modules.
5.8.1 Connection of digital inputs
By connecting a signal voltage to the UP-2210-R’s digital inputs from external equipment (e.g.
circuit breaker, harmonics filter), events can be registered and recordings can be trigged as a result of
change in the digital signal.
A change of state, trig, occurs when the signal exceeds the digital input HIGH value (see technical
manual) on the connected digital input. The UP-2210-R is activated on positive flanks, which means
that the trig takes place when the signal changes from a zero value (digital input LOW value, see
technical manual) to more than digital input HIGH value.If you have signals with normally high
values, active, you can via the configuration in PQ Online invert the signal to trig events when the
signal drops to zero
Figure 26
5.8.2 Connection of digital outputs
By connecting the UP-2210-R digital outputs to another external equipment or system, the UP-2210-
R can send a digital HIGH signal in the event of a disturbance (transient or sag/swell). Outputs are
activated when the measuring device detects a disturbance, and close the built-in relay during one
second.
Figure 27