9 Visualization
Maschinenfabrik Reinhausen GmbH 2020
173
6385142/08 EN
ETOS
®
ED
Q switching direction (optional)
You can use this parameter to set the switching direction for reactive power
regulation. You can use this to adjust the behavior of the device based on
how your on-load tap-changer and motor-drive unit are configured. You can
select the following options:
Setting
Meaning
Standard
The device issues a signal via the
RAISE
output to increase
the reactive power.
The device issues a signal via the
LOWER
output to reduce
the reactive power.
Swapped
The device issues a signal via the
LOWER
output to increase
the reactive power.
The device issues a signal via the
RAISE
output to reduce the
reactive power.
Table 43: Behavior
Switching direction monitoring
You can use this parameter to set the switching direction monitoring. This
function monitors whether a tap-change operation in the wrong direction has
been undertaken (e.g. due to a wiring mistake).
If a tap-change operation in the wrong direction is detected, the device is-
sues the event message
Switching direction monitoring
and blocks auto-
matic regulation. Automatic regulation is blocked until you acknowledge
[
Section 9.33.1, Page 311] the event.
Switching direction monitoring is not active if you control the motor-drive unit
with a continuous pulse [
9.14 Drive overview
The overview display of the motor-drive unit shows you the following infor-
mation:
▪ Current tap position, including drag hands
▪ Display of tap-change indicator sections (SSE, optional)
▪ Operations counter
▪ Status messages
– Operating mode
– Switching blocking (optional)
– Motor protective switch
– Control cabinet door open/closed
▪ Ambient temperature (optional)
