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BUENO ELECTRIC
BUENO ELECTRIC
BUENO ELECTRIC
BUENO ELECTRIC
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16
2) Breaker or contactor is in close state
3) Under-voltage protection soft jumper is operating
4) Under-voltage protection is controlled through hard jumper
（
KG1.9
＝
1
）
, under the state of operation
5) Under-voltage protection operation time-delay is up.
Terminal of under-voltage protection hard functional switch is4X:3
，
convenient for operators to operate or exit
under-voltage protection function.
4.14 Over-voltage protection
The breaker or contactor is in close state. When any line voltage is larger than over-voltage setting and
reaches setting time, over-voltage output would operate, or alarm signal would be sent. The operation mode could
be selected through control character KG1.13.
4.15 Zero-sequence voltage protection
This protection function responses to the zero-sequence voltage caused by the motor stator grounding. When
breaker is in close state, when zero-sequence voltage is larger than protection setting and reaches setting time,
zero-sequence voltage output would operate, or alarm signal would be sent. The operation mode could be selected
through control character KG1.14. Zero-sequence voltage is connected with AC input terminal 1X:5
～
1X:6.
4.16 Non-electric quantity protection
This protection function must cooperate with exterior light control relay. The non-electric quantity contacts
from motor are converted to be 24V through light control relay, and then switching terminals of input signal to
device are 4X:1
～
4X:3. After receiving non-electric quantity signal BEPR- 822U could carry out output trip
through time delay (at most 6000 seconds), send the signal, record the event, and upload the report to monitoring
system computer through communication. For BEPR- 822U device, it could be controlled with control character
KG1.7
～
KG1.9.
The default definitions of switching input terminals 4X:1
～
4X:3 and corresponding signal lights are
introduced in the following table. If there is difference in project application, the situation could be determined by
specific terminal of each project. When input 4X:3 serves as non-electric quantity input terminal, please ensure
that KG1.9
＝
0. It is specially indicated that as the related control character is placed at 1, the input terminals
4X1
～
4X:2 could be used as ordinary input terminals.
BEPR- 822U
Default definition
Corresponding indicating lights
Non-electric quantity 1
Low water pressure
Non-electric quantity
Non-electric quantity 2
Low oil pressure
Non-electric quantity
