ABB PSTX720 - Page 107

1SFC132081M0201 | Installation and commissioning manual | Functions 107
7.17.10 Phase reversal protection
This protection senses if the phases are connected
incorrectly.
The order in which the phases are connected to the
in-stream power has no effect on the Softstarter, but it
may be relevant to the motor, which is connected to the
Softstarter. The motor can for example run in the wrong
direction if the phases are connected incorrectly. This
protection senses if the phases are connected in the
wrong order and then prevents the engine from starting.
Phase reversal protection has these parameters
Parameter Description Setting range Default value
16.01 Phase rev out Identifies the Event groups this
protection is part of.
Eventgroup 0 ... 6 0000010
16.02 Phase rev operation Sets the operation of this
protection.
Off, Stop manual,
Stop auto, Indication.
Off
16.12 Phase rev expected sequence Expected phase sequence L1_L2_L3, L1_L3_L2,
Unknown
L1_L2_L3
7.17.11 Frequence range protection
Sets the trip level for the frequency.
Frequency range protection has these parameters:
Parameter Description Setting range Default value
16.03 Freq range lower trip lvl Sets the lower trip level for the
frequency.
40 ...72 Hz 45 Hz
16.04 Freq range upper trip lvl Sets the upper trip level for the
frequency.
40 ...72 Hz 66 Hz
16.05 Freq range trip time Sets the time that the frequency is
outside the trip range to trip.
0 ... 60 s 5 s
16.06 Freq range out Identifies the Event groups this
protection is part of.
Eventgroup 0 ... 6 0000010
16.07 Freq range operation Sets the operation of this
protection.
Off, Stop manual,
Stop auto, Indication.
Off
7.17.12 Bypass open protection
This protection senses if the Bypass contactor or relay
did not close when Top of ramp is reached.
Speak to ABB Sales Offices for service.
Bypass open protection has these parameters:
Parameter Description Setting range Default value
16.08 Bypass open out Identifies the Event groups this
protection is part of.
Eventgroup 0 ... 6 0000010
16.09 Bypass open operation Sets the operation of this
protection.
Off, Stop manual,
Stop auto, Indication.
Indication
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