SEL-701-1 Monitor
Date Code 20011009
Settings Calculation
Basic Motor Protection
3.28
start is initiated. When the monitor is equipped with voltage inputs, the trip will occur
approximately 0.5 seconds after ac voltages are applied to the monitor.
NOTE:
When the monitor is applied with a single voltage input
(SINGLEV = Y) phase reversal detection is based on phase
current measurement only.
Speed Switch Tripping
When the motor is equipped with a speed switch, you may wish to provide
additional locked rotor protection using the monitor speed switch input. When the
Speed Switch Trip Time Delay is set, the monitor will trip if the speed switch is not
closed SPDSDLY seconds after the motor start begins. If you wish to use speed switch
tripping, connect the speed switch contacts to monitor input IN3 or to the contact input
at the SEL-2600 RTD Module. The contact input on the SEL-2600 RTD Module is the
Relay Word bit IN7.
NOTE:
The SEL-2600 RTD Module updates the state of the RTD
measurements and contact input every 0.5 seconds. To
account for this update delay, you may wish to set a slightly
longer Speed Switch Trip Time Delay when the speed switch
contact is monitored by the external module.
To disable speed switch tripping, set the Speed Switch Trip Time Delay
equal to OFF.
Table 3.21
Speed Switch Tripping Time Delay Setting
Setting Prompt
Setting Range
Setting Name =
Factory Default
Speed Switch Trip Time Delay
OFF, 0.50–400.00 s
SPDSDLY = OFF
Содержание SEL-701-1
Страница 16: ...This page intentionally left blank ...
Страница 18: ...This page intentionally left blank ...
Страница 20: ...This page intentionally left blank ...
Страница 34: ...This page intentionally left blank ...
Страница 118: ...This page intentionally left blank ...
Страница 142: ...This page intentionally left blank ...
Страница 196: ...This page intentionally left blank ...
Страница 210: ...This page intentionally left blank ...
Страница 242: ...This page intentionally left blank ...
Страница 384: ...This page intentionally left blank ...
Страница 440: ...This page intentionally left blank ...
Страница 452: ...This page intentionally left blank ...