
42
Main Features
Fig. 50 Feedback “Status” input
7.6.5 Fail safe operation
Some pump systems must always have a minimum flow
or pressure level, even if the frequency inverter is
tripped or damaged. So at least 1 or 2 (or maybe all)
additional pumps must keep running after the inverter
is powered down or tripped. This kind of “safe” pump
operation can be obtained by using the NC contacts of
the pump control relays. These can be programmed for
each individual additional pump. In this example
pumps P5 and P6 will run at maximum power if the
inverter fails or is powered down.
Fig. 51 Example of “fail safe” operation
See menu:
[529] to [52H] Digital Input
[554] to [55C] Relay
Содержание F33 Series
Страница 1: ...TECO F33 Variable Speed Drive Instruction manual English Software version 4 2X...
Страница 3: ......
Страница 33: ...30 Getting Started...
Страница 51: ...48 Main Features...
Страница 53: ...50 EMC and Machine Directive...
Страница 59: ...56 Operation via the Control Panel...
Страница 65: ...62 Serial communication...
Страница 159: ...156 Troubleshooting Diagnoses and Maintenance...
Страница 165: ...162 Options...
Страница 179: ...176 Technical Data...
Страница 187: ...184 Menu List...