
CG Drives & Automation 01-7491-01r0
Main Features
73
Fig. 82 Feedback "Status" input.
Fig. 83
Fail safe operation
Some pump systems must always have a minimum flow or pressure level, even if the fre-
quency 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.
Example of "Fail safe" operation.
P1
P2
P3
PM
FDU
MASTER
R:SlavePump3
R:SlavePump2
R:SlavePump1
DI:Pump1Feedb
DI:Pump2Feedb
DI:Pump3Feedb
other
drive
other
drive
other
drive
feedback
inputs
(NG_50-PC-6_1)
See menu:
[529] to [52H] Digital Input
[554] to [55C] Relay
P1
P2
P3
P4
P5
P6
PM
FDU
MASTER
R:SlavePump6
R:SlavePump5
R:SlavePump4
R:SlavePump3
R:SlavePump2
R:SlavePump1
(50-PC-7_1)
See menu:
[554] to [55C] Relays
[55D4] to [55DC] Mode
Содержание FDU Series
Страница 1: ...Emotron FDU 2 1 AC drive Instruction manual English Valid from software version 5 00...
Страница 2: ......
Страница 4: ......
Страница 10: ...6 CG Drives Automation 01 7491 01r0...
Страница 50: ...46 Installation CG Drives Automation 01 7491 01r0...
Страница 60: ...56 Control Connections CG Drives Automation 01 7491 01r0...
Страница 64: ...60 Getting Started CG Drives Automation 01 7491 01r0...
Страница 84: ...80 EMC and standards CG Drives Automation 01 7491 01r0...
Страница 195: ...CG Drives Automation 01 7491 01r0 191...
Страница 196: ...192 CG Drives Automation 01 7491 01r0...
Страница 204: ...200 Troubleshooting Diagnoses and Maintenance CG Drives Automation 01 7491 01r0...
Страница 219: ...CG Drives Automation 01 7491 01r0 Technical Data 215...
Страница 254: ...250 Menu List CG Drives Automation 01 7491 01r0...
Страница 259: ......