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152
Functional Description
CG Drives & Automation, 01-5326-01r5
Fig. 119 Transition speed start
Fig. 120 Effect of transition speed
The settle stop allows the process to settle after a pump is
switched off before the pump control continues. If an
additional pump is stopped D.O.L. (Direct On Line) or Y/
,
the flow or pressure can still fluctuate due to the 'rough'
start/stop method. This could cause unnecessary starting
and stopping of additional pumps.
During the Settle stop:
•
PID controller is off.
•
the speed is kept at a fixed level after stopping a pump
Communication information
Transition Speed Stop [39G]
The transition speed stop is used to minimize a flow/
pressure overshoot when shutting down an additional pump.
The setting depends on the dynamics of both the master
drive and the additional drives.
In general:
•
If the additional pump has 'slow' start/stop dynamics,
then a higher transition speed should be used.
•
If the additional pump has 'fast' start/stop dynamics,
then a lower transition speed should be used.
Communication information
(NG_50-PC-16_1)
Speed
Actual
Trans
Min
Switch on
procedure starts
Additional pump
Master pump
Flow/Pressure
Actual start
command of next
pump (RELAY)
Flow/Pressure
Transition speed
decreases overshoot
Time
39F
Settle Stop
Default:
0 s
Range:
0–999 s
Modbus Instance no/DeviceNet no:
43175
Profibus slot/index
169/79
EtherCAT and CANopen index (hex)
4c67
Profinet IO index
19559
Fieldbus format
Long, 1=1 s
Modbus format
EInt
39G
TransS Stop
Default:
60%
Range:
0-100% of total min speed to max speed
Modbus Instance no/DeviceNet no:
43176
Profibus slot/index
169/80
EtherCAT and CANopen index (hex)
4c68
Profinet IO index
19560
Fieldbus format
Long, 1=1%
Modbus format
EInt
NOTE: If set to 0 %, the transition speed when
stopping pumps, is ignored and no speed adaption is
made.
I.e. the slave pump is stopped directly and speed of
the master pump is continued.
Δ
Содержание Emotron VFX Series
Страница 1: ...Emotron VFX 2 0 AC drive Instruction manual English Valid from software version 4 42...
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Страница 10: ...6 CG Drives Automation 01 5326 01r5...
Страница 50: ...46 Installation CG Drives Automation 01 5326 01r5...
Страница 62: ...58 Getting Started CG Drives Automation 01 5326 03r5...
Страница 74: ...70 EMC and standards CG Drives Automation 01 5326 01r5...
Страница 90: ...86 Operation via the Control Panel CG Drives Automation 01 5326 01r5...
Страница 218: ...216 CG Drives Automation 01 5326 01r5...
Страница 226: ...224 Troubleshooting Diagnoses and Maintenance CG Drives Automation 01 5326 01r5...
Страница 236: ...234 Options CG Drives Automation 01 5326 01r5...
Страница 256: ...254 Technical Data CG Drives Automation 01 5326 01r5...
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