TECO F33 Series, Инструкция по эксплуатации, Страница: 109 / 192

106 Functional Description
Change Timer [395]
When the time set here is elapsed, the master drive will
be changed. This function is only active if Select Drive
[393]=All and Change Cond [394]= Timer/ Both.
Communication information
Drives on Change [396]
If a master drive is changed according to the timer func-
tion (Change Condition=Timer/Both [394]), it is possi-
ble to leave additional pumps running during the
change operation. With this function the change opera-
tion will be as smooth as possible. The maximum
number to be programmed in this menu depends on
the number of additional drives.
Example:
If the number of drives is set to 6, the maximum value
will be 4. This function is only active if Select Drive
[393]=All.
Communication information
Upper Band [397]
If the speed of the master drive comes into the upper
band, an additional drive will be added after a delay
time that is set in start delay [399].
Communication information
Example:
Max Speed = 1500 rpm
Min Speed = 300 rpm
Upper Band = 10%
Start delay will be activated:
Range = Max Speed to Min Speed = 1500–300 = 1200
rpm
10% of 1200 rpm = 120 rpm
Start level = 1500–120 = 1380 rpm
Fig. 91 Upper band
Lower Band [398]
If the speed of the master drive comes into the lower
band an additional drive will be stopped after a delay
time. This delay time is set in the parameter Stop Delay
[39A].
Default: 50 h
Range: 1-3000 h
Modbus Instance no/DeviceNet no: 43165
Profibus slot/index 169/69
Fieldbus format UInt, 1=1 h
Modbus format UInt, 1=1 h
Default: 0
Range: 0 to (the number of drives - 2)
Modbus Instance no/DeviceNet no: 43166
Profibus slot/index 169/70
Fieldbus format UInt
Modbus format UInt
395 Change Timer
Stp 50h
A
A
396 Drives on Ch
Stp 0
Default: 10%
Range: 0-100% of total min speed to max speed
Modbus Instance no/DeviceNet no: 43167
Profibus slot/index 169/71
Fieldbus format Long, 1=1%
Modbus format EInt
Default: 10%
Range: 0-100% of total min speed to max speed
397 Upper Band
Stp 10%
A
(NG_50-PC-12_1)
Flow/Pressure
Speed
Max
Min
Upper band
next pump starts
Start Delay [399]
A
398 Lower Band
Stp 10%