TECO F33 Series, Instruction Manual, Page: 110 / 192

Functional Description 107
Communication information
Example:
Max Speed = 1500 rpm
Min Speed = 300 rpm
Lower Band = 10%
Stop delay will be activated:
Range = Max Speed - Min Speed = 1500–300 = 1200
rpm
10% of 1200 rpm = 120 rpm
Start level = 300 + 120 = 420 rpm
Fig. 92 Lower band
Start Delay [399]
This delay time must have elapsed before the next
pump is started. A delay time prevents the nervous
switching of pumps.
Communication information
Stop Delay [39A]
This delay time must have elapsed before the 'top' pump is
stopped. A delay time prevents the nervous switching of
pumps.
Communication information
Upper Band Limit [39B]
If the speed of the pump reaches the upper band limit,
the next pump is started immediately without delay. If a
start delay is used this delay will be ignored. Range is
between 0%, equalling max speed, and the set percent-
age for the UpperBand [397].
Communication information
Fig. 93 Upper band limit
Modbus Instance no/DeviceNet no: 43168
Profibus slot/index 169/72
Fieldbus format Long, 1=1%
Modbus format EInt
Default: 0 s
Range: 0-999 s
Modbus Instance no/DeviceNet no: 43169
Profibus slot/index 169/73
Fieldbus format Long, 1=1s
Modbus format EInt
(NG_50-PC-13_1)
Speed
Max
Min
“top” pump stops
Lower band
Stop Delay [39A]
Flow/Pressure
399 Start Delay
Stp 0s
A
Default: 0 s
Range: 0-999 s
Modbus Instance no/DeviceNet no: 43170
Profibus slot/index 169/74
Fieldbus format Long, 1=1 s
Modbus format EInt
Default: 0%
Range:
0 to Upper Band level. 0% (=max speed) means
that the Limit function is switched off.
Modbus Instance no/DeviceNet no: 43171
Profibus slot/index 169/75
Fieldbus format Long, 1=1%
Modbus format EInt
39A Stop Delay
Stp 0s
A
39B Upp Band Lim
Stp 0%
A
(NG_50-PC-14_2)
Speed
Max
Min
Upper band
Start Delay [399]
Upper band
limit [39B]
next pump starts
immediately
Flow/Pressure