Blue Ribbon BB4000, Инструкция по эксплуатации

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31
Model BB4000 Controller Instruction Manual
12.3. Manually Starting / Stopping Flush Cycle:
Start - Press and hold the LEVEL Push-Button until the “LEVEL” indicator begins to flash.
(Momentarily set Coil 139 in SCADA Register 40009.)
Stop - Press and hold the LEVEL Push-Button until the “LEVEL” indicator returns to normal.
(Momentarily set Coil 140 in SCADA Register 40009.)
(Ends Flush Cycle even if it was started by the Time Delay or External Time Clock.)
Notes:
1. The Flush Cycle Feature only works in the “Pump Down” mode, (P.19 = 1). If Para-
meter P.19 is changed to “Pump Up” mode (P.19 = 2), then Parameter P.40 will be
set to “0”.
2. Use of an External Time Clock to start the Flush Cycle may be preferred, because it
would provide control over when the Flush Cycle occurs.
3. Where VFDs are used, the analog Speed Reference will be forced to 100%.
4. The number of pumps called to run by the Flush Cycle logic is always limited by the
following:
A. Parameter P.14 - Number of Pumps Allowed to Run at the Same Time.
B. Closed Discrete Inputs that are Programmed for Pump 1 (2, 3, 4) Disable, or All
Pump Disable.
5. All backup systems must be setup so that they do not activate within the Flush Cycle
operating range set on Parameters P.42 and P.43.
6. The Low Level Float Backup (Discrete Input programmed for Function 32) will turn off
all pumps upon low level. Therefore, the Flush Cycle Stop Level must be set higher
than the Low Level Float.
7. The Flush Cycle Status (Active or Inactive) may be read from Coil 141 in SCADA
Register 40009.
12.4. Flush Cycle - Setup Parameters
p
araMeter
D
efault
V
alue
c
urrent
V
alue
S
etting
D
efinitionS
p.40
0
Flush Cycle Mode
0 = Flush Cycle Disabled
1 = Activated by Internal Time Delay as set on Parameter P.41
2 = Activated by External Time Clock by the Closure of a Discrete Input
programmed to perform Function 39. Note: Time Clock Contacts
may stay closed indefinitely, but must re-open in order to reset logic
for next Flush Cycle.
p.41 24 hours Delay Between Flush Cycles Range: 1 - 255 hours
p.42
2.5 feet Flush Cycle Stop Level Range: 0.2 - 99.9 feet
p.43 9.0 feet Flush Cycle Start Level Range: 0.2 - 99.9 feet
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