115
T C U T r a n s d u c e r C o n f i g u r a t i o n E x a m p l e s
Transducer Low Level Fault Enabled
Enable to generate a transducer
fault when a low float condition
occurs.
page 54
Bubbler Noise Fault
Enabled or Disabled Enable if the system is a bubbler
system and you want to generate
a transducer fault when the TCU
doesn’t detect air-pump induced
noise.
page 54
High Float Override
Disabled
Disable for systems not using a
float system as the primary or
backup method of pump control.
page 54
Minimum Run
1.0
Minimum time pumps should run.
Used to prevent short cycling.
page 52
Minimum Off
0.5
Minimum time pumps should
remain off. Used to prevent short
cycling.
page 52
Response to Fault Conditions (TCU with High Float)
Fault(s)
Alarms
Pump Operation
Behavior
Transducer low
condition
• Transducer
fault alarm
• Low well alarm
All pumps off
Low well and transducer fault alarms are generated.
All pumps are turned off. When the transducer
level returns to the normal range, the low well
alarm clears and normal pump operation resumes.
The transducer fault alarm remains active until the
TCU has been reset.
Transducer high
condition
High well alarm
All pumps on
A high well alarm is generated and all pumps are
staggered on. When the transducer level returns to
the normal range, the high well alarm clears and
normal pump operation resumes.
Transducer noise
condition
Transducer fault
alarm
Normal pump
operation
A transducer fault alarm is generated. Pumps
operate normally. The transducer fault alarm
remains active until the TCU has been reset.
High float
condition
• Transducer
fault alarm
• High well
alarm
All pumps on
High well and transducer fault alarms are
generated. All pumps are staggered on. Minimum
pump run and off timers are applied. When the
High float turns off, the high well alarm clears and
normal pump operation resumes. The transducer
fault alarm remains active until the TCU has been
reset.
Concurrent
transducer high
and high float
conditions
High well alarm
All pumps on
A high well alarm is generated. All pumps
are staggered on. A transducer fault alarm is
not generated if events occur in the following
sequence: Transducer high condition precedes
the high float condition; and the high float OFF
precedes transducer normal. When the high float
condition clears, normal pump operation resumes.
Summary of Contents for TCU800
Page 1: ...Installation and Operation Manual T C U 8 0 0 Data Flow Systems Inc P r e l i m i n a r y ...
Page 2: ...Intentionally left blank ...
Page 4: ...D a t a F l o w S y s t e m s I n c Intentionally left blank ...
Page 8: ...ii Intentionally left blank ...
Page 10: ...ii Intentionally left blank ...
Page 56: ...46 C h a p t e r 5 Quick View Analog View Pump Statistics ...
Page 57: ...47 U s e r I n t e r f a c e Alarms Settings Screen 1 Settings Screen 2 ...
Page 58: ...48 C h a p t e r 5 Advanced Settings About ...
Page 77: ...67 O p e r a t i n g P r o c e d u r e s TCU Installed in Existing Control Panel ...
Page 87: ...77 M o d b u s S u p p o r t Figure 1 Figure 2 Figure 3 ...
Page 92: ...82 D a t a F l o w S y s t e m s I n c Appendix ...
Page 157: ...147 D a t a F l o w S y s t e m s I n c ...
Page 158: ...148 D a t a F l o w S y s t e m s I n c ...
Page 159: ...149 D a t a F l o w S y s t e m s I n c ...
Page 160: ......