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Electrical connection
en
Installation and operating instructions Wilo DD-I
111
Function
Contact type
Dry Run
Normally closed contact (NC)
Leakage Warn
Normally open contact (NO)
Leakage Alarm
Normally open contact (NO)
Reset
Normally open contact (NO)
High Clogg Limit
Normally open contact (NO)
4.5.6
Connecting analogue inputs
Note the following when connecting analogue inputs:
ƒ
Use shielded cables.
ƒ
You can freely configure the corresponding functions for analogue inputs. Assign
corresponding functions in the Digital Data Interface!
NOTICE
Observe the manufacturer’s instructions!
For more information, read and comply with the frequency converter instructions.
Wilo-EFC frequency converter
130BD530.10
BUSTER.
OFF-ON
A53 A54
U- I U- I
Fig. 9:
Position for switches A53 and A54
ƒ
Supply voltage: 10 VDC, 15 mA or 24 VDC, 200 mA
ƒ
Terminals: 53, 54
The individual connection depends on the installed sensor type.
CAUTION! Note the
manufacturer's instructions on information about how to correctly connect the
unit!
ƒ
Measurement range: 0...20 mA, 4...20 mA or 0...10 V.
Additionally adjust the signal type (voltage (U) or current (I)) using two switches at
the frequency converter. The two switches (A53 and A54) are located below the fre-
quency converter display.
NOTICE! Also adjust the measurement range in the Di-
gital Data Interface!
It is possible to assign the following functions to the Digital Data Interface:
ƒ
External Control Value
Setpoint specification to control the pump speed as part of an analogue signal from
primary control.
ƒ
Level
Recording the current fill level to record data. Basis for the "Increasing" and "Drop-
ping" level functions at the digital output.
ƒ
Pressure
Recording the current system pressure to record data.
ƒ
Flow
Recording the current flow rate to record data.
4.5.7
Relay output connection
Note the following when connecting relay outputs:
ƒ
Use shielded cables.
ƒ
You can freely configure the corresponding functions for relay outputs. Assign cor-
responding functions in the Digital Data Interface!
NOTICE
Observe the manufacturer’s instructions!
For more information, read and comply with the frequency converter instructions.
Wilo-EFC frequency converter
ƒ
2x type C relay outputs.
NOTICE! Note the manufacturer instructions for exact re-
lay output positioning!
ƒ
Switching capacity: 240 VAC, 2 A
A higher switching capacity can be applied at relay output 2 on the NO contact (ter-
minal: 4/5): max. 400 VAC, 2 A
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