Electrical connection
en
Installation and operating instructions Wilo DD-I
117
The pump parameters (operating and fault messages) for the single pump are recorded
via the frequency converter. In addition, current measured values can be output via the
frequency converter. The functions are assigned via the Digital Data Interface.
Wilo-EFC
24 VDC
PTC
PTC
LAN
RJ45
COM-Card
ModBus TCP
COM-Card PTC
Switch/Router
Start/Stop
Extern Off
PTC
Safe Torque Off (STO)
MCA 122
MCB 112
HMI
ModBus TCP
Ethernet
Modbus
Signal cable
Sensors
Control cable
Power connection
Optional
Mandatory for
potentially explosive conditions
3x inputs, freely configurable:
• Leakage – Warning
• Leakage – Alarm
• High Clog Limit
1x outputs, freely configurable:
• Frequency
• Fill level
• Pressure
• Flow rate
Signal type:
• 0-20 mA
• 4-20 mA
2x outputs, freely configurable:
• Operation
• Warning
• Error
• Flush cycle active
Analogue outputs
Digital inputs
Relay outputs
Fig. 14:
Connection of LSI system mode: Frequency converter
CAUTION! Always use the digital inputs "Start/Stop", "External off" and "Safe
Torque Off". If the inputs are not needed, install a converter bridge!
Summary of Contents for DD-I
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