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Product Description
SBM51/06
Datasheet 2.50-40.051-71-EN
Connection
WARNING
Contact with live parts of electrical domestic installation can cause death due to electric shock.
Only connect the device and switch on the power supply if you are qualified to do so. Be sure to
comply with VDE guidelines and local wiring regulations.
!
NOTICE
Switching on the power supply of unparameterized products can lead to unforeseen consequences
such as malfunctions or material damage.
Switch on the power only after the device has been configured by the commissioning technician.
!
NOTICE
Position the SBM51/06 such that it is connected between two Danfoss frequency inverters on the bus
(internal nodes in the network). Terminate the Danfoss bus using an internal DIP switch in the first
and last frequency inverter. This means you are able to achieve the best immunity to disturbance for
the bus system.
During commissioning, ensure that the Danfoss bus system is connected correctly. The Danfoss bus
must not be connected the wrong way round.
If it is not possible to position the SBM51/06 between two frequency inverters (external nodes in the
network), terminate the bus using an 180 Ohm terminating resistor between the terminals P and N.
Activate the terminating resistor of the FI at the other end of the line.
The shield is positioned on the spring-type terminal (or clamp for older VLT models) on one side of
the FI only. The COM terminal on the SBM51/06 is not used and is only used in environments with
severe interference. Clarify connection with Danfoss Support.
System
DDC3000
DDC4000
38 39 40
38
39 40
38
39 40
System
DDC4000
18 19 20
24V~
0V~
24 0
P
N COM
SBM51/06
Danfoss RS485
68 69
Danfoss RS485
RS485
68 69
