No. Description
1 Terminal block of the inverter (option +L504).
Hardwired to terminals of the inverter control
board.
2 Inverter control unit (RDCU) including the
control board (RMIO)
3 Supply control unit (RDCU) including the
control board (RMIO)
4 I/O module adapter (AIMA, optional)
5 24 V DC power supply
6 24 V DC back-up accumulator (auxiliary power
interface board [RAPI])
7 Relay for disconnecting the power supply for
the cooling fans and connecting the heating on
when the drive is powered but not running.
8 Pt100 relays for motor temperature supervision
(option +L506)
9 Internal control relays
1 3
4
5
6
9
7
2
8
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