Elettronica Santerno SINUS K, User Manual

Page: 131 / 191

SINUS K
INSTALLATION
INSTRUCTIONS
131/ 191
MASTER – SLAVE CONNECTION
The Master-Slave connection must be used when multiple braking units are connected to the same inverter. An
additional connection must be done between the Master output signal (terminal 8 in M1) and the Slave input
signal (terminal 4 in M1); zero volt of the signal connector in the Master module (terminal 2 in M1) must be
connected to zero volt of the signal connector in the Slave module (terminal 2 in M1).
The connection of more than two modules must always be done by configuring one module like a master and
the other modules like slaves. Use configuration jumpers accordingly.
The max. temperature alarm of the braking unit must be used as a digital signal to control the inverter stop. All
contacts (voltage-free contacts) in all braking modules may be series-connected as shown in the diagram below:
Figure 59: Master – Slave multiple connection.
NOTE
NEVER connect signal zero volt (terminal 2 in M1) to zero volt of the inverter
power supply voltage ( -).
NOTE
Install a 50A fuse with a DC current of at least 700 Vdc (type URDC SIBA series,
NH1 fuse) provided with a safety contact.
CAUTION Link the safety contact of the fuse being used with the external alarm of BU200.