Installation
8.
310
· 272 ·
Ref.1912
DDS
HARDWARE
Before handling the terminals, proceed as indicated and in the following
order:
With respect to the safety functions, keep in mind that:
WARNING.
Disconnect the mains voltage at the electrical cabinet.
Wait a few minutes before handling these terminals.
The power supply of the DDS requires time to decrease the voltage of the
power bus to safe values (< 60 V DC or 42.4 Vpeak). The green indicator DC
BUS ON being turned OFF does not mean that the power bus may be handled
or manipulated. The discharge time depends on the number of elements
connected and it is about 4 minutes.
In screw tightening connections, rigorously apply the torque values shown in
this manual for connectors.
Check if the connectors with automatic locking or a locking lever perform their
function satisfactorily.
The machine manufacturer must mark these verifications in the machine
instruction manual.
WARNING. The STO (Safe Torque Off) safety function do not result in an
electrical disconnection. The DC bus remains under low voltage. Ignoring this
warning may cause electrical shock.
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