BM5030 with Safety Function
Instruction handbook bmaXX 5000
Document No.: 5.09021.19
335
of 346
B
Power supply
voltage
X2:1, X2:2
Power supply voltage for the electronics of DC link STO function
Technical data see ZPower supply of the STO function– on page 336.
STO A input
X2:3, X2:4
First channel of safe DC link disconnection. This input operates the DC link + switch.
Technical data see ZInputs STO function– on page 336.
STO B input
X2:5, X2:6
Second channel of safe DC link disconnection. This input operates the DC link - switch.
Technical data see ZInputs STO function– on page 336.
Ready-to-operate
output
X2:7, X2:8
The DC link capacitors are charged via resistors after switching on the DC link switch. Af-
ter that the loading resistors are bridged. Now it is possible to draw power from the DC
link by the decentralized drive solutions BM2500. This state is shown by the ready-to-op-
erate output ((X2:7 X2:8 closed).
Error output:
X2:9, X2:10
The error output is active (X2:9 X2:10 open) as long as the DC link STO function is
in error state.
The error state is triggered by following incidents:
m STO error
m Overtemperature heat sink
m Fault of heat sink temperature sensor
STO error:
m At least on DC link switch is closed if the state of the STO inputs changes to „high“.
m t
1
> 5 ms (see ZSTO timing– on page 340)
NOTICE!
The decentralized drive solutions BM2500 connected to the DC link of the BM5030
must not be enabled to state „operation enabled“ before the ready-to-operate output
of the BM5030 is active, otherwise a damage of the device is possible.