Brusa DMC514 - Pin 17 EXT AW1, Pin 18 EXT AW2 (External Shut down Path 1 + 2)

45
Technical data
and startup
8.3.7 Pin 17 EXT AW1, Pin 18 EXT AW2 (External shut down path 1 + 2)
INFORMATION
These pins must be active for the basic functioning of the inverter.
This function is also intended as an additional safety installation. The shutdown takes place
redundantly through this at the output stage drivers (see illustration).
If this function is not used, both pins must be connected with terminal 30!
Internal wiring
470pF
Pin 17 EXT AW1
Pin 18 EXT AW2
20uF
Schmitt
Trigger
100kΩ
5V-
Supply
Enable
160kΩ
1,0V
3,3V
48V
15kΩ
To enable the output stage, pin 3 EN must also be high.
The both different circuits enable a redundant, direct switching off of the output stages.
The output stage can be released through higher-level control via these pins.
ISU
Upper
driver
stage
EN
Lower
driver
stage
EN
Pin 18 EXT.AW2
Pin 17 EXT.AW1
Pin 17 EXT.AW1
Pin 18 EXT.AW2
Lower
driver
Signal
Upper
driver
Signal
&
&
Powerstage released