Brusa DMC524 - Pin 3 en (Enable, Power ON); Pin 8 PG1, 14 PG2, 15 PG3 (Reserve Ground, RS232 Ground)

Technical data
and startup
42
If HV voltage > 100 V, the wiring system is loaded with </= 30 mA.
8.3.3 Pin 3 EN (Enable, Power ON)
INFORMATION
To program new firmware, pin 3 must be high!
Internal wiring
95nF
Pin 3
EN
48V
47uF
+5V
4,7K
4,7K
100n
5V6
KL30
10K
KL15
INT
ISU
FLT
If voltage is applied at pin 2 and pin 3 = high, this effects the start-up of the controller. Communication with the
inverter is thereby enabled. If additional HV voltage is applied, this effects the activation of Ready mode.
The internal device logic is only fed if pin 3 = high. This is also the case if HV+ and HV- are already applied in high
voltage. Pin 3 has the function of terminal 15.
8.3.4 Pin 8 PG1, 14 PG2, 15 PG3 (Reserve ground, RS232 ground)
INFORMATION
The additional ground connections are intended to simplify the external wiring.
Internal wiring
470pF
Pin 8 PG1
Pin 14 PG2
Pin 15 PG3
750mA
The pins 8, 14 and 15 are each connected with pin 1 GND via a reversible fuse (PTC) and are thereby protected.
The following allocation is recommended:
Pin 8: Reserve
Pin 14: CAN-GND
Pin 15: 9 pole D-Sub: Pin 5