Technosoft iPOS360 VX-CAN Series - Serial RS-232 Connection; Recommendation for Wiring

 Technosoft 2019 34 iPOS360x VX-CAN/CAT Technical Reference
1. If
CR
CHOP
PEAK
MAX
P
U
I
U
×
>
2
2
the braking power P
CR
must be reduced by increasing either t
d
– the time to decelerate
or C – the external capacitor on the motor supply
2. If
CR
CHOP
NOMCYCLE
dCR
P
U
It
tP
×
>
×
×
2
2
2
either the braking power must be reduced (see Remark 1) or t
CYCLE
– the time
interval between braking cycles must be increased
WARNING!
THE CHOPPING RESISTOR MAY HAVE HOT SURFACES DURING
OPERATION.
3.7.9 Serial RS-232 connection
3.7.9.1 Serial RS-232 connection
Figure 3.29. Serial RS-232 connection
3.7.9.2 Recommendation for wiring
a) If you build the serial cable, you can use a 3-wire shielded cable with shield connected to BOTH ends. Do not
use the shield as GND. The ground wire must be included inside the shield, like the 232Rx and 232Tx signals
b) Always power-off all the iPOS360X supplies before inserting/removing the RS-232 serial connector
c) Do not rely on an earthed PC to provide the iPOS360X GND connection! The drive must be earthed through
a separate circuit. Most communication problems are caused by the lack of such connection