ABB ACH550-01 User Manual page 403

ACH550 User's Manual
Communications
Terminals 28
shielded cables.
X1 Identification
28 Screen
29 B
30 A
31 AGND
32 Screen
1
For functional descriptions, see chapters
wiring and
Efficiency
Approximately 98% at nominal power level.
Cooling
Method
Free space around the
unit
Technical data
32 are for RS485 modbus communications. Use
...
Hardware description
RS485 Multidrop application
Other Modbus devices
SCR
B
A
GND
B
A
GND
SCR
Parameter listing and
Cooling specifications
1
28 SCR
29 B
30 A
31 AGND
32 SCR
RS485 interface
J2 J5
ON ON
off position
Bus termination
Application macros and
descriptions.
Internal fan, flow direction from
bottom to top
• 200 mm (8 in) above and
below the unit
• 0 mm (0 in) along each side
of the unit
J2 J5
ON ON
on position
391