ABB ACS880-37LC, Hardware Manual

Page: 106 / 202

or ground them indirectly via a high-frequency capacitor with a few nanofarads, for example
3.3 nF / 630 V. The shield can also be grounded directly at both ends if they are in the same
ground line with no significant voltage drop between the end points.
„
„
„
XAI
XAO
AIn+
AIn-
AOn
AGND
1)
2)
T
T T
1 … 3 × Pt100/Pt1000/PTC or 1 × KTY84
1)
Set the input type to voltage with the appropriate switch or jumper on the inverter control
unit. Make the corresponding setting in the inverter unit control program in parameter group
12 Standard AI .
2)
Select the excitation mode in parameter group 13 Standard AO of inverter unit control
program.
WARNING!
As the inputs pictured above are not insulated according to IEC/EN 60664, the
connection of the motor temperature sensor requires double or reinforced insulation
between motor live parts and the sensor. If the assembly does not fulfill the
requirement, the I/O board terminals must be protected against contact and must
not be connected to other equipment or the temperature sensor must be isolated
from the I/O terminals.
DIIL input
The DIIL input is used for the connection of safety circuits. The input is parametrized to stop
the unit when the input signal is lost.
Note:
This input is NOT SIL or Pl certified.
The XD2D connector
The XD2D connector provides an RS-485 connection that can be used for
• basic master/follower communication with one master drive and multiple followers,
• fieldbus control through the embedded fieldbus interface (EFB), or
• drive-to-drive (D2D) communication implemented by application programming.
See the firmware manual of the drive for the related parameter settings.
Enable bus termination on the units at the ends of the drive-to-drive link. Disable bus
termination on the intermediate units.
106 Control units of the drive