ABB ACS880-07, Руководство по оборудованию

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/ 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 control unit.
Make the corresponding setting in the control program in parameter group 12 Standard AI .
2)
Select the excitation mode in parameter group 13 Standard AO .
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.
￭ Drive-to-drive link (XD2D)
The drive-to-drive link is a daisy-chained RS-485 transmission line that allows basic
master/follower communication with one master drive and multiple followers.
Enable bus termination on the inverters at the ends of the drive-to-drive link by setting switch
D2D TERM on the control unit to ON. On intermediate inverters, disable bus termination.
Use shielded twisted-pair cable (~100 ohm, for example, PROFIBUS-compatible cable) for
the wiring. For best immunity, high quality cable is recommended. Keep the cable as short
as possible; the maximum length of the link is 50 meters (164 ft). Avoid unnecessary loops
and running the cable near power cables (such as motor cables). Ground the cable shields.
The following diagram shows the wiring of the drive-to-drive link.
Control units of the drive 135