ABB ACS880-34 Series - Protecting the Drive against Ground Faults; Residual Current Device Compatibility; Implementing the Emergency Stop Function; Implementing the Safe Torque off Function

Temperature sensor insulation
requirement
Temperature sensor
type
Option module
Pt100,
Pt1000
KTYPTCInsulation/IsolationType
Reinforced insulationxx-Galvanic isolation between sensor
connector and other connectors (in-
cluding drive control unit connector)
FIO-11
Reinforced insulation-xxGalvanic isolation between sensor
connector and other connectors (in-
cluding drive control unit connector)
FEN-xx
Basic insulation. Connectors of op-
tion module other than sensor con-
nector must be left unconnected.
xxxBasic insulation between sensor
connector and drive control unit
connector. No insulation between
sensor connector and other I/O
connectors.
FAIO-01
No special requirement--xReinforced insulation between
sensor connector and other connect-
ors (including drive control unit con-
nector).
FPTC-
xx
1)
1)
Suitable for use in safety functions (SIL2 / PL c rated).
Protecting the drive against ground faults
The drive is equipped with an internal ground fault protective function to protect the unit
against ground faults in the motor and motor cable. This function is not a personnel safety
or a fire protection feature. See the firmware manual for more information.
￭ Residual current device compatibility
The drive is suitable to be used with residual current devices of Type B.
Note: As standard, the drive contains capacitors connected between the main circuit and
the frame. These capacitors and long motor cables increase the ground leakage current
and may cause nuisance faults in residual current devices.
Implementing the Emergency stop function
For safety reasons, install the emergency stop devices at each operator control station and
at other operating stations where emergency stop may be needed. Implement the emergency
stop according to relevant standards.
Note: You can use the Safe torque off function of the drive to implement the Emergency
stop function.
Implementing the Safe torque off function
See The Safe torque off function (page 211).
Implementing the functions provided by the FSO-xx safety
functions module
You can order a safety function module from ABB. The cabinet builder can use the module
for implementing various safety functions.
88 Guidelines for planning the electrical installation