ABB ACS880 Series, Electrical Planning Manual

Page: 33 / 50

Temperature sensor insulation
requirement
Temperature sensor
type
Option module
Pt100,
Pt1000
KTY PTC Insulation/Isolation Type
Reinforced insulation x x - Galvanic isolation between sensor
connector and other connectors (in-
cluding drive control unit connector) FIO-11
Reinforced insulation - x x Galvanic 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.
x x x Basic insulation between sensor
connector and drive control unit
connector. No insulation between
sensor connector and other I/O
connectors. FAIO-01
No special requirement - - x Reinforced 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).
￭ Connection of motor temperature sensor to the drive via a relay
PTC alternative A: This table shows the insulation requirement for a customer’s external
relay, and the insulation requirement for the sensor to fulfill decisive voltage class A (double
insulation) of IEC 60800-5-1. The table also shows the insulation of the factory-installed
relay (plus code option for a cabinet-installed drive), and the insulation requirement for the
sensor.
Temperature sensor insulation
requirement PTC relay
Insulation Type
Basic insulation Basic insulation 6 kV External relay
Basic insulation Basic insulation 6 kV Drive oL505 and +L513
PTC alternative B: Decisive voltage class B of IEC 60800-5-1 (basic insulation) is provided
with a 6 kV relay. Circuits connected to all motor protection relay inputs and outputs must
be protected against direct contact.
Pt100 alternative A: This table shows the insulation requirement for a customer’s external
relay, and the insulation requirement for the sensor to fulfill decisive voltage class A (double
insulation) of IEC 60800-5-1.The table also shows the insulation of the factory-installed
relay (plus code option for a cabinet-installed drive), and the insulation requirement for the
sensor.
Temperature sensor insulation
requirement Pt100 relay
Insulation Type
Basic insulation Basic insulation 6 kV External relay
Double or reinforced insulation Basic insulation < 6 kV Drive oL506 and +L514
Pt100 alternative B: Decisive voltage class B of IEC 60800-5-1 (basic insulation) can be
achieved when there is basic insulation between the sensor and live parts of the motor.
Electrical planning guidelines 33