ABB ACS880-01 Series, Hardware Manual

Page: 104 / 224

104 Electrical installation
DI6 (XDI:6) as PTC sensor input
PTC sensors can be connected to this input for motor temperature measurement as
follows. The sum of the sensor resistances must not exceed the threshold resistance
of the digital input at the motor normal operating temperature. Do not connect both
ends of the cable shield directly to ground. If a capacitor cannot be used at one end,
leave that end of the shield unconnected. See the firmware manual for parameter
settings.
Note : PTC sensors can alternatively be connected to FEN-xx encoder interface
module.
Safe torque off (XSTO)
For the drive to start, both connections (OUT1 to IN1 and IN2) must be closed. By
default, the terminal block has jumpers to close the circuit. Remove the jumpers
before connecting an external Safe torque off circuitry to the drive. See page
197 .
Safety functions (X12)
See section Implementing the Safety functions options on page 73 , and FSO-11
user’s manual (3AUA0000097054 [English]).
WARNING! As the inputs pictured above are not insulated according to
IEC 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.
T
3.3 nF
> 630 V AC
PTC
DI6
+24VD
T T
“0” > 4 kohm
“1” < 1.5 kohm
I
max
= 5 mA
ACS880-01 HW.book Page 104 Monday, July 1, 2013 4:51 PM