Additional information on the connections
■
External power supply for the control unit (XPOW)
The control unit is powered from a 24 V DC, 2 A supply through terminal block XPOW.
Using an external supply is recommended if
• the control unit needs to be kept operational during input power breaks, for example,
because of continuous fieldbus communication
• immediate restart is needed after a power break (that is, no control unit power-up delay
is allowed).
■
DI6 as a PTC sensor input
PTC sensors can be connected to this input for motor temperature measurement as follows.
The sensor can alternatively be connected to FEN-xx encoder interface module. At the
sensor end of the cable, leave the shields unconnected 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. See the firmware manual of the inverter unit for
parameter settings.
1
...
+24V
DI6
+
t
°
+
t
°
+
t
°
+
t
°
+
t
°
+
t
°
One to six PTC thermistors connected in series
1
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, protect the I/O board terminals against contact and do not connected
them to other equipment, or isolate the temperature sensor from the I/O terminals.
Make sure that the voltage does not exceed the maximum allowed voltage over
the PTC sensor.
■
AI1 or AI2 as a Pt100, Pt1000, PTC or KTY84 sensor input
Sensors for motor temperature measurement can be connected between an analog input
and output, an example connection is shown below. (Alternatively, you can connect the
KTY to an FIO-11 or FAIO-01 analog I/O extension module or FEN-xx encoder interface
module.) At the sensor end of the cable, leave the shields unconnected 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.
External control unit 125
Summary of Contents for ACS880-14
Page 1: ...ABB INDUSTRIAL DRIVES ACS880 14 drive modules 132 400 kW 200 400 hp Hardware manual...
Page 2: ......
Page 4: ......
Page 14: ...14...
Page 24: ...24...
Page 30: ...30...
Page 54: ...54...
Page 64: ...64...
Page 98: ...98...
Page 114: ...With twin connectors in the control panel holder 1 2 3 1 114 Electrical installation...
Page 115: ...With FDPI 02 modules OPEN TERMIN ATED 1 1 2 2 OPEN TERMINATED 3 Electrical installation 115 11...
Page 142: ...4 5 6 3 3 1 1 1 1 2 142 Installation example with full cabling panels option H381...
Page 150: ...150 Installation example with full cabling panels option H381...
Page 156: ...156...
Page 204: ...Standard configuration 204 Dimension drawings...
Page 206: ...Drive module with options 0B051 H356 0H371 206 Dimension drawings...
Page 207: ...Configuration with option H381 3AXD50000323210 Dimension drawings 207...
Page 208: ...LCL filter module 208 Dimension drawings...
Page 212: ...External control unit 3AXD50000011687 212 Dimension drawings...
Page 230: ...Declaration of conformity 230 The Safe torque off function...
Page 241: ...241...
Page 246: ...246...