ABB ACH480 - Page 8

78Additional information on the control connections ..................................
78Embedded EIA-485 fieldbus connection ..........................................
80PNP configuration for digital inputs .................................................
80NPN configuration for digital inputs ................................................
81Connection for obtaining 0 … 10 V from analog output 2 (AO2) .
81Connection examples of two-wire and three-wire sensors .........
82
AI and AO (or AI, DI and +10 V) as PTC motor temperature sensor
interface ..................................................................................................
84
AI1 and AI2 as Pt100, Pt1000, Ni1000, KTY83 and KTY84 sensor
inputs ......................................................................................................
85Safe torque off ......................................................................................
85Auxiliary voltage connection ..................................................................................
86Connecting a PC .......................................................................................................
86Installing options ......................................................................................................
87Installing a front option ...................................................................................
88Installing a side option .....................................................................................
7 Electrical installation – North America
91Contents of this chapter .........................................................................................
91Required tools ...........................................................................................................
92Measuring the insulation resistance - North America ......................................
92Measuring the insulation resistance of the drive .......................................
92Measuring the insulation resistance of the input power cable ...............
92Measuring the insulation resistance of the motor and motor cable ......
93Measuring the insulation resistance of the brake resistor circuit ..........
93Grounding system compatibility check – North America .................................
93EMC filter ............................................................................................................
94Ground-to-phase varistor ................................................................................
94
Compatibility of EMC filter and ground-to-phase varistor with the
grounding system .............................................................................................
96
Disconnecting the ground-to-phase varistor, or connecting the EMC
filter .....................................................................................................................
96EMC/VAR screw location .....................................................................
97Guidelines for installing the drive to a TT system ......................................
97Identifying the grounding system of the electrical power network .......
99Connecting the power cables – North America (wiring in conduits) .............
99Connection diagram .........................................................................................
100Connection procedure .....................................................................................
102Connecting the control cables - North America .................................................
102Default I/O connection diagrams (HVAC default) ......................................
104Default fieldbus connection diagram ...........................................................
105Control cable connection procedure .............................................................
106Additional information on the control connections ..................................
106Embedded EIA-485 fieldbus connection ..........................................
108PNP configuration for digital inputs .................................................
8 Table of contents