AI and AO (or AI, DI and +10 V) as PTC motor temperature sensor interface
WARNING!
IEC 61800-5-1 requires double or reinforced insulation between live parts and
accessible parts when:
• the accessible parts are not conductive, or
• the accessible parts are conductive, but not connected to the protective earth.
Obey this requirement when you plan the connection of the motor temperature
sensor to the drive.
If the motor temperature sensor has a reinforced insulation vs. the motor windings, you
can connect it directly to the drive IO interface. This section shows two connection
alternatives for the direct I/O connection. If the sensor does not have reinforced insulation,
you must use another type of connection to fulfill the safety requirements. See
Implementing a motor temperature sensor connection (page 59)
.
See the firmware manual for information on the related Motor thermal protection function,
and the required parameter settings.
PTC connection 1
1…3 PTC sensors can be connected in series to an analog input and an analog output.
The analog output feeds a constant excitation current of 1.6 mA through the sensor.
The sensor resistance increases as the motor temperature rises, as does the voltage
over the sensor. The temperature measurement function calculates the resistance of
the sensor and generates an indication if overtemperature is detected. Leave the sensor
end of the cable shield unconnected.
T
T
T
AIn
AGND
AOn
1
2
3
AGND
1…3 PTC sensors
1
Analog input. Set the analog input type to V (volt) in parameter group
12 Standard AI
. Define
the temperature sensor type, signal source, etc. with parameters
35.11…35.24
. For the
sensor type, select:
PTC analog I/O
.
2
Analog output. Select the
Excitation mode
for the analog output in parameter group
13 Standard AO
.
3
108 Electrical installation – North America
Summary of Contents for ACS480-04-09A8-1
Page 1: ... ABB GENERAL PURPOSE DRIVES ACS480 drives Hardware manual ...
Page 2: ......
Page 4: ......
Page 14: ...14 ...
Page 22: ...22 ...
Page 28: ...28 ...
Page 38: ...38 ...
Page 44: ...44 ...
Page 118: ...118 ...
Page 126: ...126 ...
Page 174: ...174 ...
Page 176: ...Frame R0 Frame R0 front side IP20 UL open type 176 Dimension drawings ...
Page 177: ... Frame R0 bottom rear IP20 UL open type Dimension drawings 177 ...
Page 178: ...Frame R1 Frame R1 front side IP20 UL open type 178 Dimension drawings ...
Page 179: ... Frame R1 bottom rear IP20 UL open type Dimension drawings 179 ...
Page 180: ... Frame R1 front side UL Type 1 kit installed 180 Dimension drawings ...
Page 181: ... Frame R1 bottom rear UL Type 1 kit installed Dimension drawings 181 ...
Page 182: ...Frame R2 Frame R2 front side IP20 UL open type 182 Dimension drawings ...
Page 183: ... Frame R2 bottom rear IP20 UL open type Dimension drawings 183 ...
Page 184: ... Frame R2 front side UL Type 1 kit installed 184 Dimension drawings ...
Page 185: ... Frame R2 bottom rear UL Type 1 kit installed Dimension drawings 185 ...
Page 186: ...Frame R3 Frame R3 front side IP20 UL open type 186 Dimension drawings ...
Page 187: ... Frame R3 bottom rear IP20 UL open type Dimension drawings 187 ...
Page 188: ... Frame R3 front side UL Type 1 kit installed 188 Dimension drawings ...
Page 189: ... Frame R3 bottom rear UL Type 1 kit installed Dimension drawings 189 ...
Page 190: ...Frame R4 Frame R4 front side IP20 UL open type 190 Dimension drawings ...
Page 191: ... Frame R4 bottom rear IP20 UL open type Dimension drawings 191 ...
Page 192: ... Frame R4 front side UL Type 1 kit installed 192 Dimension drawings ...
Page 193: ... Frame R4 bottom rear UL Type 1 kit installed Dimension drawings 193 ...
Page 194: ...194 ...
Page 221: ... Declarations of conformity The Safe torque off function 221 ...
Page 231: ...Dimensions BIO 01 I O extension module 231 ...
Page 232: ...232 ...
Page 238: ...Dimensions 3AXD50000031148 rev A 238 BREL 01 relay output extension module ...