Parameter listing and descriptions
255
ACH550 User's Manual
WARNING!
IEC 60664 requires double or reinforced insulation
between live parts and the surface of accessible parts of
electrical equipment which are either non-conductive or
conductive but not connected to the protective earth.
To fulfil this requirement, connect a thermistor (and other similar
components) to the drive’s control terminals using any of these
alternatives:
• Separate the thermistor from live parts of the motor with
double reinforced insulation.
• Protect all circuits connected to the drive’s digital and analog
inputs. Protect against contact, and insulate from other low
voltage circuits with basic insulation (rated for the same
voltage level as the drive’s main circuit).
• Use an external thermistor relay. The relay insulation must be
rated for the same voltage level as the drive’s main circuit.
The figure below shows the thermistor relay connection. At the
motor end the cable shield should be earthed through a 10 nF
capacitor. If this is not possible, leave the shield unconnected.
For other faults, or for anticipating motor overheating using a
model, see
.
Motor
T
Thermistor
relay
I/O board
DI
+24 VDC
Summary of Contents for ACH550-01
Page 1: ...ACH550 User s Manual ACH550 01 Drives 0 75 110 kW ACH550 UH Drives 1 150 HP ABB ...
Page 10: ...Update Notice 8 ...
Page 12: ......
Page 18: ...6 ACH550 User s Manual ...
Page 50: ...38 Preparing for installation ACH550 User s Manual ...
Page 325: ...313 ACH550 User s Manual ...
Page 358: ...346 ACH550 User s Manual ...
Page 409: ...Technical data 397 ACH550 User s Manual Frame size R1 IP54 UL Type 12 ...
Page 410: ...398 Technical data ACH550 User s Manual Frame size R2 IP54 UL Type 12 ...
Page 411: ...Technical data 399 ACH550 User s Manual Frame size R3 IP54 UL Type 12 ...
Page 412: ...400 Technical data ACH550 User s Manual Frame size R4 IP54 UL Type 12 ...
Page 413: ...Technical data 401 ACH550 User s Manual Frame size R5 IP54 UL Type 12 ...
Page 414: ...402 Technical data ACH550 User s Manual Frame size R6 IP54 UL Type 12 ...
Page 415: ...Technical data 403 ACH550 User s Manual Frame size R1 IP21 UL Type 1 ...
Page 416: ...404 Technical data ACH550 User s Manual Frame size R2 IP21 UL Type 1 ...
Page 417: ...Technical data 405 ACH550 User s Manual Frame size R3 IP21 UL Type 1 ...
Page 418: ...406 Technical data ACH550 User s Manual Frame size R4 IP21 UL Type 1 ...
Page 419: ...Technical data 407 ACH550 User s Manual Frame size R5 IP21 UL Type 1 ...
Page 420: ...408 Technical data ACH550 User s Manual Frame size R6 IP21 UL Type 1 ...
Page 453: ......