Electrical installation 81
Wiring the thermistor relay(s) (oL505 and +2L505)
The external wiring of 2L505 (two thermistor relays) is shown below. For example,
one relay can be used to monitor the motor windings, the other to monitor the bearings.
The maximum contact load capacity is 250 V AC 10 A. For the actual wiring, see the circuit
diagram delivered with the drive.
1
2
3
4
5
6
7
8
9
10
11
12
25
26
27
28
X506
T
T
1…n × PTC
6
5
1…n × PTC
1
PTC sensors monitored by relay K74.
R
G
=
R
1
+
R
2
+
R
N
< 1.5 kohm.
2
External reset for relay K74 (to be bridged for
autoreset functionality)
3
PTC sensors monitored by relay K75.
R
G
=
R
1
+
R
2
+
R
N
< 1.5 kohm.
4
External reset for relay K75 (to be bridged for
autoreset functionality)
5
Overheat indication from relay K74:
overtemperature = contact open.
6
Overheat indication from relay K75:
overtemperature = contact open.
2
3
1
4
Summary of Contents for ACS880-07XT Series
Page 1: ...ABB industrial drives Hardware manual ACS880 07XT drives 400 to 1200 kW ...
Page 4: ......
Page 12: ...12 ...
Page 20: ...20 Safety instructions ...
Page 26: ...26 Introduction to the manual ...
Page 54: ...54 Mechanical installation ...
Page 89: ...Electrical installation 89 PE 11 8 4 9 11 ...
Page 94: ...94 Electrical installation ...
Page 112: ...112 Fault tracing ...
Page 123: ...Maintenance 123 5 6 7 ...
Page 124: ...124 Maintenance 8 10 9 ...
Page 126: ...126 Maintenance 6 5 4 ...
Page 127: ...Maintenance 127 9 8 7 ...
Page 128: ...128 Maintenance 12 11 10 ...
Page 149: ...Dimensions 149 Dimension drawing examples Frame 2 R11 R10 with brake chopper ...
Page 150: ...150 Dimensions Frame 2 R11 R10 without brake chopper ...
Page 153: ...Dimensions 153 Location of input terminals ACS880 07XT 12 pulse ...
Page 154: ...154 Dimensions Location of output terminals ACS880 07XT R10 with du dt ...
Page 155: ...Dimensions 155 Location of output terminals ACS880 07XT R10 without du dt ...
Page 156: ...156 Dimensions Location of output terminals ACS880 07XT R11 with du dt ...
Page 157: ...Dimensions 157 Location of output terminals ACS880 07XT R11 without du dt ...
Page 158: ...158 Dimensions Location of PE terminals ACS880 07XT ...
Page 159: ...Dimensions 159 Location of resistor terminals ACS880 07XT R10 ...
Page 160: ...160 Dimensions Location of resistor terminals ACS880 07XT R11 ...
Page 168: ...www abb com drives www abb com drivespartners 3ABD00043579 Rev C EN 2018 01 01 Contact us ...