Motor Temperature Monitoring With Ptc Or Thermal Contact 6.6−8 - Lenze 9300 Series System Manual

6.6 Adjusting the motor
6.6.3 Motor temperature monitoring with PTC or thermal contact
Information on the motor
nameplate
Field C0086
C86 Type
1089 MDEBAXM−080−12 252
1090 MDEBAXM−080−32 213
1091 MDEBAXM−080−32 253
1092 MDEBAXM−090−12 214
1093 MDEBAXM−090−12 254
1094 MDEBAXM−090−32 215
1095 MDEBAXM−090−32 255
1096 MDEBAXM−100−12 216
1097 MDEBAXM−100−12 256
1098 MDEBAXM−100−32 217
1099 MDEBAXM−100−32 257
1100 MDEBAXM−112−22 218
1101 MDEBAXM−112−22 258
1102 MDEBAXM−112−32 219
1114 MDFMAxx−200−32 224
1115 MDFMAxx−200−32 264
6.6.3 Motor temperature monitoring with PTC or thermal contact
Description
6.6−8
C0022 C0081 C0084 C0085
Imax P R Ls
r s
[A] [kW] [W] [mH]
4.16 0.95 20.69 89.00
3.00 0.75 11.69 65.20
5.20 1.30 11.69 65.20
4.05 1.10 6.40 37.00
7.05 2.00 6.40 37.00
5.40 1.50 4.80 26.00
9.30 2.70 4.80 26.00
7.20 2.20 2.90 20.00
12.45 3.90 2.90 20.00
9.90 3.00 2.10 17.00
17.10 5.35 2.10 17.00
12.45 4.00 1.50 11.00
21.45 7.10 1.50 11.00
17.85 5.50 2.71 21.40
83.25 30.00 ˘ ˘
145.50 52.00 ˘ ˘
PTC resistors according to DIN 44081 and DIN 44082 can be connected via
the terminal inputs T1 and T2. The motor temperature is measured and
integrated into the drive monitoring.
A thermal contact (NC contact) can also be connected to T1 and T2. Lenze
three−phase AC motors provide thermal contacts as default.
When using motors equipped with PTC resistors or thermostats, we
recommend to always activate the PTC input. This prevents the motor from
being destroyed by overheating.
(
Stop!
The motor temperature monitoring may only be connected to
ƒ
T1, T2 if the cable is terminated with a PTC or thermal contact
(NC contact) on the motor side.
– An "open" cable acts like an antenna and can cause faults on
the drive controller.
– Input signals at T1, T2 are processed with a delay of 2 s.
The drive controller can only evaluate one PTC resistor! Do not
ƒ
connect several PTC resistors in series or in parallel:
– The motor temperature would be measured incorrectly.
– The motors could be destroyed by overheating.
If you operate several motors on a drive controller, use
ƒ
thermal contacts (NC contacts) for motor temperature
monitoring and connect these in series.
To achieve full motor protection, an additional temperature
ƒ
monitoring with separate evaluation must be installed.
l
Motor data
C0087 C0088 C0089 C0090 C0091
n IN f U
N r r
[rpm] [A] [Hz] [V]
2510 2.77 87 400
1400 2.00 50 400
2510 3.46 87 400
1420 2.70 50 400
2535 4.70 87 400
1415 3.60 50 400
2530 6.20 87 400
1425 4.80 50 400
2535 8.30 87 400
1415 6.60 50 400
2530 11.40 87 400
1435 8.30 50 400
2545 14.30 87 400
1425 11.90 50 400
1465 55.50 50 400
2575 97.00 87 400
C0070 C0071 C0075 C0076
cos j
V T V
pn nn pi
0.68 6 300 1.6
0.72 6 300 3.5
0.72 6 300 1.9
0.77 6 300 2.5
0.77 6 300 2
0.77 6 300 2
0.77 6 300 1
0.80 6 300 1
0.80 6 300 0.8
0.81 6 300 2.5
0.81 6 300 1.4
0.82 6 300 2
0.82 6 300 1
0.84 6 300 1.5
0.85 6 300 1
0.85 6 300 1
EDSVF9383V EN 7.1−04/2012
T
ni
2
2
3
2
2
2
2
1.5
1.5
1.5
1.8
2
2
10
2
2