Installation
4-28
SHB9300CRV EN 2.0
4.2.9 Motor temperature monitoring
Selection of the feedback
system
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Temperature sensor KTY
– “Linear” temperature sensor in the motor winding (standard for Lenze motors MDXKX and MDXQX)
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Temperature sensor PTC
– PTC temperature sensor with defined tripping temperature (see DIN 44081 and DIN 44082)
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Thermal contact TKO
– Thermostat/normally closed contact
Other monitorings KTY, PTC and TKO do not offer full protection. To improve the monitoring, Lenze recommends a bimetal relay.
Alternative monitoring Comparators (CMP1 ... CMP3) monitor and a time element (TRANS1 ... TRANS4) limits the motor current (blocking current) at low
speed or if the motor is in standstill.
This function can be implemented by interconnecting the corresponding function blocks.
Reactions Different, depending on the temperature monitoring.
&
7-243
Stop!
Do not connect an external voltage to the inputs.
Lenze motors Motors of other manufacturers
MDXKX and MDXQX with thermal contact with sensor for continuous
temperature detection
with thermal contact or
PTC to DIN 44081/44082
Connection
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Resolver input X7:
–PinX7/8=PTC+
Pin X7/9 = PTC-
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Encoder input X8:
–PinX8/8=PTC+
Pin X8/5 = PTC-
Terminals T1/T2 next to the
terminalsU,V,W
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Resolver input X7:
–PinX7/8=PTC+
Pin X7/9 = PTC-
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Encoder input X8:
–PinX8/8=PTC+
Pin X8/5 = PTC-
Terminals T1/T2 next to the
terminalsU,V,W
Fault message (MONIT-)OH3 (MONIT-)OH7 (MONIT-)OH8 (MONIT-)OH3 (MONIT-)OH7 (MONIT-)OH8
Possible reactions
The corresponding monitoring and thus the following codes are preset under C0086
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Trip
(C0583 = 0)
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OFF
(C0583 = 3)
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Warning (C0584
=2)
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OFF
(C0584 = 3)
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Trip (C0585 = 0)
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War n i n g
(C0585 = 2)
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OFF (C0585 = 3)
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Tri p
(C0583 = 0)
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OFF
(C0583 = 3)
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Warning (C0584
=2)
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OFF
(C0584 = 3)
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Trip (C0585 = 0)
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War n i n g
(C0585 = 2)
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OFF (C0585 = 3)
Point of release fixed at 150 ° C adjustable
45°C ... 150°C
(C0121)
fixed, (depending on
PTC/thermal contact):
PTC: at R
J
> 1600
W
fixed at 150 °C adjustable
45°C ... 150°C
(C0121)
fixed, (depending on
PTC/thermal contact):
PTC: at R
J
> 1600
W
Notes
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Monitoring is active in the factory
setting.
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If resolver (X7) and encoder (X8) are
operated together:
– Connect PTC only to one connector
(X7 or X8)
– The PTC connection of the other
connector remains unconnected
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For further information on the
connection of the temperature sensor
can be obtained from the description
of the feedback system.
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Deactivate monitoring
via X7 or X8 under
C0583=3 and C0584=3
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Connection to DIN
44081
(see also Fig. 4-14).
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We recommend a Ziehl PTC (up to
150
C): K15301075 or a thermostat.
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Input characteristic.
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4-29
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Deactivate monitoring via X7 or X8
under C0583=3 and C0584=3
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Deactivate monitoring
via X7 or X8 under
C0583=3 and C0584=3
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Connection to DIN
44081
(see also Fig. 4-14).