Lenze i950 Series, Manual

Page: 296 / 500

13.9.2 Motor temperature monitoring
In order to record and monitor the motor temperature, a PTC thermistor (single sensor
according to DIN 44081 or triple sensor according to DIN 44082) or thermal contact (normally-
closed contact) can be connected to the terminals T1 and T2. This measure helps to prevent
the motor from being destroyed by overheating.
Preconditions
•
The inverter can only evaluate one PTC thermistor! Do not connect several PTC thermistors
in series or parallel.
•
If several motors are actuated on one inverter, thermal contacts (NC contacts) connected
in series are to be used.
•
To achieve full motor protection, an additional temperature monitoring function with a
separate evaluation must be installed.
•
By default, a wire jumper is installed between terminals X109/T1 and X109/T2, which must
be removed when the PTC thermistor or thermal contact is connected.
Details
If 1.6 kΩ < R < 4 kΩ at terminals X109/T1 and X109/T2, the monitoring function will be activa-
ted; see functional test below.
•
If the monitoring function is activated, the response set in 0x2D49:002 will be effected.
•
The setting 0x2D49:002 = 0 deactivates the monitoring function.
If a suitable motor temperature sensor is connected to the terminals X109/T1
and X109/T2 and the response in 0x2D49:002 is set to "Fault [3]", the response
of the motor overload monitoring may be set other than "Fault [3]" in .
4
Motor overload monitoring (i²*t)
^
288
Functional test
Connect a fixed resistor to the PTC input:
•
R > 4 kΩ : the monitoring function must be activated.
•
R < 1 kΩ : the monitoring function must not be activated.
Parameter
Address Name / setting range / [default setting] Info
0x2D48:002 PTC temperature sensor monitoring: Error response Setting of a response for PTC temperature monitoring.
Associated error code:
•
17281 | 0x4381 - RANLI_CIMES_1000_21212
0 No response
1 Fault > CiA402
2 Warning
0x2D49:001 Motor temperature monitoring: Temperature sensor
type Selection of the motor temperature sensor used.
0 KTY83-110
1 KTY83-110 + 2 x PTC 150 °C in series
2 KTY84-130
3 Specific characteristic
4
5 PT1000
Selection of the motor temperature sensor used.
6 2 x PTC 150 °C in series
0x2D49:002 Motor temperature monitoring: Response Selection of the response to the triggering of the motor temperature
monitoring.
Associated error codes:
•
17168 | 0x4310 - Motor temperature error
•
17280 | 0x4380 - RANLI_CIMES_1000_02502
•
17282 | 0x4382 - RANLI_CIMES_1000_21218
•
17283 | 0x4383 - RANLI_CIMES_1000_21219
0 No response
1 Fault > CiA402
Configuring the motor control
Motor protection
Motor temperature monitoring
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