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Motor protection

Temperature sensors

The device can evaluate different temperature sensors. With P 0732 MON_MotorPTC the sensor fitted in the motor and the wiring variant are set (sensor cable routed in resolver or separate). In an evaluation via KTY, the shut-off threshold of the motor temperature can additionally be set.





Bild: Parameterization of temperature sensor



Parameters for function selection

P. no.

Parameter name/

Setting

Function
P 0731 MON_MotorTemp_Max Shut-off threshold for KTY
(0) Maximum sensor temperature X5 Factory setting 100 degrees
(1) Maximum sensor temperature X5 Factory setting 100 degrees
P 0732 MON_MotorPTC Selection of sensor type
(0) OFF (0) No evaluation
  KTY(1) KTY84-130°
  PTC(2) PTC to DIN 44081 with short-circuit monitoring
  TSS(3) Klixon switch
  PTC 1(4) PTC to DIN 44081 without short-circuit monitoring
  Not used(5) Not assigned
  NTC 220 (6) NTC sensor 220 kΩ2)
  NTC 1000 (7) NTC sensor 1 MΩ2)
  NTC 227 (8) NTC sensor 32 kΩ2)
(1) Connection Termination variant
  X5(0) Connection of the sensor to terminal X5
  X6/7(1) Sensor connection is routed in encoder cable
  X5_X6/7(2) Use of both inputs possible
(2) Off(0) No evaluation
  KTY(1) KTY84-130°
  PTC(2) PTC to DIN 44081 with short-circuit monitoring
  TSS(3) Klixon switch
  PTC 1(4) PTC to DIN 44081 without short-circuit monitoring
  Not used(5) Not assigned
  NTC 220 (6) NTC sensor 220 kΩ1)
  NTC 1000 (7) NTC sensor 1 MΩ1)
  NTC 227 (8) NTC sensor 32 kΩ1)
P 0733 MON_MotorI2t I1t characteristic setting
(0) Inom [%](0) Rated current of the motor
(1) I0 [%](1) First current interpolation point of motor protection characteristic: Maximum permissible standstill current
(2) I1 [%](2) Second current interpolation point of motor protection characteristic referred to maximum characteristic current
(3) F1 [Hz](3) First frequency interpolation point of motor protection characteristic
(4) FN / F(f) [Hz] (4) Rated frequency
(5) Imax [%](5) Max. overload current referred to rated motor current
(6) Time [sec](6) Time for which the maximum current may be connected
(7) Ttherm Set thermal time constant in seconds
P 0735 MON_MotorI2tType Motor protection mode
(-1) Off(-1) Protection disabled
(0) FREQU(0) Motor frequency-dependent evaluation i(f), default setting
(1) THERM(1) Evaluation with thermal time constant iTthThe thermal time constant is set via parameter P 0733.7 in [s]. The shut-off threshold based on measurement tolerances is 110% of the nominal value.

Tabelle: Ixt setting



NOTE:

With a ServoOne junior the temperature sensor cable can be connected to both X6 and X7.

1) Does not apply to the ServoOne junior