nord B 1050, Operating And Assembly Instructions Manual

Page: 59 / 112

4 Commissioning
B 1050 en-4419 59
4.7 Oil heater (Option: OH)
NOTICE!
Gear unit damage
• The oil heater must be completely submerged in the oil bath.
• The oil heater must be switched off when gear units with option VL/KL 4-6 are operated.
The oil heater is equipped with a temperature sensor and a thermostat. The heater is pre-set to a
switch-off temperature of 20°C. This means that the heater is in operation as long as an oil
temperature of 20°C has not been reached. Please contact Getriebebau NORD for other switch-off
temperatures.
The oil heater must remain functional when the gear unit is shut down in order to ensure that the oil
temperature does not drop too much.
Information
If an oil heater is used, it is recommended that the gear unit is also equipped with a PT 100 to monitor
the oil temperature.
4.8 Temperature monitoring (Option: PT100)
NOTICE!
Gear unit damage through overheating
• The customer must connect the resistance thermometer to an evaluation device. The operator is
responsible for implementing this interlock
The PT100 is an electrical resistor with which the oil temperature can be monitored. The electrical
resistance depends on the oil temperature. The PT100 must be connected to a suitable evaluation
device and the signal must be evaluated. The gear unit must be shut down if the permissible oil
temperature is exceeded.
The triggering device must be set so that the drive unit is shut down when the maximum permissible
oil temperature is reached.
For mineral oil, the maximum permissible oil temperature is 85 °C.
For synthetic oil, the maximum permissible oil temperature is 105 °C.