PBV20N2 PBV20N2 Service Service ManualManual
8.6.2 8.6.2 Key Key switchswitch
TypeType
Key switchKey switch
Contact ratingContact rating
24 Vdc / 5 A24 Vdc / 5 A
Electrical wiringElectrical wiring
Plug-in connector 6 polesPlug-in connector 6 poles
Switching outputSwitching output
3 x NO3 x NO
Spare partSpare part
RL608414RL608414
Figure 69. Key switchFigure 69. Key switch
Key switch functionality check:Key switch functionality check:
Measure at the ohms area that the Measure at the ohms area that the contacts inside the key switch are contacts inside the key switch are not stuck together.not stuck together.
When the key switch is in the 0 position, the ohms value is ~0When the key switch is in the 0 position, the ohms value is ~0 Ω between the pins 6Ω between the pins 6-1-1
and 4-5.and 4-5.
When the key switch is When the key switch is turned clockwise once, the ohms value is ~0turned clockwise once, the ohms value is ~0 Ω between the pinsΩ between the pins
6-1, 4-5, 6-4, 6-3, 1-4 and 1-3.6-1, 4-5, 6-4, 6-3, 1-4 and 1-3.
When the key switch is turned clockwise for the second time, the ohms value is ~0When the key switch is turned clockwise for the second time, the ohms value is ~0 ΩΩ
between the pins 6-1, 4-5, 6-5, 6-2, between the pins 6-1, 4-5, 6-5, 6-2, 1-5 and 1-2.1-5 and 1-2.
If the contacts are If the contacts are stuck together or broken, replace the key switch.stuck together or broken, replace the key switch.
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