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39 (104)
Revision 4
6.3.4
Power supply
DANGER!
Electric shock hazard
Before connecting the device to a power supply, make sure that the power supply is
isolated or disconnected. Electric shock from a connected power supply cable can result
in serious injury or death.
When connecting the device to a power supply, wear protective glasses, protective
clothing and insulating rubber gloves.
The device can be connected to a 24 V DC power supply. Note the polarity of the power input. Only use
NEC Class 2 or equivalent power supply.
If connected with incorrect polarity, the device does not start up. However, connecting
the power supply with incorrect polarity does not damage the device.
Follow all applicable local regulations when selecting the circuit breakers that protect
the cables.
Figure 22: Power supply input on the main board
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