B&R Industries Provit 5000, Руководство пользователя, Страница: 97 / 400

96 Provit 5000 User’s Manual
Controllers • System Unit with Socket 7 (ZIF)
There are four status LEDs built into the front of the Provit display unit 5D560x.0x. They have
the same functions as those in the controller.
7.16 Battery
The battery compartment is accessible after opening the housing:
The lithium battery (3 V, 950 mAh) keeps the CMOS memory and real-time clock running when
the supply voltage for the IPC has been switched off. The buffer duration of the battery is at least
4 years (at 50 °C, 8.5 mA current requirements of the supplied components and a self discharge
of 40%).
The battery status can be monitored by the maintenance controller using software.
LED Function
Power Supply voltage on the power supply is OK
User Can be programmed by the user (see the section "MTC Function Libraries")
HDD Signalized activity of the memory medium in the IDE slot.
Temp Indicates over-temperature (see the "Temperature Monitoring with Fan Regulation" section)
Table 65: Status LEDs
Figure 49: Battery compartment