Installation
32
12/03 AWB-C27-1293GB
Replacing the battery The battery is used for maintaining the following data
in the event of a power supply failure:
Real-time clock (date and time)
Events list
Recipes
The battery life is about one year. The MI4 units
indicate a low battery charge level in several ways:
Flashing red front plate “FAULT”, “FLT” or
LEDs (depending on device model)
Display in the system menu in the “Battery” field
(BATTERY OK or LOW)
Indication in the control panel status word, bit S 6
(bit S 6 = signal 1)
Replace the battery immediately if any of these
displays is activated. Battery type: Duracell DL 2430
(ZB4-280-BT1, Order No. 203515).
Replacing the battery of the MI4
왘 Switch off the power supply to the device.
왘 Undo the four screws at the back of the
expansion housing.
왘 Remove the housing.
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The MI4-101-KC1, MI4-100-KC1, MI4-101-KE1,
MI4-100-KE1, MI4-110-KC1 and MI4-110-KG2
units are not battery backed-up.
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An internal capacitor will maintain the power
supply for 30 seconds while the battery is being
replaced. If this time is exceeded, data will be
lost.