GT10/GT30

8.1 The Internal Secondary Battery (GT10)

 

 

8.1The Internal Secondary Battery (GT10)

Internal GT10 data is backed up in the following ways:

Screen data

Stored in the F–ROM. (No battery backup required.)

GT10 configuration data

 

Hold PLC Device data

Stored in the SRAM. (Backed up by the internal secondary

Clock data

battery, which is charged when power is supplied to the GT10.)

GT internal device hold data

 

 

 

The No. 1 operation mode setting switch on the back of the GT10 is used to specify whether or not the contents of the SRAM are backed up.

Operation mode setting switches

Switch no.

Function

OFF

ON

 

 

 

 

 

 

 

MODE

1

SRAM backup using sec-

No

Yes

 

 

 

 

 

 

ondary battery

 

 

1 2 3 4

 

 

 

 

ON

2

Inhibits system menu shift

Shift possible

Shift inhibited

 

 

 

 

 

 

 

 

OFF

3

Usage inhibited

Should always be in the OFF

 

 

 

 

4

 

position when unit is used

(status when shipped)

 

 

 

 

 

 

 

In order to prevent excessive discharging of the internal secondary battery when the unit is shipped from the factory, the No. 1 operation mode setting switch is set to the “OFF” position.

Before turning on the power supply, always set the No. 1 operation mode setting switch on the back of the GT10 to the “ON” position.

In order to back up the various types of data stored in the SRAM, as described above, the No. 1 operation mode setting switch on the back of the GT10 should always be set to the “ON” position before turning on the power supply.

GT10

EXPLANATION

* Secondary Battery Performance

Secondary battery performance, when operating at a normal temperature of 25° C, a normal humidity of 65% RH, and a voltage of 24V DC, is as follows:

Item Details

Backup time Min. 10 days when fully charged

Charge time If the power has been off for 24 hours, it takes approx. 15 min. to fully charge. If the power has been off for 10 days, it takes approx. 2 hrs. to fully charge.

Service life

Approx. 7 years

CAUTION

1)Frequent long periods with the power off will decrease the service life of the secondary battery.

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