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10.2.24 Supervision of power supply module (Power error)
A power error is issued when voltage generated in DC/DC converter† is less than a threshold.
†Note: See Chapter
supply—however, the manufacture does not guarantee the AC operation—is
connected with DC/DC, the user shall set Off for the setting [CHK_POWER:Sw]
(that is, the supervision function shall be stopped). Remember that the state of the
BI circuits will be latched when Power error occurs anytime.
Error level
(i)
The error level has been set at level 3 (Minor error; default), but the user can change it with
setting [CHK_POWER:LVl]. Remember that the user needs to set On for setting
[CHK_POWER:Sw]. The manufacturer has set one (1) second to detect a failure. The error will
be reset, if the failure is solved.
Error message
(ii)
When detecting an error, the error message will be shown on the LCD screen. LED will be lit
up.
Table 10.2-47 Error messages provided by the supervisor in CHK_POWER
Message and level
Power error
Error level
Table 10.2-48 Detailed information in Hexadecimal in CHK_POWER
Display
area
Top
00000001: PWS failure
row
Middle
(No information displayed)
row
Bottom
(No information displayed)
row
Technical description; DC power and Fail terminals
Detection of the failure in the PWS
Minor error (Level 3)
Meaning of the detailed information
Left column
- 825 -
Meaning of the information
(No information displayed)
(No information displayed)
(No information displayed)
6F2T0207 (0.01)
(→p. 672). If AC
Right column
GRE200 (5,6)
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