table explaining the default blocking schema operates as such. However, there are
also other alternatives that cause different operation when compared to that table.
Table 630: Customized manual blocking schema
Manual
blocking
type
Enumeration Description
1 Custom disabled No Load current, blocking of lower (under) voltage or external
blocking have effect in the manual.
2 OC Load current blocking has an effect in the manual operation mode
3 UV Block lowering (under) voltage blocking has an effect in the
manual operation mode
4 OC, UV Conditions 2 and 3 together: Load current and block lowering
(under) voltage blocking have effect in the manual operation mode
5 EXT External blocking has an effect in the manual operation mode
6 OC, EXT Conditions 2 and 5 together: Load current and external blocking
have effect in the manual operation mode
7 UV, EXT Conditions 3 and 5 together: Block lowering (under) voltage and
external blocking have effect in the manual operation mode
8 OC, UV, EXT All conditions 2, 3 and 5 together: Load current and block
lowering (under) voltage and external blocking have effect in the
manual operation mode
If the Custom Man blocking setting is "Custom disabled", the blocking schema
regarding the acting operation mode "Manual" is as given in Table 631. Other
operation modes follow the default schema.
Table 631: Blocking schema for selection "Custom disabled"
Acting
operation
mode
Command Load
current
Block
lowering
voltage
Runback
raising
voltage
High
circulating
current
External
Block
Extreme
positions
Manual Raise X X
Lower X
Table 632: Blocking schema for selection "OC, UV, EXT"
Acting
operation
mode
Command Load
current
Block
lowering
voltage
Runback
raising
voltage
High
circulating
current
External
Block
Extreme
positions
Manual Raise X X X X X
Lower X X X X
1YHT530004D05 D Section 9
Control functions
615 series 747
Technical Manual
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