Hitachi SJ Series, User Manual

Page: 711 / 786

21-40
Chapter 21 Technical Notes

STO monitor [dA-45] and status indication on the upper
right of the operator keypad

Error indication

Status transition
STO monitor [dA-45]
data display
contents
(Status indication on
the upper right of the
operator keypad)
Condition Description
00:Non (No indication) <1>
Operation is permitted on both ST1 and ST2 (contact point is ON) and inverter
output is available.
01:P-1A P-1A <2>
When operation is permitted on both ST1 and ST2 (contact point is ON), only
ST2 changes to STO (contact point is OFF). Then, operation is permitted (contact
point is ON) on ST1 again for the entire STO switch allowable time [bd-02].
02:P-2A P-2A <3>
When operation is permitted on both ST1 and ST2 (contact point is ON), only
ST1 changes to STO (contact point is OFF). Then, operation is permitted (contact
point is ON) on ST1 again for the entire STO switch allowable time [bd-02].
03:P-1b P-1b <5>
(1) The P-1A or P-1b status is kept until the STO switch allowable time [bd-02]
has elapsed.
(2) When operation is permitted on both ST1 and ST2 (contact point is ON), only
ST2 changes to STO (contact point is OFF), and then the operation is
permitted (contact point is ON) again.
04:P-2b P-2b <6>
(1) The P-12 or P-2b status is kept until the STO switch allowable time [bd-02]
has elapsed.
(2) When operation is permitted on both ST1 and ST2 (contact point is ON), only
ST1 changes to STO (contact point is OFF), and then the operation is
permitted (contact point is ON) again.
05:P-1C P-1C <7>
From the status that both ST1 and ST2 is STO (contact point is ON), operation is
permitted (contact point is ON) only on ST2. Then, ST1 is at STO (contact point is
OFF) again for the entire STO switch allowable time [bd-02].
06:P-2C P-2C <8>
From the status that both ST1 and ST2 is STO (contact point is ON), operation is
permitted (contact point is ON) only on ST2. Then, ST1 is at STO (contact point is
OFF) again for the entire STO switch allowable time [bd-02].
07:STO STO <4> Both ST1 and ST2 are at STO (contact point is OFF).
Item Error Condition Description
STO shut-off error [E090] <9> If [bd-01] is set to 02, the error occurs when both ST1 and ST2 are input.
STO internal error [E091] <10> The error occurs when internal failure is found. It cannot be canceled by reset operation.
STP path 1 error [E092] <11> If [bd-04] is set to 02, the error occurs at [P-1b].
STP path 2 error [E093] <12> If [bd-04] is set to 02, the error occurs at [P-2b].
00:Non
03:P-1b
02:P-2A
04:P-2b
[E091]
Not recover
01:P-1A
05:P-1C
06:P-2C
07:STO
[E090]
[E092]
[E093]
<1>
<2>
<3>
<4>
<5>
<6>
<7>
<8>
<5>
<6>
<4>
<1>
<4>
<4>
<9>
<10>
<11>
<12>