SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.
SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.
SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.
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Chapter 4 Explanation of Functions<br />
Item Function code Data or range of data Description<br />
33<br />
LOG1: Logical operation result 1<br />
(C142, C143, and C144)<br />
Terminal function<br />
34<br />
LOG2: Logical operation result 2<br />
(C145, C146, and C147)<br />
LOG3: Logical operation result 3<br />
35<br />
C021 to C025<br />
(C148, C149, and C150)<br />
C026<br />
LOG4: Logical operation result 4<br />
36<br />
(C151, C152, and C153)<br />
Alarm relay<br />
LOG5: Logical operation result 5<br />
37<br />
terminal function<br />
(C154, C155, and C156)<br />
38<br />
LOG6: Logical operation result 6<br />
(C157, C158, and C159)<br />
Selection of "00" to "56" from the Selection of operation-target 1<br />
Logical output C142/C145/C148/<br />
data (except LOG1 to LOG6) output<br />
signal selection 1 C151/C154/C157<br />
Logical output<br />
signal selection 2<br />
Logical output<br />
signal operator<br />
selection<br />
C143/C146/C149/<br />
C152/C155/C158<br />
C144/C147/C150/<br />
C153/C156/C159<br />
4.2.67 Capacitor life warning signal (WAC)<br />
to intelligent output terminals<br />
Selection of "00" to "56" from the<br />
data (except LOG1 to LOG6) output<br />
to intelligent output terminals<br />
The inverter checks the operating life of the capacitors on the<br />
internal circuit boards on the basis of the internal temperature<br />
and cumulative power-on time.<br />
00 AND<br />
01 OR<br />
02 XOR<br />
Selection of operation-target 2<br />
Related code<br />
C021 to C025: Terminal [11] to [15] functions<br />
C026: Alarm relay terminal function<br />
You can monitor the state of the capacitor life warning (WAC) signal by using the life-check monitoring<br />
function (d022).<br />
If the WAC signal is output, you are recommended to replace the main circuit and logic circuit boards.<br />
Item Function code Data or range of data Description<br />
Terminal function<br />
C021 to C025<br />
WAC: Capacitor life warning signal<br />
39<br />
Alarm relay terminal function<br />
C026<br />
(for on-board capacitors)<br />
4.2.68 Communication line disconnection signal (NDc)<br />
This signal function is enabled only when ModBus-RTU has been Related code<br />
selected for the RS485 communication.<br />
C021 to C025: Terminal [11] to [15] functions<br />
C026: Alarm relay terminal function<br />
If a reception timeout occurs, the inverter continues to output the<br />
C077: Communication trip time<br />
communication line disconnection signal until it receives the next<br />
data.<br />
Specify the limit time for reception timeout by setting the communication trip time (C077).<br />
For details, see Section 4.4, "Communication Functions."<br />
External control equipment<br />
Inverter<br />
Monitoring timer<br />
Communication line<br />
disconnection signal (NDc)<br />
Communication trip time<br />
(C077)<br />
Item Function code Data or range of data Description<br />
Terminal function<br />
C021 to C025<br />
NDc: Communication line<br />
32<br />
Alarm relay terminal function<br />
C026<br />
disconnection signal<br />
Setting of the limit time for<br />
Communication trip time C077 0.00 to 99.99 (s)<br />
reception timeout<br />
4 - 68
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