Hitachi SJ Series, User Manual

Page: 588 / 786

16-7
Chapter 16 ProDriveNext / EzSQ
16.4Trace Functions
16.4.1 Trace function specification
• The trace function is a function for obtaining and
accumulating the inverter monitor data under the set
conditions.
• With “ProDriveNext”, accumulated data
(accumulated trace data) can be uploaded, shown
graphically, and stored.

Specifications
16.4.2 Trace function use procedure

Trace function use procedure
*1) Note that the accumulated trace data will be erased if
the inverter power supply is shut off.
*2) Do not interrupt tracing while it is being executed
because some accumulated trace data may be
remained.
• For more details, see the instruction manual of
“ProDriveNext”.
*3)
During data readout, trace data may be missing. In such
a case, carry out readout again.
Item Description
Number of trace data
Monitor data: Max. 8 data
Signal: Max. 8 signals (Select from the Input/output terminal function.)
Accumulated trace data
size 8kbytes
Sampling time (interval) Select from 0.2 ms, 0.5 ms, 1 ms, 2 ms, 5 ms, 10 ms, 50 ms,100 ms, 500 ms, and 1000 ms.
Number of sampling points
It varies depending on the number of trace data, the number of signals, and data size of
parameters to be traced.
Ex. 953 sampling points
if “the number of trace data is 4; the number of signals is 1; and the
data size of them is respectively 2 bytes”.
Trace starting method
“ProDriveNext”, parameter setting, input terminal (DTR (data trace starting signal))
Trigger condition
2 conditions (4 conditions in total by the combination of them)
Select either Trip or Trace data (monitor data, signal).
Trigger level and trigger point can be set.
Others
• Trace function state signals ([WFT] is ON in a trigger stand-by state, and [TRA] is ON
during tracing)
• To graphically show or store accumulated trace data, “ProDriveNext” is required.
No. Description Remarks
1 Enable the trace function. (Set [Ud-01] to 01(Enable).)
See "16.4.3 Trace
function related
parameters".
(These items can
also be set with
“ProDriveNext”.)
2 Set the number of data ([Ud-03]) and signals ([Ud-04]) to be traced.
3 Select parameters to be traced. ([Ud-10]~[Ud-17])
4
Select whether a signal to be traced is of input terminal function or output terminal function.
([Ud-20], [Ud-23], [Ud-26], [Ud-29], [Ud-32], [Ud-35], [Ud-38], [Ud-41])
Then, select a signal (terminal function) to be traced.
(Input: [Ud-21], [Ud-24], [Ud-27], [Ud-30], [Ud-33], [Ud-36], [Ud-39], [Ud-42])
(Output: [Ud-22], [Ud-25], [Ud-28], [Ud-31], [Ud-34], [Ud-37], [Ud-40], [Ud-43])
5 Select and set trigger conditions. ([Ud-50]~[Ud-59])
6 Select sampling time (interval). ([Ud-60])
7
Start tracing. (Set [Ud-02] to 01(Start).)
(This item can also be set with the input terminal function DTR or “ProDriveNext”.)
8
The inverter enters the trace stop state as tracing is completed. *1) *2)
(Wait until the inverter finishes tracing.) When it’s done, [Ud-02] will be changed to 00 (Stop).)
9
Read out, show graphically, and store the accumulated trace data, using “ProDriveNext”. *3) “ProDriveNext” is
required.
A
!
!