Hitachi SJ300-EL Series, Instruction Manual Supplement

Page: 45 / 52

Appendix A - Auto-tuning Procedure
Performing the Auto-tuning Procedure
fter the preparations above are complete, perform the auto-tuning procedure by following the A
. Set H001 = 01 (auto-tuning without motor rotation, or STATIC), or H001 = 02 (auto-tuning
2. urn the RUN command ON. The inverter will then automatically sequence through the
. First AC excitation (motor does not rotate)
ote: For STATIC auto-tuning (H001 = 01), the next two steps (‘d’ and ‘e’) are skipped.
d. V/F running - this step occurs ONLY if H001 = 02 (motor accelerates up to 80% of base
e. - this step occurs ONLY if H001 = 02 (motor accelerates up to x% of the
100s
sult of the auto-tuning as follows:
NOTE: During the AC and DC motor excitation steps above, you may notice that the motor
the auto-tuning procedure is successful, the inverter updates the motor characteristic
ow return to Page 41, Step 3
steps:
1
with motor rotation, or DYNAMIC).
T
following actions:
a
b. Second AC excitation (motor does not rotate)
c. First DC excitation (motor does not rotate)
N
frequency)
SLV running
base frequency), where “x” varies with time T during this step:
x = 40% when T < 50s
x = 20% when 50s < T <
x = 10% when T => 100s
f. Second DC excitation
g. Displays the pass/fail re
makes a slight humming or whistling sound. This sound is normal.
If
parameters and indicates
normal termination of the procedure as shown. Pressing any key on
the keypad will clear the result from the display.
N
.
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