Event name Step-out Detection/Magnetic Pole Position Detec-
tion Error during Startup
Event code 38A00000 hex
Meaning Step-out of the PM motor was detected. Magnetic pole position detection failed at startup.
Source EtherCAT Master Function Mod-
ule
Source details Slave Detection tim-
ing
Continuously
Error attrib-
utes
Level Minor fault Recovery Error reset Log category System log
Effects User program Continues. Operation Motor stops.
Indicators EtherCAT NET RUN EtherCAT NET ERR EtherCAT LINK/ACT
--- --- ---
System-de-
fined varia-
bles
Variable Data type Name
None None None
Cause and
correction
Assumed cause Correction Prevention
(1) The characteristics of the mo-
tor are dif
ferent.
Confirm that the settings of
1st
Base Frequency (3004-05 hex),
1st rated voltage at base
frequency (3004-06 hex), and
motor parameters (3007-02 to 04
hex, 3007-3D to 41 hex) are con-
sistent with the motor constants.
→ Perform auto-tuning.
Set the motor constant parame-
ters according to the motor char-
acteristics and perform auto-tun-
ing.
(2) The magnetic pole position
detection method is not appropri-
ate.
Confirm that the magnetic pole
position detection method is suit-
able for the motor type.
→ Set 1st PM motor drive
magnetic pole position
detection mode (3007-1F hex)
according to the motor type.
Set
1st PM motor drive
magnetic pole position
detection mode (3007-1F hex)
appropriately.
(3) The value of 1st Starting
frequency 1 Holding time
(3004-19 hex) is insufficient.
Check if
1st Starting frequency
1 Holding time (3004-19 hex) is
set optimally when 1st PM
motor drive magnetic pole
position detection mode
(3007-1F hex) is set to 0 or 3.
→ Set a time that allows for at
least one rotation of the motor.
F24* ≥ P01* / 2 / F23* (P01*:
Number of poles, F23*: Starting
frequency)
F24 = 1st Starting frequency 1
Holding time (3004-19 hex)
F23 = 1st Starting Frequency
(3004-18 hex)
P01 = 1st Motor Pole Number
(3007-02 hex)
Set 1st Starting frequency 1
Holding time (3004-19 hex) to
an appropriate value.
Appendices
A-265
M1 Series EtherCAT Type User’s Manual (I670)
A-5 Sysmac Error Status Codes
A
A-5-2 Error Descriptions
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