Description of Warning Codes
‑18‑
Cause:
The single‑channel output pulse frequency exceeds the frequency upper limit
allowed by the hardware (4 MHz) when pulse output is used (H05.38 = 0/1/2).
Cause
Confirming Method
Solution
The MCU detects excessive
pulse increment fed back by
FPGA.
When H05.38 is set to 0
(encoder frequency‑division
output) or 2 (2nd encoder
frequency‑division output),
check whether the output
pulse frequency
corresponding to the motor
speed upon fault exceeds
the limit.
Output pulse frequency (Hz)
= Motor speed (rpm)/60 x
H05.17
Decrease the value of H05.17
(encoder frequency‑division
pulses) to allow the output
pulse frequency, within the
speed range required by the
machine, to drop below the
frequency upper limit
allowed by the hardware.
The input pulse frequency
exceeds 2 MHz or
interference exists in the
pulse input pins when
H05.38 is set to 1 (Reference
pulse synchronous output).
● Low‑speed pulse input
pins: open‑collector input
terminals: PULLHI, PULSE+,
PULSE‑, SIGN+, SIGN‑;
maximum pulse frequency:
200 kpps.
● High‑speed pulse input
pins: differential input
terminals: HPULSE+,
HPULSE‑, HSIGN+, HSIGN‑;
maximum pulse frequency:
8 Mpps.
Decrease the input pulse
frequency to a value within
the frequency upper limit
allowed by hardware.
Note:
In this case, if you do not
modify the electronic gear
ratio, the motor speed will
be reduced.
If the input pulse frequency
is high but is still within the
frequency upper limit
allowed by the hardware,
take anti‑interference
measures (use STP cable for
pulse input and set pin filter
parameter H0A.24 or
H0A.30). This is to prevent
false warnings caused by
interference pulses
superimposed to actual
pulse references.
● E600.0: Inertia auto‑tuning failure
Cause:
Vibration cannot be suppressed. You can set notch parameters (H09.12...H09.23)
manually to suppress vibration.
The auto‑tuned values fluctuate dramatically. Increase the maximum operating
speed, reduce the acceleration/deceleration time, and shorten the stroke of the
lead screw during ETune operation.