Function Applications
-514-
4.5.6 Cooling Fan Control
Para. No. Name
Default
Value Range Description
F8-52
Cooling fan control
0
0: Forward running
during drive running
Single-axis drive unit and axis 1 of
dual-axis drive unit:
F8-52 = 0: The fan works when the
AC drive is running. When the AC
drive stops, the fan works if the
heatsink temperature is higher than
42°C and stops if the heatsink
temperature is lower than 42°C.
F8-52 = 1: The fan keeps rotating in
the forward direction after power-
on.
F8-52 = 2: The fan keeps working
after power-on. It rotates in the
forward direction for 600s and then
in the reverse direction for 200s, and
repeats the cycle.
F8-52 = 3: The fan works during
drive running. When the AC drive is
running, the fan rotates in the
forward direction for 600s and then
in the reverse direction for 200s, and
repeats the cycle. When the AC drive
stops, if the heatsink temperature is
higher than 42°C, the fan rotates in
the forward direction for 600s and
then in the reverse direction for
200s, and repeats the cycle; if the
heatsink temperature is lower than
42°C, the fan stops.
Axis 2 of dual-axis drive unit:
F8-52 is not editable. The default
value is 0, that is, the fan rotates in
the forward direction when axis 2 of
the dual-axis drive unit is running.
1: Forward running
continuously
2: Forward and
reverse running
continuously
3: Forward and
reverse running
during drive running
4.6 Faults and Protection
4.6.1 Startup Protection
Set F8-21 (F8-21 = 1) to enable the startup protection of the AC drive. This helps to avoid unexpected
motor running at power-on or fault reset.
Startup protection can be used in the following scenarios:
● If the running command is valid when the AC drive is powered on (for example, an input terminal is
ON before power-on), the AC drive does not respond to the command. The AC drive responds only
after the running command is canceled and becomes valid again.
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