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authorKevin O'Connor <kevin@koconnor.net>2018-04-20 13:15:03 -0400
committerKevin O'Connor <kevin@koconnor.net>2018-04-20 13:15:03 -0400
commit85e6cd865c7e6e053971cac456155e5fbd97ccd6 (patch)
tree6f30ac3573561d58cb87a2ee0fe8847e705b149c /config
parent48e9fa04e78e4c57fbd558281170d16ab357377f (diff)
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fan: Scale fan speed requests between 0 and max_power
If the fan's max power is limited by the config, then scale speed requests between 0 and max_power. This makes more sense for typical g-code fan speeds. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Diffstat (limited to 'config')
-rw-r--r--config/example-extras.cfg4
-rw-r--r--config/example.cfg5
2 files changed, 6 insertions, 3 deletions
diff --git a/config/example-extras.cfg b/config/example-extras.cfg
index c1370eda..8a26f50c 100644
--- a/config/example-extras.cfg
+++ b/config/example-extras.cfg
@@ -205,10 +205,10 @@
#heater_temp: 50.0
# A temperature (in Celsius) that the heater must drop below before
# the fan is disabled. The default is 50 Celsius.
-#fan_speed:
+#fan_speed: 1.0
# The fan speed (expressed as a value from 0.0 to 1.0) that the fan
# will be set to when its associated heater is enabled. The default
-# is max_power.
+# is 1.0
# Additional micro-controllers (one may define any number of sections
diff --git a/config/example.cfg b/config/example.cfg
index aacd4c99..f4c7029b 100644
--- a/config/example.cfg
+++ b/config/example.cfg
@@ -224,7 +224,10 @@ pin: ar9
# enabled for extended periods, while a value of 0.5 would allow the
# pin to be enabled for no more than half the time. This setting may
# be used to limit the total power output (over extended periods) to
-# the fan. The default is 1.0.
+# the fan. If this value is less than 1.0 then fan speed requests
+# will be scaled between zero and max_power (for example, if
+# max_power is .9 and a fan speed of 80% is requested then the fan
+# power will be set to 72%). The default is 1.0.
#cycle_time: 0.010
# The amount of time (in seconds) for each PWM power cycle to the
# fan. It is recommended this be 10 milliseconds or greater when