Mitsubishi Electric Freqrol-A100 Instruction Manual page 83

Pr. 3
-
Pr. 6
To set multiple speeds
0
Pr. 3 "base frequency", Pr.
19
"base frequency voltage"
Allows the base frequency (reference frequency at the rated
motor torque) to be set as appropriate between
0
and 120Hz
according to the motor rating.
in Pr. 19 makes the maximum
"8888" in Pr. 19, the maximum
is output voltage 95% of the
0
Pr. 4 "3-speed setting (high speed)", Pr. 5 "3-speed
setting (middle speed)", Pr. 6 "3-speed setting (low
speed)", Pr. 24 "multi-speed setting (speed
4)",
Pr. 25
"multi-speed setting (speed 5)", Pr. 26 "multi-speed
setting (speed 6)", Pr. 27 "multi-speed setting (speed 7)"
Note: 1. Set the base frequency to
60Hz for use of an inverter-
dedicated motor (constant-
torque motor).
Allows any speed to be selected by switching the external
contact signal (across terminals RHIRMIRL and SD).
base
frequency setting range
Each speed (frequency) may be specified as appropriate bet-
ween 0 to 120Hz during inverter operation. The speed may also
be set using the [A] and [V] keys. (On releasing the [A] and
[V] keys, the set frequency is stored, that is the [WRITE] key
need not be pressed.)
By using these functions with jog frequency (Pr.
15),
maximum
frequency (Pr. 1) and minimum frequency (Pr. 2), up to 10
speeds can be set.
Speed l
Speed 5
Note: 1. Speeds 4 to 7 are not selected if the setting is "9999" (factory
setting).
2. These speeds have priority over the main speed (across terminals
2-5, 4-5).
3.
This setting may also be made during P U operation or external
operation.
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4. With 3-speed setting, if two or three speeds are simultaneously
selected, priority is given to the frequency of lower signal.
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