Mitsubishi Electric FR-S520E Series Instruction Manual page 85

2.3.4 Multi-speed operation (Pr. 4
Pr. 24
Used to switch between the predetermined running speeds.
Any speed can be selected by merely switching on/off the corresponding
contact signals (RH, RM, RL, REX signals).
By using these functions with Pr. 1 "maximum frequency" and Pr. 2 "minimum
frequency", up to 17 speeds can be set.
This function is valid in the external operation mode or in the combined
operation mode which is available when Pr. 79 = "3" or "4".
Speed 1
(high speed)
Speed 2
(middle speed)
Speed 3
(low speed)
ON
RH
ON
RM
ON
RL
Priority: RL>RM>RH
REX
Parameter Name
Multi-speed setting
4
(high speed)
Multi-speed setting
5
(middle speed)
Multi-speed setting
6
(low speed)
Multi-speed setting
24 to 27
(speeds 4 to 7)
Multi-speed setting
80 to 87
(speeds 8 to 15)
<Setting>
•Set the running frequencies in the corresponding parameters.
Each speed (frequency) can be set as desired between 0 and 120Hz during inverter
operation.
When the parameter of any multi-speed setting is read, turn the
setting.
In this case, press the
the external mode.)
The setting is reflected by pressing the
•Assign the terminals used for signals RH, RM, RL and REX using Pr. 60 to Pr. 63.
(Changing the terminal assignment using Pr. 60 to Pr. 63 (input terminal function
selection) may affect the other functions. Check the functions of the corresponding
terminals before making setting.)
to Pr. 27
Speed 5
Speed 6
Speed 4
Speed 7
Time
ON ON ON
ON ON ON
ON ON
Factory
Setting
60Hz
30Hz
10Hz
- - -
- - -
SET
( ) to store the frequency. (This is also enabled in
WRITE
Explanation of functions (parameters)
, Pr. 5
, Pr. 80 to Pr. 87
Speed 10
Speed 11
Speed 9
Speed 8
RH
ON ON
RM
ON ON
RL
ON ON ON ON ON ON ON ON
REX
Setting
Range
0 to 120Hz
0 to 120Hz
0 to 120Hz
0 to 120Hz, "- - -" = no setting. Setting
- - - enabled when Pr. 30 = "1".
0 to 120Hz, "- - -" = no setting. Setting
- - - enabled when Pr. 30 = "1".
SET
( ).
WRITE
75
, Pr. 6 ,
)
Speed 12
Speed 13
Speed 14
Speed 15
Time
ON ON ON ON
ON ON
ON ON
Remarks
⎯⎯
⎯⎯
⎯⎯
to change the
2