MITSUBISHI ELECTRIC FR-S520E User Manual
Page 80
70
Explanation of functions (parameters)
2.3.4
Multi-speed operation (Pr. 4
, Pr. 5
, Pr. 6
,
Pr. 24
to Pr. 27
, Pr. 80
to Pr. 87
)
<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
to change the
setting.
In this case, press the
(
) to store the frequency. (This is also enabled in
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.
(When terminal assignment is changed using Pr. 60 to Pr. 63, the other functions may
be affected. Please make setting after confirming the function of each terminal.)
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".
Parameter
Name
Factory
Setting
Setting
Range
Remarks
4
Multi-speed setting
(high speed)
60Hz
0 to 120Hz
5
Multi-speed setting
(middle speed)
30Hz
0 to 120Hz
6
Multi-speed setting
(low speed)
10Hz
0 to 120Hz
24 to 27
Multi-speed setting
(speeds 4 to 7)
- - -
0 to 120Hz,
- - -
"- - -" = no setting. Setting
enabled when Pr. 30 = "1".
80 to 87
Multi-speed setting
(speeds 8 to 15)
- - -
0 to 120Hz,
- - -
"- - -" = no setting. Setting
enabled when Pr. 30 = "1".
REX
Speed 1
(high speed)
Speed 5
Speed 6
Speed 7
Time
ON
ON
ON
ON
RM
ON
ON
ON
RL
RH
ON
ON ON ON
O
u
tp
ut
f
req
u
enc
y
(
H
z
)
(low speed)
Speed 2
(middle speed)
Speed 4
Priority: RL>RM>RH
Speed 3
Time
Speed 9
Speed 10
Speed 11
Speed 12
Speed 13
Speed 14
Speed 15
ON ON ON ON
RH
ON ON
ON ON
RM
ON
ON
ON
ON
RL
ON
ON
ON ON ON ON ON ON
REX
O
u
tp
u
t f
req
uen
c
y
(
H
z
)
Speed 8
SET
WRITE
SET
WRITE