MITSUBISHI ELECTRIC FR-S520 - Manual (Page 71)

62
CAUTION
1. The multi-speed settings override the main speeds (across terminals 2-5, 4-5, setting dial).
When the multi-speed settings and setting dial are used in the combined operation mode
(Pr. 79=3), the multi-speed settings have precedence.
2. The multi-speeds can also be set in the PU or external operation mode.
3. For 3-speed setting, if two or three speeds are simultaneously selected, priority is given to
the frequency setting of the lower signal.
4. Pr. 24 to Pr. 27 and Pr. 80 to Pr. 87 settings have no priority between them.
5. The parameter values can be changed during operation.
6. When using this function with the jog signal, the jog signal has precedence.
REMARKS
* When terminal assignment is changed using Pr. 60 to Pr. 63, the other functions
may be affected. Check the functions of the corresponding terminals before
making setting.
The frequency-set external terminals have the following priority:
Jog > multi-speed operation > AU (terminal 4) > terminal 2
♦ ♦ ♦ ♦
Related parameters
♦ ♦ ♦ ♦
Maximum, minimum frequency setting
⇒
Pr. 1 "maximum frequency", Pr. 2 "minimum
frequency" (refer to page 59)
Assignment of signals RH, RM, RL, REX to terminals
⇒
Pr. 60 to Pr. 63 (input terminal
function selection) (refer to page 88)
External operation mode setting
⇒
Pr. 79 "operation mode selection" (refer to page 98)
Computer link mode
⇒
Pr. 79 "operation mode selection" (refer to page 98), communication
parameter n10 "link start mode selection" (refer to page 131)
Speed command write
⇒
Communication parameter n9 "speed command write"
(refer to page 130)
2
.3.5 Acceleration/deceleration time
Used to set motor acceleration/
deceleration time.
Set a larger value for a slower speed
increase/decrease or a smaller value
for a faster speed
increase/decrease.
Running
frequency
Acceleration
time
Deceleration
time
Time
Pr.20
Out
put
f
requ
enc
y
(Hz
)
Pr.7
Pr.44 Pr.8
Pr.45
Acceleration Deceleration
Constant speed
Parameter Name
Factory
Setting
<EC version>
Setting
Range
Remarks
7 Acceleration time 5s 0 to 999s

8 Deceleration time 5s 0 to 999s

20
Acceleration/
deceleration reference
frequency
60Hz
<50Hz>
1 to 120Hz
Setting is enabled when
Pr. 30 = "1".
44
Second acceleration/
deceleration time
5s 0 to 999s
Setting is enabled when
Pr. 30 = "1".
45
Second deceleration
time
- - -
0 to 999s,
- - -
- - -:
acceleration time =
deceleration time. Setting is
enabled when
Pr. 30 = "1".