Mitsubishi Electronics FR-S500 Power Supply User Manual


 
67
Explanation of functions (parameters)
2
FUNCTIONS
2.3.5 Acceleration/deceleration time (Pr. 7 , Pr. 8 ,
Pr. 20 , Pr. 44 , Pr. 45 )
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 set frequency 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
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 64)
Assignment of signals RH, RM, RL, REX to terminals Pr. 60 to Pr. 63 (input terminal function
selection) (refer to page 98)
External operation mode setting Pr. 79 "operation mode selection" (refer to page 109)
Computer link mode Pr. 79 "operation mode selection" (refer to page 109), communication
parameter n10 "link startup mode selection" (refer to page 148)
Speed command source Communication parameter n9 "speed command source"
(refer to page 147)
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.
Parameter Name
Factory
Setting
Setting
Range
Remarks
7 Acceleration time 5s 0 to 999s ----------
8 Deceleration time 5s 0 to 999s ----------
20
Acceleration/
deceleration reference
frequency
60Hz 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".
Running
frequency
Acceleration
time
Deceleration
time
Time
Pr.20
Output frequency (Hz
)
Pr.7
Pr.44
Pr.8
Pr.45
Acceleration Deceleration
Constant speed