Mitsubishi Electric FR-A700-A1, Instruction Manual, Page: 56 / 86

53
Regeneration avoidance function
(Pr. 882)
3
DAN
CE
R C
O
N
T
RO
L/
W
IND
IN
G
DI
AM
ETER
C
O
M
P
E
N
SA
TI
ON
3.11 Regeneration avoidance function (Pr. 882)
This function detects a regeneration status and increases the frequency to avoid the regeneration status.
Setting Pr. 882 = "1 to 3" enables the regeneration avoidance function.
Setting the parameter to "3" enables the regeneration avoidance function during normal operation, and disables the
function during deceleration-to-a-stop operation initiated by turn-OFF of the start signal. In this way, the machine can be
stopped quickly by using the regenerative braking equipment.
3.12 Operation command source and speed command source (Pr. 338, Pr. 339)
In the Network operation mode, commands from the external terminals and network are as listed below.
(Different signals can be assigned with the input terminal function selection. )
Parameter
Number
Name
Setting
Range
Increments
Initial
Value
Remarks
882
Regeneration avoidance
operation selection
0 to 3 1 0
0: Regeneration avoidance function disabled
1: Always enabled
2: Enabled only at constant speed operation
3: Enabled only while start signal is ON
Parameter
Number
Name
Setting
Range
Increments
Initial
Value
Remarks
338
Communication operation
command source
0, 1 1 0
0: Command source is NET
1: Command source is external terminal
339
Communication speed
command source
0 to 2 1 0
0: Command source is NET
1: Command source is external terminal 1
2: Command source is external terminal 2
Operation
Location
Selection
Pr. 338 Communication operation command source 0: NET 1: External
Remarks
Pr. 339 Communication speed command source 0 : NET
1:
External 2:
External
0 : NET
1:
External 2:
External
Fixed
function
(terminal-
equivalent
function) Running frequency from communication
NET — NET NET — NET
Terminal 2
— External — — External —
Terminal 4
— External — External
Terminal 1 (dancer roll position detection)
External
*
Sel
e
ct
iv
e f
u
nct
io
n
P
r.1
78
to
P
r.
18
9
se
tt
in
g
0 RL
Low-speed operation command/remote
setting clear
NET External NET External
Pr.59 = "0"
(Multi-speed)
Pr.59 = "1,2"
(Remote)
1 RM
Middle-speed operation command/
remote set deceleration
NET External NET External
2 RH
High-speed operation command/
remote set acceleration
NET External NET External
3 RT Second function selection
NET External
4 AU Current input selection
— Combined — Combined
5 JOG Jog operation selection
— External
6 CS
Selection of automatic restart after
instantaneous power failure
External
7 OH External thermal relay input
External
8 REX 15-speed selection
NET External NET External
Pr.59
="0"
(Multi-speed)
9 X9 Third function selection
NET External
10 X10 Inverter run enable signal
External
11 X11
FR-HC connection, instantaneous
power failure detection
External
12 X12 PU operation external interlock External
13 X13 External DC injection brake operation start NET External
14 X14 PID control valid terminal NET External NET External
16 X16 PU-External operation switchover External
17 X17
Load pattern selection forward rotation
reverse rotation boost
NET External
18 X18 V/F switchover NET External
20 X20
S-pattern acceleration/deceleration C
switching terminal
NET External
22 X22 Orientation command
NET External
23 LX Pre-excitation
NET External