Auxiliary Functions (Pr. 156, Pr. 157); Stall Prevention Operation Selection (Pr. 156) - Mitsubishi Electric FR-V500 Instruction Manual

Auxiliary functions (Pr. 156, Pr. 157)

3.17 Auxiliary functions (Pr. 156, Pr. 157)
3.17.1 Stall prevention operation selection (Pr. 156
Make setting to disable stall prevention activated by overcurrent and/or to prevent the inverter from resulting
in an overcurrent trip if an excessive current flows due to sudden load fluctuation or running inverter output
side ON-OFF (to disable fast response current limit that limits the current). An OL signal output delay can be
set in Pr. 157.
Stall prevention (only during V/F control)
Automatically change the output frequency of the inverter to reduce the amount of current when the current
flow exceeds the current limit value.
Fast response current limit
Shut off the output of the inverter to prevent overcurrent when the current flows exceeds the current limit
value.
Parameter
Stall prevention operation
156
selection
Fast
Response
Current
Limit
: Activated
: Not
activated
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
100
*3
*1 When "Operation not continued for OL signal output" is selected, the "
operation stopped.
*2 Since both fast response current limit and stall prevention are not activated, OL signal and E.OLT are not output.
*3 The settings "100" and "101" allow operations to be performed in the driving and regeneration modes, respectively. The setting "101" disables
the fast response current limit in the driving mode.
Name Factory Setting
Stall
Prevention OL Signal
: Activated Output
: Operation
continued
: Operation
not
continued
⎯
*2
⎯
*2
speed
Setting Range
1 0 to 31, 100, 101
Fast
Response
Current
Limit
: Activated
: Not
activated
*1
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
101
*3
" alarm code (stopped by stall prevention) is displayed and
148
)
torque position
Remarks
Extended mode
Stall
Prevention OL Signal
: Activated Output
: Operation
continued
: Operation
not
continued
⎯
⎯
*1
*2
*2