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Mitsubishi Electric FR-E500 Instruction Manual Page 157

Fr-e500 series transistorized inverter.
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<Setting>
Refer to the following tables and set the parameter as required.
Fast-Response
Pr. 156
Current Limit
{
Setting
: Activated
z
: Not activated
{
0
z
1
{
2
z
3
{
4
z
5
{
6
z
7
{
8
z
9
{
10
z
11
{
12
z
13
{
14
z
15
Note 1: When "Operation not continued for OL signal output" is selected, the
"E.OLT" alarm code (stopped by stall prevention) is displayed and operation
stopped.
(Alarm stop display "E.OLT")
2: If the load is heavy, the lift is predetermined, or the acceleration/deceleration
time is short, the stall prevention may be activated and the motor not
stopped in the preset acceleration/deceleration time. Therefore, set optimum
values to the Pr. 156 and stall prevention operation level.
Always perform test operation.
Stall prevention operation performed during acceleration may increase
the acceleration time.
Stall prevention operation performed during constant speed may cause
sudden speed changes.
Stall prevention operation performed during deceleration may increase
the deceleration time, increasing the deceleration distance.
Pr. 158 Î Refer to Pr. 52.
Stall Prevention
OL
Signal
Operation Voltage
{
Output
{
: Activated
z
:
: Not activated
Operation
continued
z
:
Operation
not
continued
(Note 1)
{
{
{
{
{
{
{
{
z
{
{
{
z
{
{
{
{
z
{
{
{
z
{
{
{
{
z
z
{
{
z
z
{
{
{
z
{
{
z
{
z
{
z
{
z
{
z
{
{
z
z
{
{
z
z
{
z
z
z
{
z
z
z
{
Fast-Response
Pr. 156
Current Limit
{
Setting
: Activated
z
: Not activated
{
16
z
17
{
18
z
19
{
20
z
21
{
22
z
23
{
24
z
25
{
26
z
27
{
28
z
29
{
30
z
31
{
100
z
CAUTION
142
PARAMETERS
OL
Stall Prevention
Signal
Operation Voltage
{
Output
{
: Activated
z
:
: Not activated
Operation
z
continued
:
Operation
not
continued
(Note 1)
{
{
{
z
{
{
{
z
z
{
{
z
z
{
{
z
{
z
{
z
{
z
{
z
{
z
z
z
{
z
z
z
{
{
z
z
{
{
z
z
z
{
z
z
z
{
z
z
{
z
z
z
{
z
z
z
z
z
z
z
z
z
z
z
{
{
{
{
z
z
z
{

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