Yaskawa Matrix Converter User Manual download pdf (Page 149)

Parameter Tables

5-49

L8: Hardware Protection

* The default depends upon the MxC capacity. The value for a 200 V class MxC of 5.5 kW is given.

Parameter

Number

Name

Description

Setting

Range

Default

Change

during

Run

Control

Methods

MEMO-

BUS

Register

Page

Display

V/f

Open

Loop

Vector

Flux

Vector

L8-02

Overheat Alarm

Level

When the cooling fin temperature

exceeds the value set in this parameter, an

Overheat Alarm (OH) will occur.

50 to

130

90 °C

*

No A A A 4AEH 6-66

OH Pre-Alarm

Lvl

L8-03

Overheat Pre-

Alarm Operation

Selection

Selects the MxC operation upon an OH

pre-alarm detection.

0: Decelerate to Stop

1: Coast to Stop

2: Fast-Stop

3: Alarm Only

0 to 3 3 No A A A 4AFH 6-66

OH Pre-Alarm

Sel

L8-07

Output Phase

Loss Protection

Selects the detection method for output

phase loss.

When applied motor capacity is too small

for MxC capacity, output phase loss may

be detected inadvertently. In this case, set

to 0.

0: Disabled.

1: Single Phase Loss Detection

2: 2/3-phase Loss Detection

0 to 2 0 No A A A 4B3H -

Ph Loss Out Sel

L8-09

Output Ground

Fault Detection

Selection

Enables and disables the MxC's output

ground fault detection.

0: Disabled.

1: Enabled.

0 or 1 1 No A A A 4B5H -

Ground Fault Sel

L8-10

Heatsink Cooling

Fan Operation

Selection

Controls the heatsink cooling fan opera-

tion.

0: Fan On-Run Mode - Fan will operate

only when the MxC is running and for

L8-11 seconds after RUN is removed.

1: Fan always on - Cooling fan operates

whenever the MxC is powered up.

0 or 1 0 No A A A 4B6H -

Fan On/Off Sel

L8-11

Heatsink Cooling

Fan Operation

Delay Time

This parameter sets the delay time for the

cooling fan turn off after the Run Com-

mand is removed when L8-10 = 0.

0 to 300 60 s No A A A 4B7H -

Fan Delay Time

L8-12

Ambient Temper-

ature Setting

When the MxC is installed in an ambient

temperature exceeding its rating, the

MxC overload (OL2) protection level is

adjusted.

45 to 60 45 °CNo AA A 4B8H -

Ambient Temp

L8-15

OL2 Characteris-

tic Selection at

Low Speeds

This parameter assists in protecting the

output transistors from overheating when

output current is high and output fre-

quency is low (6 Hz and less).

0: Disabled. - L8-16 and L8-17 are dis-

abled.

1: Enabled. - L8-16 and L8-17 are

active.

0 or 1 1 No A A A 4BBH -

OL2 Sel @ L-Spd

L8-42

Factory adjust-

ment 1

For factory adjustment

Do not change the setting.

0: Not adjusted

1: Being adjusted

2: Adjusted

0 to 2 2 No A A A 4F3H 8-3

Voltage Offset

1 2 ... 144 145 146 147 148 149 150 151 152 153 154 ... 397 398

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