
Programming 5 - 69
L8 Hardware Protection
L8-01 Internal Dynamic Braking Resistor Protection Selection
This parameter is not applicable for Drive operation.
L8-02 Overheat Pre-Alarm Level
Setting Range:
50 to 130
o
C
Factory Default: 95
o
C
L8-03 Overheat Pre-Alarm Operation Selection
The Drive is capable of warning the operator of an impending heatsink over-temperature fault via an OH pre-alarm. The level
at which the pre-alarm will activate is determined by the setting of parameter L8-02. Measurement of the heatsink temperature
is done with several strategically mounted thermistors. If any of the heatsink thermistors measure a temperature in excess of
the setting of L8-02, the Drive will fault (OH2) and either: ramp to stop using the C1-02 deceleration rate (L8-03= “0: Ramp to
Stop”), coast to stop (L8-03= “1: Coast to Stop”), ramp to stop using the C1-09 fast stop deceleration rate (L8-03= “2: Fast-
Stop”), alarm (OH) and continue running (L8-03 = “3: Alarm Only”), alarm (OH) and continue running but at a reduced speed
(L8-03= “4: Alarm & Reduce”). If L8-03= 4: Alarm and Reduce, the Drive will continue to run but will reduce the speed to the
level determined by parameter L8-19. Refer to the description for parameter L8-19.
If a digital output is configured for OH Prealarm (H2-01= “20: OH PreAlarm”), it will close whenever the heatsink tempera-
ture is greater than the L8-02 level no matter what the setting is of L8-03.
L8-10 Heatsink Cooling Fan Operation Selection
Setting
Description
0
Not Provided (
factory default
)
1
Provided
Setting
Description
0
Ramp to Stop (Decel Time C1-02)
1
Coast to Stop
2
Fast-Stop (Decel Time C1-09)
3
Alarm Only
4
OH Alarm and Reduce (
factory default
)
Setting
Description
0
Fan On-Run Mode (
factory default
)
1
Fan Always On
Содержание E7LBA002
Страница 1: ...E7L Drive Bypass Technical Manual Model E7L Document Number TM E7L 01 ...
Страница 8: ...Introduction vi Notes ...
Страница 12: ...Table of Contents x Notes ...
Страница 54: ...Electrical Installation 2 22 Wiring Diagram ...
Страница 55: ...Electrical Installation 2 23 ...
Страница 87: ...Start Up and Operation 4 9 Notes ...
Страница 202: ...Diagnostic Troubleshooting 6 30 Notes ...
Страница 248: ...Capacity Related Parameters B 6 Notes ...
Страница 279: ...Communications D 27 Note ...
Страница 280: ...Communications D 28 ...
Страница 292: ...Spare Parts F 6 ...
Страница 304: ...Index 12 ...
Страница 305: ......