Magnetek IMPULSE VG+ Series 3, Instruction Manual

Page: 138 / 183

IMPULSE•VG+ Series 3 Instruction Manual – 07/25/05
5-85
Hardware Protection
The IMPULSE•VG+ Series 3 comes equipped with a number of built-in functions designed to
protect the inverter and its components from damage.
Parameter
Code
Display Function Range
Initial
Value
Access
Level
L8-02 OH Pre-Alarm Lvl Sets the heatsink temperature level for
protection against
overheat (OH).
Note: The inverter measures heatsink
temperature by an negative
temperature coefficient thermistor.
50–130°C 95
°
Adv
L8-03 OH Pre-Alarm Sel Selects the stopping method when
heatsink overheat is detected. 4 Adv
0 Decel to Stop (Decel to stop using B5-02)
1 Coast to Stop (Immediate stop)
2 Fast-Stop (Decel to stop using B5-08)
3 Use B3-03 Method Uses programmed B3-03 Method
4 Alarm Only (Operation continues and “OH
Heatsink Overtemp” is displayed on
keypad)
L8-05 PH Loss In Sel Input phase loss detection 1 Adv
0 Disabled
1 Enabled
L8-07 PH Loss Out Sel Output phase loss detection 2 Adv
0 Disabled
1 1PH Loss Det
2 2/3PH Loss Det
L8-09 Ground Fault Detect Enables/disables ground fault
detection 1 Adv
0 Disabled
1 Enabled
L8-10 Fan On/Off Sel Cooling fan operation select 0 Adv
0 Fan On-Run Mode
1 Fan Always On
L8-11 Fan Delay Time When L8-10 = 1, fan will operate L8-
11 seconds after Run Command is
removed 0-300 sec 60 Adv
L8-12 Ambient Temp Adjusts Overload (OL2) Protection
for high ambients 45-60°C 45° Adv
L8-15 OL2 Sel @ L-Spd Enables/disables OL when output
frequency < 6 Hz 0 Adv
0 Disabled
1 Enabled
L8-18 Soft CLA Sel Enables/disables the software current
limit function. Limits output
frequency when current exceeds
110% of rated. 1 Adv
0 Disabled
1 Enabled