Rockwell powerflex 700h, Руководство по программированию

Страница: 35 / 104

Programming and Parameters 2-21
D
Y
NA
MIC C
O
NTR
O
L
Restar
t Modes
182 [Sleep Level]
Defines the analog input level that will
stop the drive.
Default:
Min/Max:
Units:
5.000 mA, 5.000 Volts
4.000 mA/[Wake Level]
0.000 Volts/[Wake Level]
0.001 mA
0.001 Volts
183
183 [Sleep Time]
Defines the amount of time at or below
[Sleep Level] before a Stop is issued.
Default:
Min/Max:
Units:
0.0 Secs
0.0/1000.0 Secs
0.1 Secs
182
P
o
wer Loss
184 [Power Loss Mode]
Sets the reaction to a loss of input power.
Power loss is recognized when:
•
DC bus voltage is
≤
73% of [DC Bus
Memory] and [Power Loss Mode] is set
to “Coast”.
•
DC bus voltage is
≤
82% of [DC Bus
Memory] and [Power Loss Mode] is set
to “Decel”.
Default:
Options:
0
0
1
2
“Coast”
“Coast”
“Decel”
“Continue”
013
185
185 [Power Loss Time]
Sets the time that the drive will remain in
power loss mode before a fault is issued.
Default:
Min/Max:
Units:
0.5 Secs
0.0/60.0 Secs
0.1 Secs
184
186 [Power Loss Volts]
Sets the level at which the [Power Loss
Mode] selection will occur.
Default:
Min/Max:
Units:
Based on Drive Rated Volts
170.0/780.0 VDC
0.1 VDC
189 [Shear Pin Time]
Sets the time that the drive is at or above
current limit before a fault occurs. Zero
disables this feature.
Note: Added for firmware version 3.001.
Default:
Min/Max:
Units:
0.0 Secs
0.0/30.0 Secs
0.1 Secs
238
File Gr
oup
No.
Parameter Name & Description Values
Related
The drive can use the percentages referenced in [Power Loss Mode] or a trigger
point can be set at [Power Loss Volts]. A digital input (programmed to “29, Pwr
Loss Lvl”) is used to toggle between fixed percentages and the [Power Loss
Volts] level.
!
ATTENTION: Drive damage can occur if proper input impedance is
not provided as explained below.
If the value for [Power Loss Volts] is less than 82% of the nominal
DC bus voltage, the user must provide a minimum line impedance
to limit inrush current when the power line recovers. The input
impedance should be equal to or greater than the equivalent of a
5% transformer with a VA rating 5 times the drives input VA rating.