Delta VFD-ED Series, User Manual

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Ch12 Descriptions of Parameter Settings | VFD-ED
12-57
ON
ON
Power Generatio n Dire ction
Searching Time
06 -4 4
ON
ON
ON
07 -0 3
06 -4 7
Drive's DC vo lt age
Output Frequ ency
Operation comma nd
FWD /REV
Emergency pow er
det ect ion MI=43
DC brake t ime
Operation spe ed
of enege ncy power
Drive is ready
MO=9
Low voltage level
Emergency DC voltage
MO=31
Power generation
direction searching
MO=32 Power generation
direction

Power Generation Direction Search Time
Control Mode VF VFPG SVC FOCPG FOCPM Default: 1.0
Settings 0.0–5.0 sec.
Power Capacity of Emergency Power (EPS)
Control Mode VF VFPG SVC FOCPG FOCPM Default: 0.0
Settings 0.0–100.0 kVA

When using emergency power (EPS), you must set the parameter to the required power capacity for the
emergency power, and then the AC motor drive calculates the acceptable elevator speed (Pr.06-44) with
the following equation.

01 05
_
 
rated motor
I
(Induction Motor)/
01 08

(PM Motor)
rated motor
eps
I
V
_
max _
3
5 . 0 48 06

 

01 01
02 01
max _
lim _
 


eps
it eps
V
f
When the Frequency command > f
EPS
, the operation speed of emergency power (EPS) is f
EPS
.
When the Frequency command
≤
f
EPS
, the operation speed of emergency power (EPS) is set according to
the current Frequency command.

Power Factor Angle Level for Power Generation Direction
Control Mode
VF VFPG SVC FOCPG FOCPM
Default: 70.0
Settings
0.0–150.0
〫

During operation, if the largest power factor angle is larger than Pr.06-68 setting value, the power
generation direction is the current operation direction.
Reference Level for Power Factor Angle during Operation
Control Mode
VF VFPG SVC FOCPG FOCPM
Default: Read only
Settings
-200.0–200.0
〫

The largest power factor angle during operation.