Ulvac DC-10, Operation Manual, Page: 16 / 88

DC Power
【
DC-10/DC-20
】
2. Overview
5
2-4 Specifications
Table 2-2: Electrical specification; 800V
Item Specifications
Model DC-10 DC-20
In
p
u
t
s
p
e
c
if
ic
a
ti
o
n
Rated input voltage AC208V AC208V
Input voltage variation
range
AC187V
～
229V
Number of phases /
Frequency
Three-phase for 50/60Hz
Input connection Connector
Input current 50A or less*1 80A or less*1
Input capacity 13.5 kVA or less*1 25 kVA or less*1
Leakage current 5 mA or less
Efficiency 87
％
or more*2 87
％
or more*2
Power factor 0.85 or more*2 0.92 or more*2
O
u
tp
u
t
s
p
e
c
ifi
c
a
ti
o
n
Rated power 10kW 20kW
Rated current 25A 50A
Rated voltage 800V 800V
Ignition voltage 1500V 1500V
Output range
10kW
V1
1500V
1A
I4
Standard
S specifications
V2
800V
V3
400V
V4
200V
V5
100V
5A
I1
12.5A
I2
25A
I3
20kW
V1
1500V
2A
I4
Standard
S specifications
V2
800V
V3
400V
V4
200V
V5
100V
5A
I1
25A
I2
50A
I3
V1 1500V V1 1500V
V2 800V V2 800V
V3 400V V3 400V
V4 200V V4 200V
V5 100V V5 100V
I1 5A I1 5A
I2 12.5A I2 25A
I3 25A I3 50A
I4 1A I4 2A
Output polarity Negative polarity
ARC control If ARC is detected, the inverter is stopped and LARC separates the load side*3.
Output connection Connector
Con
tro
l
Control mode system LOCAL control / USER control / SERIAL communication control (RS232C or RS485)
Output control system Constant power control (P control) / Constant current control (I control) / Constant voltage
control (V control)
Control accuracy The higher of ±0.5% or less of the rated output or ±1% of the set value
In addition to the above, the S specification is 1 to 10% of the rated power value and ± 5% or
less of the set value.
Guaranteed control
range
Constant power control: 10 to 100% of the rated power value
In addition to the above, S specifications are constant power control 1 to 100% of the rated
power value.
*1: This depends on the working condition at your site.
*2: This depends on an input voltage of 187 to 229 VAC. This may depend on the equipment on the input
side.
*3: When an Active Arc Killer is used, only the inverter stops.
When an oscillator is used, change the settings in reference to 4-14 "Precautions for use of External
oscillator."