Omron SMARTSTEP A Series User Manual page 162

System Design and Installation
Smart Power
Servo supply
Driver voltage
V
Single- 200
phase
200
200
200
200
200
● Surge Absorbers
Use surge absorbers to absorb surges from power supply input lines due to lightning, abnormal volt-
ages, etc. When selecting surge absorbers, take into account the varistor voltage, the amount of
surge immunity, and the amount of energy resistance. The surge absorbers shown in the following
table are recommended.
Maker
Matsushita Electric
Ishizuka Electronics
Co.
Note 1. The (W) for the Matsushita models indicates that they are UL and CSA certified.
Note 2. Refer to the manufacturers' documentation for operating details.
Note 3. The surge immunity is for a standard impulse current of 8/20 µ s. If pulses are wide, either
decrease the current or change to a larger-capacity surge absorber.
Note 4. The energy resistance is the value for 2 ms. It may not be possible to retard high-energy
pulses at less than 700 V. In that case, absorb surges with an insulated transformer or reac-
tor.
● Noise Filters for Power Supply Input
Use a noise filter to attenuate extraneous noise and to diminish noise radiation from the Servo Driver.
Select a noise filter with a load current of at least twice the rated current. The following table shows
noise filters that reduce by 40 dB noise between 200 kHz and 30 MHz.
Type
Single-phase
3-22
Servo Capacity
Driver
model
(R7D-)
APA3H 30 W
APA5H 50 W
AP01H 100 W
AP02H 200 W
AP04H 400 W
AP08H 750 W
Model Varistor
voltage
ERZC20EK471(W) 470 V
ERZC25EK471(W) 470 V
ERZC32EK471(W) 470 V
Z25M471S 470 V
Z33M471S 470 V
Model
GT-2050
LF-210N
LF-215N
LF-220N
Rated Inrush
current current
circuit
A (rms)
A (0-p)
0.82 90
1.1 90
2 90
3.4 90
5.5 90
9.4 130
Max. limit Surge
voltage immunity
775 V 5,000 A
775 V 10,000 A
775 V 20,000 A
775 V 10,000A
775 V 20,000 A
Rated current
5 A
10 A
15 A
20 A
Chapter 3
125% of NFB model
rated
current
1.025 NF30-SW 10A
1.375 NF30-SW 10A
2.5 NF30-SW 10A
4.25 NF30-SW 10A
6.875 NF30-SW 10A
11.75 NF30-SW 15A
Energy Type
resistance
150 J Block
225 J
405 J
235 J Block
385 J
Maker
Tokin