Omron SMARTSTEP A Series User Manual page 181

System Design and Installation
External Regeneration Resistors
■
● Specifications
Model Resistance
47 Ω ± 5%
R88D-RR22047S
External Regen-
eration Resistor
Note The following external regeneration resistors are recommended products from another manu-
facturer, Iwaki Musen Kenkyujo. For details, refer to the manufacturer's documentation.
RH120N50 Ω J 50 Ω ± 5% 30 W (Amount of regeneration at 120 ° C)
RH300N50 Ω J 50 Ω ± 5% 75 W (Amount of regeneration at 120 ° C)
RH500N50 Ω J 50 Ω ± 5% 100 W (Amount of regeneration at 120 ° C)
● Combining External Regeneration Resistors
70W (47 Ω)
1
R
Note A combination cannot be used if the resistance is less than the minimum connection resistance
for any given Servo Driver. Refer to the following table for the minimum connection resistance
values for each Servo Driver, and select a suitable combination.
Servo Driver Minimum Connection Resistance and External
■
Regeneration Resistor Combinations
Servo Driver
R7D-AP04L
R7D-AP04H
R7D-AP08H
Nominal
capacity
220 W
280W (47 Ω)
2
Minimum Connection
Resistance ( Ω )
40
40
40
Regeneration
absorption at
120 ° C
t1.0 × @350
70 W
(SPCC)
3
R R
R R
External Regeneration Resistor Combinations
1 1 , 2 2
1 1 , 2 2
1 1 , 2 2 , 3 3
Chapter 3
Heat radiation Thermal switch
output
Operating tem-
perature: 170 ° C
NC contact
630W (47 Ω)
R R R
R R R
R R R
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