3-33
j
R88D-UEP20H/UEP20V (750 W)
Applicable load inertia
(
×
10
–4
kg
m
2
)
700W 13.4
×
10
–4
kg
m
2
4.7
Rotational speed (r/min)
3-8-3 Absorption of Regenerative Energy with the External
Regeneration Resistor
Connect one or more external regeneration resistors when a Regeneration Unit (R88A-
RG08UA) cannot absorb all of the regenerative energy. Remove the short bar from be-
tween the RG and JP terminals on the Regeneration Unit and connect the resistor be-
tween the P and RG terminals. Connecting to the wrong terminals may destroy the Re-
generation Unit, so connect the resistor carefully. (The Regeneration Unit does not con-
form to EC Directives.)
The external regeneration resistor will heat to approximately 120
C. Do not install it near
devices or wiring that is sensitive to heat. Install heat radiation plates suitable to the radi-
ation conditions.
External Regeneration Resistors
j
Models
Model
Resistance
Nominal
capacity
Regeneration
absorption at
120
C
Heat
radiation
conditions
Thermal switch
output specifications
R88A-RR22047S 47
Ω
±
5%
220 W
70 W
t1.0
×
350
(SPCC)
Operating
temperature:
170
C
±
5%
N.C. contact
Rated output: 3 A
Operation
Chapter 3
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