Connecting An External Regeneration Resistor - Omron R88M-1M Series User Manual

External Regeneration Resistance Unit
R88A-RR1K6, R88A-RR550
Model
R88A-RR1K602R5
R88A-RR1K604
R88A-RR1K605R4
R88A-RR1K610
R88A-RR1K616
R88A-RR1K617
R88A-RR1K620
R88A-RR1K640
R88A-RR1K666
R88A-RR55002R5
R88A-RR55004
R88A-RR55005R4
R88A-RR55010
R88A-RR55016
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Connecting an External Regeneration Resistor

Normally, short-circuit B2 and B3.
When an External Regeneration Resistor is required, remove the short-circuit wire between B2 and B3,
and connect an External Regeneration Resistor between B1 and B2 as shown below.
Servo Drive
Precautions for Correct Use
In Regeneration (4310 hex), set a value which is appropriate for the external regeneration
resistor that is connected. If you set a wrong value, the resistor may produce heat abnormally,
and fire or burning may result.
AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User's Manual (I586)
Resistance value
2.5 Ω
4 Ω
5.4 Ω
10 Ω
16 Ω
17 Ω
20 Ω
40 Ω
66 Ω
2.5 Ω
4 Ω
5.4 Ω
10 Ω
16 Ω
B1
External Regeneration
B2
Resistor
B3
Remove the short-circuit wire
between B2 and B3.
4 Configuration and Wiring
Power to be
absorbed for Heat radiation
120°C tempera- specification
ture rise
640 W Forced cooling by
the fan
110 W Natural cooling
4
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