External Dynamic Brake Resistor; General Specifications; Characteristics - Omron R88M-1M Series User Manual

3 Specifications
3-6

External Dynamic Brake Resistor

This section describes the specifications of the External Dynamic Brake Resistor.
For the external dimensions, refer to 2-4-7 Dimensions of External Dynamic Brake Resistors on page
2-120.
3-6-1

General Specifications

Item
Dielectric strength
Insulation resistance
Operating ambient tempera-
ture and humidity
Storage ambient temperature
and humidity
Operating and storage atmo-
sphere
Frequency of use
Deceleration patterns
3-6-2

Characteristics

Applicable
Servo Drive
(R88D-1SN
-ECT)
55H, 75H
150H
55F, 75F
150F
3 - 132
AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User's Manual (I586)
Between terminals and case: 2,000 VAC for 1 min (at 50/60 Hz)
Between terminals and case: 20 MΩ min. (at 500 VDC)
0 to 55°C, 90% max. (with no condensation)
-25 to 85°C, 95% max. (with no condensation)
No corrosive gases
3 minutes or more per activation
10,000 times at rated rotation speed and applicable load inertia
External Regeneration Resistor
Resis-
Model tance
value
R88A-DBR30001R5 1.5 Ω
R88A-DBR30001R2 1.2 Ω
R88A-DBR30004 4 Ω
R88A-DBR30005 5 Ω
Model
R88A-DBR300
Heat
Heat
radiation
radiation
specifica-
condition
tion
Natural cool- Aluminum
ing 350 mm ×
350 mm
Thickness:
t3.0 mm
Wire size
Weight
1.6 kg AWG 16
(Rated tempera-
ture: 200°C)
Length: 500 mm