Omron R88D-1SN ECT Series User Manual

3 Specifications
3 - 132
AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User’s Manual (I586)
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
Model
R88A-DBR300
Dielectric strength Between terminals and case: 2,000 VAC for 1 min (at 50/60 Hz)
Insulation resistance Between terminals and case: 20 MΩ min. (at 500 VDC)
Operating ambient tempera-
ture and humidity
0 to 55°C, 90% max. (with no condensation)
Storage ambient temperature
and humidity
-25 to 85°C, 95% max. (with no condensation)
Operating and storage atmo-
sphere
No corrosive gases
Frequency of use 3 minutes or more per activation
Deceleration patterns 10,000 times at rated rotation speed and applicable load inertia
3-6-2 Characteristics
Applicable
Servo Drive
(R88D-1SN
-ECT)
External Regeneration Resistor
Wire size
Model
Resis-
tance
value
Heat
radiation
specifica-
tion
Heat
radiation
condition
Weight
55H, 75H R88A-DBR30001R5 1.5 Ω Natural cool-
ing
Aluminum
350 mm ×
350 mm
Thickness:
t3.0 mm
1.6 kg AWG 16
(Rated tempera-
ture: 200°C)
Length: 500 mm
150H R88A-DBR30001R2 1.2 Ω
55F, 75F R88A-DBR30004 4 Ω
150F R88A-DBR30005 5 Ω

Omron R88D-1SN ECT Series Specifications

General

Feedback	Incremental encoder, Absolute encoder
Position Control	Yes
Speed Control	Yes
Torque Control	Yes
Communication Interface	EtherCAT
Power Supply Voltage	200 to 240 VAC
Output Power	0.1 to 1.5 kW
Input Voltage Range	170 to 264 VAC
Control Method	Sine-wave PWM control
Main Circuit Power Supply	200-240 VAC
Applicable Motor Capacity	0.1 to 1.5 kW
Protection Functions	Overcurrent, Overvoltage, Undervoltage, Overheating, Encoder Error
Ambient Operating Temperature	0 to 55°C
Vibration Resistance	4.9 m/s² (10 to 55 Hz)
Shock Resistance	98 m/s2
Weight	Varies by model