Omron SMARTSTEP Junior R7D-ZP, User Manual

Page: 59 / 118

3-5 Regeneration Resistance Unit
3-5-1 Regeneration Resistance Unit (R88A-RG08UA) Specifications
3-5 Regeneration Resistance Unit
3-5-1 Regeneration Resistance Unit (R88A-RG08UA) Specifications
General Specifications
Item Specifications
Ambient operating temperature 0 to 55 ° C
Ambient operating humidity 35% to 85% (with no condensation)
Ambient storage temperature − 10 to 75 ° C
Ambient storage humidity 35% to 85% (with no condensation)
Storage and operating
atmosphere
No corrosive gasses
Vibration resistance 4.9 m/s
2
max.
Impact resistance Acceleration 19.6 m/s
2
max.
Characteristics
Item Specifications
Regeneration operating voltage 380 VDC
Regeneration current 8 A (DC)
Average internal regeneration power 12 W (internal resistance: 50
Ω
, 60 W)
Externally connected regeneration
resistance 47
Ω ±
5%
Error detection functions Regeneration resistance disconnection, Regeneration transistor
failure, and overvoltage
Alarm output Single-pole NC contact (open when protection function is
operating), can handle 200 VAC.
Dimensions 55 × 160 × 130 mm (W × H × D)
LED Indicator Specifications
Item Specifications
POWER Lit when power is being supplied to the P and N terminals.
REGEN Lit during regeneration operation.
ALARM-REGEN
Lit when the regeneration resistance is disconnected or the regeneration
transistor failed.
ALARM-OV Lit when there is an overvoltage.
Note 1. If an error is detected, an alarm is output from the Regeneration Resistance Unit. Set up
a sequence so that the power to the Servo Driver (L1 and L2) is turned OFF when an
alarm occurs.
2. When an error is detected and the Servo Driver’s power is turned OFF, the Regeneration
Resistance Unit will not reset normally unless the Servo Driver’s power is OFF for 2 to 3
seconds. (The Regeneration Resistance Unit will reset to its normal status after the
Servo Driver’s internal capacitors discharge completely and the voltage drops across
terminals P and N.)
3. The Regeneration Resistance Unit does not comply with the EC Directives.
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