
4.SEPARATED REGENERATIVE DISCHARGE UNIT FANUC AC SERVO AMPLIFIER β series B-65232EN/03
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4.1.4 Notes on Regenerative Discharge Unit Installation
WARNING
1 A regenerative discharge resistor may be heated to
a temperature from 100°C to 200°C. Be careful not
to touch the regenerative discharge resistor.
2 If a regenerative resistor needs to be touched for a
purpose such as maintenance, turn off all the
power to the amplifier, wait 30 minutes or more,
and check that DC link charge indicator LED
(CAUTION CHARGE) is turned off and that the
regenerative resistor is sufficiently cooled.
3 Install a regenerative resistor sufficiently away from
a combustible material.
(1) Drawing numbers
Capacity
Wind speed
Drawing number of
regenerative
discharge unit
Resistance
value
0m/sec 2m/sec 4m/sec
Remark
A06B-6093-H401 30Ω 20W - - For 12/20A
A06B-6093-H402 30Ω 100W - - For 12/20A
A06B-6089-H500 16Ω 200W 400W 600W For 40/80A
A06B-6089-H713 16Ω With cooling fan motor 800W For 40/80A
A06B-6089-H714 16Ω With cooling fan motor 1200W For 40/80A
(2) Installation condition
<1> Cautions on installation
A06B-6093-H401
A06B-6093-H402
Install a regenerative discharge unit in a completely closed cabinet.
A06B-6089-H500
A06B-6089-H713
A06B-6089-H714
Install the pin side in a completely closed cabinet, and install the resistor side (heat dissipation
portion) in an exhaust duct.
(a) Use the delivered packings.
(b) Ensure that the pin side and resistor side (heat dissipation portion) are not exposed to
coolant, oil mist, cuttings, and so forth.
(c) To introduce the open air for the resistor (heat dissipation portion), use an air filter at the
inlet. Ensure that the cable inlet and outlet, door, and so forth are sealed.
<2> Ambient Temperature
0 to 55 °C (operating)
-20 to 60 °C (storage and transportation)
<3> Humidity
Usually, 95% RH or lower (no condensation)
<4> Vibration
No more than 0.5G during operation
<5> Installation direction
Install a regenerative discharge unit correctly according to
the installation drawings that follow.