Okuma OSP 5000, Electrical Maintenance, Training Manual

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Okuma America Corporation
CONSTR CONSTR
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CONSTRUCTION UCTION
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Rev. 8-21-01
The following table describes the LED’s which are located on the lower right side of the SVC-1
board on BL-IID type D drive.
There is characteristics table for the BL-IID type D servo drives. This table defines the characteris-
tics of the BL-IID type D drive amplifier. These characteristics vary from machine to machine and
are dependent on the type or size of motor the drive amp is controlling. There are three settings
that should be looked at when a machine is first installed or a BL-IID type D drive amplifier is
replaced. These are VLG, VNFB, and VCOM.
Before removing the drive unit.
The BDU servo system has a capacitor discharge switch on the DCPS (power supply). If a BDU
drive unit or power supply has to be removed,
power off and then push this discharge button to
discharge the capacitors before removing the high voltage wires (VH & VL). This button is
labeled “
Push Switch ”.
The BLD and BL-IID servo systems do not have a “Push Switch”, they have an LED that stays
on if the capacitors are still charged. In most cases the LED on the BLD servo system will
slowly extinguish as soon as you power off. On BL-IID’s the LED does not extinguish right
away. If necessary the NFB breaker on the unit itself can be turned off to discharge the capaci-
tors immediately. If the breaker is not turned off, it will take 5 or 10 minutes for the capacitors
to discharge.
LED Color Description
SAOP.N Yellow Sub Amp Operation - Turns off when machine ready signal is received.
IOCS Red Instantaneous Over Current in the Servo amplifier.
IOCM Red Instantaneous Over Current in the Motor.
VR Red The + or – 15DC and/or the 5 VDC has dropped below specification.
F.OL Red Fin Over Load-Heatsinks are getting too hot.
M.OL Red Motor Over Load
LV Red Low Voltage
HV Red High voltage was detected. The 300 VDC went above 430 VDC.