Okuma OSP 5000 Electrical Maintenance, Training Manual page 120

BL-IID Type D
The BL-IID type D is used for some ATC magazines and tool change arms, table positioning on
some APC's and for crossrail positioning on some double column machining centers. This drive
receives an analog command signal from the ECP board. This D type drive is not used on ma-
chines with the OSP 7000 control. The BL-IID D type is composed of four parts: power board,
SVCII board, and two SVC-1 boards. Each SVC-1 board controls an axis. The SVC-1 board used
on a BL-IID type D is the same as the SVC-1 board on the BLD-D. A block diagram of a BL-IID
type D drive can be seen in figure 5-8.
The BL-IID type D axis drive as mentioned previously is used for positioning some ATC's, APC's
and crossrails. The two big differences about this drive compared to the BLII-D type A is the
command signal is an analog signal and it comes from the ECP board. The SVCII board is the
same as the SCVII board on the type A drives. The SVC-1 board has eight LED indicators on it.
The following table describes what they mean.
LED Color
D0 Yellow
D1 Yellow
D2 Yellow
APA Red
MPR Red
E8 Red
CPU Green
ALA Red
Rev. 8-21-01
Position Feedback
R
SVC #1
S
(1 st axis)
T
SVC #1
ECPIIA
(2 st axis)
Position Feedback
Description
Used for inspection purposes during assembly.
Used for inspection purposes during assembly.
Used for inspection purposes during assembly.
This LED turns on whenever RCON and RAPA do not match.
This LED turns on whenever the MPR data from the encoder is abnormal.
This LED turns on whenever the E8 data from the encoder is abnormal.
CPU is in normal operation. CPU is running.
This Alarm LED turns on when the APA, MPR, or E8 LED turns on.
Okuma America Corporation
Speed and Position Feedback
BL Motor
BL Motor
Speed and Position Feedback
Fig. 5-8
5-29
CONSTR CONSTR UCTION UCTION
CONSTR CONSTRUCTION CONSTR UCTION UCTION
Absolute
Position
Encoder
Absolute
Position
Encoder