
6. HARDWARE
205
D Mounting positions of cards and DIMM module
(1) CPU card
(2) Axis control
card
No. Item Code Function Remarks
(1) CPU card A20B–3300–0310 DRAM 16MB
A20B–3300–0311 DRAM 32MB
(2) Axis control A20B–3300–0243 Axis control 2 axes Servo software
card
A20B–3300–0242 Axis control 4 axes
Series 90B0
A20B–3300–0241 Axis control 6 axes
A20B–3300–0240 Axis control 8 axes
A20B–3300–0248 Axis control 4 axes Servo software
A20B–3300–0245 Axis control 6 axes
Series 90B0
(High–speed
A20B–3300–0244 Axis control 8 axes
(High–speed
HRV)
A20B–3300–0246 Learning controlled
axis control
Servo software
Series
90B3/90B7
A20B–3300–0247 Learning controlled
axis control
Servo software
Series
90B3/90B7
(High–speed
HRV)
D LED display
• LED display at power–up j: Off J: On
STATUS jjjj Power off
STATUS JJJj CPU not activated after power–up
STATUS Jjjj Initialization completed, normal operation in
progress
• LED display when a system alarm occurs j: Off J: On l: Blink
ALARM jJj Servo alarm
ALARM Jjj A DRAM parity error was detected.
ALARM ljj A bus error occurred in a sub–CPU.
NOTE If any of the system alarms occurs, the hardware may be defective.