
5 - 4 Alpha Series Servo Amplifier Module (SVM) with FSSB - April 1998 GFK-1546
5
Frequently Asked Setup Questions
Question / Problem Solution
Cannot input the parameter in MDI
mode.
Remember that you cannot input a parameter in MDI mode unless you cycle power ,
OFF and ON.
After turning power OFF and then ON and disconnecting the optical cable on the CNC
side, check the following items:
1. Check parameter No. 1902:
A. If No. 1902=00000000, set No. 1905=00000000 and No. 1910 - 1919=0.
B. If No. 1902=00000001 or 00000010, set No. 1905 and No. 1910 - 1919 to the
correct value.
2. If No. 1815 B1=1, check No. 1910 - 1919. If the value is not 16 or 48, set No. 1815
B1=0.
3. Check that the FSSB Ready to Operate green LED is ON. If not, check the power to
the amplifier and the connection of the optical cable.
Although the outer detector is
recognized on the FSSB, the
feedback pulses are not correct.
Check parameter No. 1902.
1. If No. 1902=00000001, set No. 1905=01000000 or 10000000. Also set No. 1910 -
1919, 1936, and 1937 to the correct value.
2. If No. 1902=00000010, set the M0 and M1 connector numbers on the FSSB Axis
screen.
Cannot input the M1 or M2
connector number on the FSSB Axis
screen.
Check the ID of the pulse module on the FSSB screen. If the ID is not read correctly,
check the connection of the separate detector interface unit.
The setting value on the FSSB
screen changes the former setting
value after turning power OFF/ON.
After inputting the value, remember to press the [SETING] soft key on both the
Amplifier and Axis Setting screens.
P/S Alarm 5138 occurred. (FSSB :
axis set not complete)
Automatic setting has not completed yet. After inputting the value, remember to press
the [SETING] soft key on both the Amplifier and Axis Setting screens.
When using the manual setting, remember to set the parameters for No. 1902, 1905,
1910 - 1919, 1936, and 1937 to 0.
SV Alarm 466 occurred. (n axis :
motor / amp combination)
1. Check the combination between the motor and amp.
2. Check the current value in parameter No. 2165 and the FSSB Amplifier screen.
3. Load the servo initial parameter.
System Alarm 920 occurred after
changing parameter No. 1902 and
turning power OFF and then ON.
1. Disconnect the optical cable on the CNC side.
2. Turn power OFF and ON.
3. Set parameter No. 1902, 1905, 1910 - 1919, 1936, and 1937 to 0.
FSSB Automatic setting was not
done successfully in a two-path
control CNC.
Change CNC software (B0F1 / B1F1 / BDF1 / BEF1) version 04 or later.
The setting which uses the axis of
another path in the two-path control
CNC was not done successfully.
Change CNC software (B0F1 / B1F1 / BDF1 / BEF1) version 04 or later.