CNC Motion Setup/Testing Utility
P/N 70000635C
All rights reserved. Subject to change without notice.
November 2009
22
Balancing the DSP
2
Board (F6)
On systems that use an ANILAM Servo Amplifier Board (see Figure 14,
Digital Brushless AC Servo Amplifier, P/N 33001279, AC Systems),
measurements for this procedure can be made at the J2 input connector
with the Servo Amplifier Test Board, (see Figure 12, ANILAM Servo
Amplifier Test Board, P/N 33001399, AC Systems).
NOTE: If ANILAM did not provide the servo amplifiers, follow the
guidelines for balancing supplied by the manufacturer.
Refer to Figure 13, ANILAM DSP
2
Board Balance Pots, P/N 33001102,
AC Systems. Measure command voltages across TP1 and TP3 of the
test board for AC brushless systems with differential DSP
2
boards. For
the earliest AC systems with single-ended DSP
2
boards, measure
command voltages across TP1 and TP2 of the test board.
NOTE: These signals can also be found on Pin #1 and Pin #3 of the J2
input connector on the ANILAM Servo Amplifier Board.
All DSP
2
Boards are adjusted at the factory and should be within limits.
Only balance the DSP
2
Board if it is not at 0 VDC (±0.001 V).
NOTE: On 3000M Kit style systems, the DSP
2
Board is located inside
the CNC console. On 3000M OEM systems, the DSP
2
Board
is
located in the CNC chassis. Remove only the top cover of the
console or open the CNC chassis to access the Board. Balance
the DSP
2
Board with the servos off, initially. Next, verify the
DSP
2
Board balance with the servos on, and correct for voltage
offset as required.
Install the Servo Amplifier Communications Cable, P/N 33001389,
between the amplifier's J1 connector and the CNC's RS-232 port.
1. Press Balance (F6) to output a zero voltage signal to the axis.
2. Press
START.
3. Refer to Figure13, ANILAM DSP
2
Board Balance Pots, P/N
33001102, AC Systems. Make adjustments for axis outputs 0–3 on
the DSP
2
Board at potentiometers R108-R111 respectively.
4. Adjust the potentiometer for the selected axis until the voltage across
the pins is 0 VDC (± 0.001 V).
5. Press MANUAL (F4) to cancel the test.