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RH5 7.1 NC Unit Adjustment SERVICE MANUAL 7.1−8 DA3SEC−84−290−A0 7.1.6 Fine adjustments Make fine adjustments if the below situations occur . (1) If the origin return monitor shakes after adjusting all axes and removing …

7.1 NC Unit Adjustment

SERVICE MANUAL

RH5

7.1−7

DA3SEC−84−290−A0

(2) Acceleration time check

(a) Set Cn−08 of the AC motor driver as below indicated.

Z−axis  316

(b)Set Cn−09 of the AC motor driver as below indicated.

Z axis  316

(3) In the EOP mode, check each of the axes stops at its respective origin

(Origin monitor lights up).

(4) Other

Run the program data in the CONT mode for a short time. While doing so, check for strange noises

coming from the table or loose screws. Rather than move all tables at once, you can make a different

program for each table and adjust them one by one.

RH5

7.1 NC Unit Adjustment

SERVICE MANUAL

7.1−8

DA3SEC−84−290−A0

7.1.6 Fine adjustments

Make fine adjustments if the below situations occur.

(1) If the origin return monitor shakes after adjusting all axes and removing the extension board.

Adjust motor driver offset.

Adjust Cn−00−0003 values while watching the monitor. (Within r 30 for the reference setting)

(2) If parts are slightly out of position when positioning is complete.

Adjust the torque command filter timer of the motor driver.

Adjust the Cn−17 value while watching the effected axis move.

=CHECK=

If changing speed loop gain (Cn−04) during adjustment, return it to the standard setting before

making the above fine adjustments. Also, if the chattering cannot be corrected by making fine

adjustments, gradually lower speed loop gain within the 1 to 5 range, and then make the fine

adjustments.

If speed loop gain is lowered too much, motor response will slow down.

Therefore, keep speed loop gain as high as possible.

Chattering will occur if speed loop gain is not lowered when the table is not fully assembled and

load is light. Therefore, make adjustments again when the table is completely assembled.

7.2 AC Servomotor Adjustment

SERVICE MANUAL

RH5

7.2−1

DA3SEC−84−300−A0

7.2 AC Servomotor Adjustment

DA3SEC−84−300−A0

Sentence No.

7.2.1 AC Motor Driver Check

(1) Release the servolock and turn ON the main power supply.

(2) Memory switch (Cn−01) setting (Use the digital operator.)

Set the Cn−01 bits as below indicated.

0000000000000000X, Y and Z axes

Bit F Bit 0

000000000000000H axis

(3) Memory switch (Cn−02) setting

Set the Cn−02 bits as below indicated.

000

Bit 2 Bit 0

(4) Speed loop gain (Cn−04) setting

Set the Cn−04 as below indicated.

XY axis

CN−04  145

Z axis

(40−62 feeder)  200

(80 feeder)  180

(5) Turn OFF the main power supply.