Crosshead Fails To Move; Stand Fails To Communicate With The Gauge; Stand Fails To Communicate With The Pc; Stand Fails Height Test - Mecmesin Multitest 0.5d Service And Repair Manual

Multitest 0.5d, 1d & 2.5d
Service and Repair Manual
i. Check that the limit switch rod moves freely.
ii. If the limit switch rod doesn't move freely then remove base from
stand and check that the micro switch spacer closest to the base
casting hasn't rotated causing it to catch on the base casting.
iii. Check that the limit switch is connected to the motor control PCB.
iv. Check that the Opto reflector has been correctly positioned.
v. If all of the above are ok then replace the limit switch.

8) Crosshead fails to move:

i. Check that the motor is correctly wired to the motor control PCB.
ii. Check that the Opto reflector has been correctly positioned.
iii. Check that the motor and the ballscrew couplings have been
tightened.

9) Stand fails to communicate with the gauge:

i. Check that the gauge loom is securely connected to the back of the
stand.
ii. Check that the communication loom has been correctly connected to
the motor control PCB.
iii. Using a D.V.M check the continuity of the communication loom.
iv. Check that the com's loom is wired correctly.
v. If all of the above are ok then replace the motor control PCB.
NOTE: The above checks are assuming that the gauge and connector
loom being used are in working order and that the gauge has been
correctly configured to work with the stand.

10) Stand fails to communicate with the pc:

i. Check that the rs232 loom is securely connected to the back of the
stand.
ii. Check that the rs232 loom has been correctly connected to the motor
control PCB.
iii. Using a D.V.M check the rs232 loom for continuity.
iv. Check that the rs232 loom has been correctly wired.
v. If all of the above are ok then replace the motor control PCB.
NOTE: The above tests are assuming that the rs232 loom being used to
connect the stand to a pc is in working order and that the pc being used
has been set up correctly.

11) Stand fails height test:

Number 022-005
Issue Number: 08 Page 42 of 58