0850/0850-T1 User Manual
Matrix Machine Tool (Coventry) Limited 38 / 231
6.1 Spindle Warm-Up
As with any type of grinding spindle, it is recommended that the spindle is warmed up for a period of
time before it is used for workpiece grinding or wheel dressing cycles. This is especially so when the
machine has been shutdown or left standing idle for periods >8hrs.
Procedure
1. Start the machine at the machine control panel [MASTER START].
2. Close the operator access guard door.
3. Select [JOG] mode and then start the spindle [SPINDLE START]. The spindle will start and
run at the default speed 500rpm with the spindle override set to 100%.
If you want to warm-up the spindle at the typical grinding speed then select [MDA] and
[SETUP] mode at the MCP then enter the required speed using the command
S1=<desired spindle speed in rpm>.
For example, if you wanted to run the spindle at 1000rpm then enter S1=1000 in the MDA
command window followed by pressing [CYCLE START] to execute the command.
WARNING
If spindle warm-up is performed with a grinding wheel attached to the spindle
then DO NOT operate or program the spindle speed (RPM) to exceed the
maximum rated speed of the grinding wheel.
4. Select the wheel balancer screen [Menu Select] > [Balancer] and select the [AUTO]
balance function.
5. Let the spindle continue to run uninterrupted for 20~30mins.
6. Stop the spindle [SPINDLE STOP].
7. The spindle warm procedure is now complete. You can continue to use the machine as
normal.
8. Done.
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