Roland VersaCamm VS-640 Service Notes page 247

Lift up the Tool Holder with the Tension Gauge (ST-002) and
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measure the pressure when the pen tip leaves the bed.
Adjust the parameter in [200gf] menu with [
keys for the pressure to be 195 to 205gf (1.9N to 2.0N).
Press [ENTER] key to save the settings.
Select [30gf] menu under [FORCE ADJUST] menu.
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Confi rm that the force is 25 to 35gf (0.25N to 0.35N) when
the tip of the pen leaves the bed by lifting the Tool Holder
with the Dial Tension Meter (ST-013).
If the value of the force is not proper, repeat the adjustment
again.
ST-002
] and [ ]
30gf
17 16
ST-013
4-49
200gf
56 57
[ENTER]
[ ] [ ]
[ENTER]
[ ] [ ]