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MDS-D2/DH2 Series Instruction Manual
5.3 Characteristics Improvement
(2) Adjusting the cutting feed
To adjust the cutting rate, the NC axis specification parameter clamp speed (clamp) and acceleration/deceleration
time constant (G1t*) are adjusted. The in-position width at this time must be set to the same value as actual cutting.
• Determining the clamp rate and adjusting the acceleration/deceleration time constant
(Features)The maximum cutting rate (clamp speed) can be determined freely.
(Adjustment)Carry out cutting feed reciprocation operation with dwell at the maximum cutting rate and adjust the
acceleration/deceleration time constant so that the maximum current command value during
acceleration/deceleration is within the range shown below.
• Setting the step acceleration/deceleration and adjusting the clamp speed
(Features)The acceleration/deceleration time constant is determined with the position loop in the servo, so the
acceleration/deceleration FΔT can be reduced.
(Adjustment)Set 1 (step) for the acceleration/deceleration time constant and carry out cutting feed reciprocation
operation with dwell. Adjust the cutting feed rate so that the maximum current command value during
acceleration/deceleration is within the range shown below, and then set the value in the clamp speed.
Maximum tolerable current command value when adjusting the cutting feed acceleration/deceleration time constant
MDS-D2 Series (200V) MDS-DH2 Series (400V)
Motor
model
Max. tolerable
current command
value
Motor
model
Max. tolerable
current command
value
Motor
model
Max. tolerable
current command
value
Motor
model
Max. tolerable
current command
value
HF75 Within 245% HP54 Within 259% HF-H75 Within 245% HP-H54 Within 259%
HF105 Within 189% HP104 Within 210% HF-H105 Within 189% HP-H104 Within 210%
HF54 Within 294% HP154 Within 308% HF-H54 Within 294% HP-H154 Within 308%
HF104 Within 245% HP224 Within 231% HF-H104 Within 245% HP-H224 Within 231%
HF154 Within 266% HP204 Within 210% HF-H154 Within 266% HP-H204 Within 210%
HF224 Within 217% HP354 Within 210% HF-H204 Within 217% HP-H354 Within 210%
HF204 Within 217% HP454 Within 203% HF-H354 Within 231% HP-H454 Within 203%
HF354 Within 294% HP704 Within 154% HF-H453 Within 175% HP-H704 Within 154%
HF123 Within 133% HP903 Within 175% HF-H703 Within 168% HP-H903 Within 175%
HF223 Within 161% HP1103 Within 147% HF-H903 Within 203% HP-H1103 Within 147%
HF303 Within 168%
HF453 Within 205% HF-KP23 Within 175% HC-H1502 Within 119%
HF703 Within 168% HF-KP43 Within 175%
HF903 Within 203% HF-KP73 Within 168%
HF142 Within 133%
HF302 Within 147%
CAUTION
Always set the same value for the cutting feed time constant between the interpolation axes.
