Mitsubishi Electric MELDAS MDS-B-SVJ2 Series - Coasting Amount

Chapter 9 Characteristics
9-10
9-4-2 Coasting amount
The motor coasting amount when stopped by a dynamic brake can be approximated using the
following expression.
C
MAX =
No
60
· te + ( 1 +
J
L
J
M
) · (A · No
3
+ B · No)
C
MAX : Maximum motor coasting amount (turn)
No : Initial motor speed (r/min)
J
M : Motor inertia (kg·cm
2
)
J
L : Motor shaft conversion load inertia (kg·cm
2
)
te : Brake drive relay delay time (sec) (Normally, 0.03sec)
A : Coefficient A (Refer to the table below)
B : Coefficient B (Refer to the table below)
Fig. 9-5 Dynamic brake braking diagram
Table 9-4 Coasting amount calculation coefficients
Motor type JM (kg·cm
2
) A B Motor type JM (kg·cm
2
) A B
HC52 6.6 16.13×10
–11
11.93×10
–5
HC-SF52 6.6 16.13×10
–11
11.93×10
–5
HC102* 13.6 14.97×10
–11
10.03×10
–5
HC-SF102 13.6 14.97×10
–11
10.03×10
–5
HC102 13.6 4.00×10
–11
9.38×10
–5
HC-SF152 20.0 2.96×10
–11
10.03×10
–5
HC152* 20.0 2.96×10
–11
10.03×10
–5
HC-SF202 42.5 25.60×10
–11
16.07×10
–5
HC152 20.0 2.96×10
–11
10.03×10
–5
HC-SF352 82.0 7.75×10
–11
20.76×10
–5
HC202* 42.5 25.60×10
–11
16.07×10
–5
HC-SF53 6.6 15.99×10
–11
10.71×10
–5
HC202 42.5 25.60×10
–11
16.07×10
–5
HC-SF103 13.6 17.70×10
–11
9.24×10
–5
HC352* 82.0 14.00×10
–11
21.54×10
–5
HC-SF153 20.0 1.84×10
–11
15.49×10
–5
HC53 6.6 15.99×10
–11
10.71×10
–5
HC-SF203 42.5 15.08×10
–11
26.92×10
–5
HC103 13.6 3.53×10
–11
11.58×10
–5
HC-SF353 82.0 7.77×10
–11
41.74×10
–5
HC153 20.0 1.84×10
–11
15.49×10
–5
HC203* 42.5 17.24×10
–11
27.42×10
–5
HC-RF103 1.5 2.04×10
–11
2.07×10
–5
HC-RF153 1.9 1.52×10
–11
2.04×10
–5
HC103R 1.5 2.04×10
–11
2.07×10
–5
HC-RF203 2.3 0.96×10
–11
2.73×10
–5
HC153R 1.9 1.52×10
–11
2.04×10
–5
HC203R 2.3 0.96×10
–11
2.73×10
–5
HA-FF053 0.063 0.11×10
–11
16.21×10
–5
HA-FF13 0.095 0.15×10
–11
12.72×10
–5
HA40N 9.8 8.46×10
–11
31.23×10
–5
HA-FF23 0.35 0.58×10
–11
9.35×10
–5
HA80N 19.6 2.95×10
–11
16.21×10
–5
HA-FF33 0.5 0.61×10
–11
8.23×10
–5
HA100N 68.5 8.02×10
–11
27.75×10
–5
HA-FF43 0.98 1.42×10
–11
7.60×10
–5
HA200N* 131.0 4.41×10
–11
37.69×10
–5
HA-FF63 1.2 1.46×10
–11
6.83×10
–5
HA053N 0.19 0.50×10
–11
43.36×10
–5
HA13N 0.37 0.54×10
–11
27.27×10
–5
HC-MF053 0.019 0.35×10
–11
2.17×10
–5
HA23N 0.98 1.04×10
–11
18.11×10
–5
HC-MF13 0.03 0.16×10
–11
1.27×10
–5
HA33N 1.96 1.50×10
–11
12.23×10
–5
HC-MF23 0.088 1.38×10
–11
0.90×10
–5
HA43N 9.8 8.53×10
–11
31.41×10
–5
HC-MF43 0.143 1.29×10
–11
0.70×10
–5
HA83N 19.6 2.40×10
–11
20.90×10
–5
HC-MF73 0.6 4.29×10
–11
0.87×10
–5
HA103N* 68.5 6.43×10
–11
46.14×10
–5
(Note) The asterisk "*" in the motor type indicates the value for a combination with an amplifier having a one-rank lower capacity
than the standard.
OFF
ON
te
OFF
ON
OFF
ON
Emergency stop (EMG)
A
ctual dynamic brake operation
Initial speed: No
Time
Motor speed
Coasting amount
Dynamic brake control output