ReFlx 45 Collision Avoidance System Instruction Manual
September 2017
Page 12 of 17
Table 3: Stopping Distance (based on Deceleration Time and Crane Speed)
Decel Time* (s)
3
4
5
6
8
10
Crane Speed – fpm
(mpm)
Stopping Distance at Max Speed – ft (m)
100 (30.48)
2.5 (0.76)
3.33 (1.02)
4.17 (1.27)
5 (1.52)
6.67 (2.03)
8.33 (2.54)
110 (33.53)
2.75 (0.84)
3.67 (1.12)
4.58 (1.40)
5.5 (1.68)
7.33 (2.23)
9.17 (2.80)
120 (36.58)
3 (0.91)
4 (1.22)
5 (1.52)
6 (1.83)
8 (2.44)
10 (3.05)
130 (39.62)
3.25 (0.99)
4.33 (1.32)
5.42 (1.65)
6.5 (1.98)
8.67 (2.64)
10.83 (3.30)
140 (42.67)
3.5 (1.07)
4.67 (1.42)
5.83 (1.78)
7 (2.13)
9.33 (2.84)
11.67 (3.56)
150 (45.72)
3.75 (1.14)
5 (1.52)
6.25 (1.91)
7.5 (2.29)
10 (3.05)
12.5 (3.81)
160 (48.77)
4 (1.22)
5.33 (1.63)
6.67 (2.03)
8 (2.44)
10.67 (3.25)
13.33 (4.06)
170 (51.82)
4.25 (1.30)
5.67 (1.73)
7.08 (2.16)
8.5 (2.59)
11.33 (3.45)
14.17 (4.32)
180 (54.86)
4.5 (1.37)
6 (1.83)
7.5 (2.29)
9 (2.74)
12 (3.66)
15 (4.57)
190 (57.91)
4.75 (1.45)
6.33 (1.93)
7.92 (2.41)
9.5 (2.90)
12.67 (3.86)
15.83 (4.82)
200 (60.96)
5 (1.52)
6.67 (2.03)
8.33 (2.54)
10 (3.05)
13.33 (4.06)
16.67 (5.08)
210 (64.01)
5.25 (1.60)
7 (2.13)
8.75 (2.67)
10.5 (3.20)
14 (4.27)
17.5 (5.33)
220 (67.06)
5.5 (1.68)
7.33 (2.23)
9.17 (2.80)
11 (3.35)
14.67 (4.47)
18.33 (5.59)
230 (70.10)
5.75 (1.75)
7.67 (2.34)
9.58 (2.92)
11.5 (3.51)
15.33 (4.67)
19.17 (5.84)
240 (73.15)
6 (1.83)
8 (2.44)
10 (3.05)
12 (3.66)
16 (4.88)
20 (6.10)
250 (76.20)
6.25 (1.91)
8.33 (2.54)
10.42 (3.18)
12.5 (3.81)
16.67 (5.08)
20.83 (6.35)
260 (79.25)
6.5 (1.98)
8.67 (2.64)
10.83 (3.30)
13 (3.96)
17.33 (5.28)
21.67 (6.61)
270 (82.30)
6.75 (2.06)
9 (2.74)
11.25 (3.43)
13.5 (4.11)
18 (5.49)
22.5 (6.86)
280 (85.34)
7 (2.13)
9.33 (2.95)
11.67 (3.56)
14 (4.27)
18.67 (5.69)
23.33 (7.11)
290 (88.39)
7.25 (2.21)
9.67 (2.95)
12.08 (3.68)
14.5 (4.42)
19.33 (5.89)
24.17 (7.37)
300 (91.44)
7.5 (2.29)
10 (3.05)
12.5 (3.81)
15 (4.57)
20 (6.10)
25 (7.62)
310 (94.49)
7.75 (2.36)
10.33 (3.15)
12.92 (3.94)
15.5 (4.72)
20.67 (6.30)
25.83 (7.87)
320 (97.54)
8 (2.44)
10.67 (3.25)
13.33 (4.06)
16 (4.88)
21.33 (6.50)
26.67 (8.13)
330 (100.58)
8.25 (2.52)
11 (3.35)
13.75 (4.19)
16.5 (5.03)
22 (6.71)
27.5 (8.38)
340 (103.63)
8.5 (2.59)
11.33 (3.45)
14.17 (4.32)
17 (5.18)
22.67 (6.91)
28.33 (8.63)
350 (160.68)
8.75 (2.67)
11.67 (3.56)
14.58 (4.44)
17.5 (5.33)
23.33 (7.11)
29.17 (8.89)
360 (109.73)
9 (2.74)
12 (3.66)
15 (4.57)
18 (5.49)
24 (7.32)
30 (9.14)
370 (112.78)
9.25 (2.82)
12.33 (3.76)
15.42 (4.70)
18.5 (5.64)
24.67 (7.52)
30.83 (9.40)
380 (115.82)
9.5 (2.90)
12.67 (3.86)
15.83 (4.83)
19 (5.79)
25.33 (7.72)
31.67 (9.65)
390 (118.87)
9.75 (2.97)
13 (3.96)
16.25 (4.95)
19.5 (5.94)
26 (7.92)
32.5 (9.91)
400 (121.92)
10 (3.05)
13.33 (4.06)
16.67 (5.17)
20 (6.10)
26.67 (8.13)
33.33 (10.16)
*Include S-curve times in the total deceleration time
To determine the Decel Time in Table 3, parameters from the IMPULSE® drive can be used in the
following equation:
