NORD Drivesystems B1000 - Manual (Page 743)

www.nord.com G741
BRAKES
G1000 – Subject to Change Without Notice
Brake Size BRE5 BRE10 BRE20 BRE40 BRE60 BRE100 BRE150 BRE250 BRE400 BRE800
Brake torque
– max
[lb-ft] 3.7 7.4 15 30 44 74 110 185 295 590
[lb-in] 44 89 177 354 531 885 1330 2200 3500 7100
[Nm] 5 10 20 40 60 100 150 250 400 800
Power coil P
20
[W] 22 28 39 42 50 75 76 100 140 140
Nominal air gap
[in] 0.008 0.008 0.008 0.012 0.012 0.016 0.020 0.020 0.020 0.023
[mm] 0.2 0.2 0.2 0.3 0.3 0.4 0.5 0.5 0.5 0.6
Maximum air gap
(re-adjust) a
max
[in] 0.024 0.013 n/a * 0.035 0.039 0.043 0.043 0.047 0.047 0.047
[mm] 0.6 0.8 n/a * 0.9 1.0 1.1 1.1 1.2 1.2 1.2
Max brake pad wear -
must be replaced [in] 0.118 0.118 0.039 0.118 0.138 0.138 0.138 0.138 0.138 0.138
[mm] 3 3 1 3 3.5 3.5 3.5 3.5 3.5 3.5
Minimum brake
pad thickness [in] 0.177 0.217 0.295 0.374 0.453 0.492 0.571 0.571 0.650 0.650
[mm] 4.5 5.5 7.5 9.5 11.5 12.5 14.5 14.5 16.5 16.5
Max work per cycle W
rmax
[Jx10 3 ] 3 6 12 25 35 50 75 105 150 225
Work until re-adjust W
rn
[Jx10 7 ] 5 12 20 35 60 125 200 340 420 420
Heat load per cycle [J/s] 80 100 130 160 200 250 300 350 400 600
Release time (start) t
1
[ms] 35 45 70 80 120 160 200 220 230 400
Release time (start) t
1-OE
[ms] 15 15 28 28 75 110 110 N/A N/A N/A
Setting time (stop) t
2-AC
[ms] 70 95 140 175 210 280 350 500 800 1000
Setting time (stop) t
2-DC
[ms] 30 45 30 75 90 120 150 180 200 250
Setting time (stop) t
2-DCRP
[ms] 5 6 11 12 12 13 17 24 N/A N/A
IR relay delay (stop) t
2-IR
[ms] 18 18 18 18 18 18 18 18 18 N/A
Current – 250VDC coil [A] 0.09 0.11 0.16 0.18 0.19 0.31 0.31 0.4 0.6 0.6
Current – 225VDC coil [A] 0.09 0.13 0.18 0.20 0.22 0.35 0.36 0.5 0.6 0.6
Current – 205VDC coil [A] 0.11 0.13 0.22 0.24 0.28 0.44 0.45 0.5 0.7 0.7
Current – 180VDC coil [A] 0.12 0.16 0.21 0.25 0.30 0.46 0.47 0.6 0.8 0.8
Current – 105VDC coil [A] 0.21 0.32 0.36 0.46 0.60 0.88 0.89 1.1 1.3 1.3
Current – 24VDC coil [A] 0.92 1.17 1.63 1.75 2.08 3.10 3.20 4.2 5.9 5.9
Detailed Brake Performance Data
Release times
t
1
– Brake release time - Standard
t
1-OE
– Brake release time – Overexcitation (GP)
Set (stop) times
t
2
-
AC
– Brake set time – AC switching
t
2
-
DC
– Brake set time – DC switching
t
2
-
DCRP
– Brake set time – DC switching reduced power
t
2-IR
– Additional brake stopping of the IR relay
An increased air gap will alter the braking times.
Performance Data