Fig. 3-94 2836 – SBT (Safe Brake Test)
- 2836 -
Function diagram
87654321
fp_2836_54_eng.vsd
DO: SERVO, VECTOR
S120/S150/G130/G150
22.11.12 V04.08.00
SI Extended Functions - SBT (Safe Brake Test)
p9500 (12000 μs)
p10209 x p10210[n]
p10209 x p10220[n]
r10231.1 Start brake test
r10231.0 Brake test selection
r10231.2 Brake selection
1
0
r10234.6 Request to external brake
Closing internal brake
r10231.2 Brake selection
r10234.0 Brake test selection
r10231.5 Status external brake
r10231.1 Start brake test
+
+
r10241 SI SBT diag M_l
1
0
Internal brake is closed
&
M_set brake test
M
t
r10231.0 = 0 Brake test not selected
r10231.1 = 0/1 Start brake test
r10231.0 = 0/1 Brake test selected
t
p10208
Ramp time
p10211/p10221
Test duration
p10208
Ramp time
p10212/p10222 Monitoring position tolerance
M
set
M
Load
0
r10241
Diagnostic:
statically load
torque
r0899.2 = 1
Brake test torque
p10210/p10220 *
p10209
r10240
Diagnostic:
max test
torque
r0899.2 = 1
Brake closed
r1482 n_ctrl I-M_outp
r9708[0] SI Mtn safe pos
Start brake test
<1> If tolerance bandwidth (20 %) of test torque is exceeded A01784.26 will be displayed.
<2> At A01784.17 = 1 with Bit 6 = 1 or A01784.23 = 1:
If value in p1217 is too low, the brake will be closed too late at SBT-Start. Adapting of p1217 is necessary.
p10212/p10222
Monitoring position tolerance
A01784.23
1
0
0
r0063 n_act
r0063
Speed monitoring
A01784.17
Monitoring
test torque
Monitoring
<2>
<1>
r10231.3 = 0
Select direction of
rotation = positive
1
0
0
1
-1
r10234.1 = 0
Master control
ctrl
r10234.1 = 0
Master control
ctrl
r0899.2 = 0 r10234.1 = 1 Master control drive (n
set
= 0)
r10234.0 = 1 Brake test selected
r10231.3 Select direction of rotation
r10231.4 Select test sequence
0
1
1
0
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