Setting Of Status Bits By The Sbc Function; Table 14: Setting Of Status Bits By The Sbc Function; Table 15: Setting Of Status Bits By The Sbc Function - KEB COMBIVERT F6 Instructions For Use Manual

FUNCTIONAL DESCrIPTIONS

6.3.3 Setting of status bits by the SBC function

The current through the brake can measured at brake release.
co82 ext. modules ctrl word
Bit 0
Value
0
1
Depending on the hardware, the number of activated brakes, the setting of co82 and the current
measurement the following bits in sb29 are set:
Current measurement
activated Brake
A
0.1 A...Imax
co21 bit 4=1
Table 14: Setting of status bits by the SBC function
Current measurement
activated brake(s)
A
0.1 A...Imax
co21 bit 4=1
B
0.1 A...Imax
co21(B) bit 4=1
Table 15: Setting of status bits by the SBC function
„–" in the table means, the respective bit is not affected by the function.
The control of the brake is reset to not released and the status LED is set to red when there is an error
caused by the current measurement.
Attention
28
safety module current sense
COMBIVIS text
SM-CS-off
SM-CS-on
Single axis module
on (co82 = 1)
Current 0 7
<0.1 A – 0
– 0
>Imax 1 1
Double axis module
on (co82 = 1)
Current 0 7
<0.1 A – 0
– 0
>Imax 1 1
<0.1 A – –
– –
>Imax 1 –
Pay attention to response time
Since the current rise is slowly at high inductances of the brakes, the
error response time to a fault current is max. 100 ms.
Function
Brake current measurement off; at the state of the
safety module (sb29) only the bits 8 & 22 are set. Bit
0, 7 & 21 are unaffected by the current measurement.
Brake current measurement on (default)
bit in sb29
8 0
1 –
0 –
0 –
bit in sb29
8 21 22 0
1 – – –
0 – – –
0 – – –
– 0 1 –
– 0 0 –
– 1 0 –
off (co82 = 0)
bits in sb29
7 8
0 1
0 1
0 1
off (co82 = 0)
bits in sb29
7 8 21 22
0 1 0 1
0 1 0 1
0 1 0 1
0 1 0 1
0 1 0 1
0 1 0 1