Baumuller b maXX 5000 - Page 339

BM5030 with Safety Function
Instruction handbook bmaXX 5000
Document No.: 5.09021.19
339
of 346
B
D.7.3 Cycle time STO
It is allowed to change to the state ready-for-operation only once within 2 seconds (t
BB
),
in order to protect the internal charging and discharging resistors from overheating.
Figure 142: Cycle time STO
t
S_on
: Reaction time period of STO A = high and STO B = high
until the closing of the DC link switch,  max. 5 ms
t
S_off
: Reaction time period of STO A = low and/or STO B = low
until the opening of the DC link switch,  max. 5 ms
t
C_on
: Time period from STO A = high and STO B = high to ready-to-operate = high,
 depends on the capacitive load
t
C_off
: Time period from STO A = low and/or STO B = low to DC link discharged
 depends on the capacitive load
t
BB
: Ready-to-operate cycle time,  min. 2 s
t
A
: Time period between two times ready-to-operate active
t
S_on_Z
: Reaction time period of STO A = high and STO B = high
until the closing of the DC link switch, in case t
A
< t
BB
Ready-to-operate
DC link