Safety technology: MCB14x Document No.:
MG34Y104
Rev.: 06 23 October 2012 Page 18 of 25
Output
Output state/readout
Operation
Ramp
On
Braking ramp operation not enabled
Off
Braking ramp requested
STO_O
On
Drive enabled
Off
Drive locked
ExC
On
Drive energy staged
Off
Drive energy separated
SSO
On
Protective device enabled
Off
Protective device interlocked
Table 18: Assignment of output states – Safety operation
The safety output states correspond to the respective terminal states.
The Pr_1 and Pr_2 readout segments correspond directly to the respective initiator terminal or switch states. This
therefore allows alignment support and movement control.
Readout of fault states
If a fault occurs, then the Ramp, STO_O, ExC and SSO safety outputs are destaged and the corresponding fault
code is shown in the 7-segment display:
Figure 10: Principal illustration of fault readout
MCB14x LED speed indicators
3 LEDs allow the speed status to be controlled, based on the limit values to be monitored.
If the actual speed exceeds one or more limit values, then the corresponding LEDs go out.
The SLS LED is also controlled in the event the SLS operation is not enabled.
Figure 11: LED speed indicators
The LED switching thresholds are set by way of the following parameters:
LED
Parameter
Meaning
SMS
P 304
Monitored maximum speed
SLS
P 303
Second monitored speed
ZSP
P 302
Maximum permitted speed for defined standstill
Table 19: Parameter assignment of diagnostic LEDs
1
3
0
B
D
8
5
9
.1
0
Error category
Error number
