Configuration 343
How to configure SS1 with speed limit activated SBC
Note: If you configure the SS1 with speed limit activated SBC function, this activates
the same function in the SSE function (see section How to configure SSE with speed
limit activated SBC on page 356). This does not activate the SBC in the STO
function. If necessary, configure the SBC also in the STO function (see section
Configuring STO on page 331). See also the note on page 49.
Example 1: The figure below shows an example of the SS1-t function with speed
limit activated SBC set-up:
• SS1 function activated (SS1.01
SS1 activity and version = Version 1)
• SS1 with time monitored ramp (SS1.13 SS1 type = SS1-t)
• SAR1 emergency ramp (200.112 SAR1 ramp time to zero, always with the SS1
function - see section Configuring SAR on page 361)
• delay for STO activation after SS1 request: 2000 ms
(SS1.14 SS1-t delay for STO = 2000 ms)
• automatic acknowledgement (STO.02 STO acknowledgement = Automatic)
• redundant emergency stop button connected to input
(SS1.11 SS1 input A = DI X113:1 & X114:1)
• single output connected (SS1.21 SS1 output = DO X114:9)
• brake connected to redundant output, diagnostic pulses activated
(SBC.21 SBC output = DO X113:7 & X114:7, SAFEIO.53 and SAFEIO.56 = On),
SAFEIO.21 Safety relay 1 output = DO X113:7 & X114:7)
• speed limit activated brake in use, speed below which the brake and STO are
activated: 180.0 rpm (SBC.15 SSE/SS1 SBC speed = 180 rpm)
• delay for activating STO after brake is zero (STO and SBC are activated at the
same time) (SBC.12 STO SBC delay = 0ms)
• delay for activating the brake and STO after the SBC speed limit has been
reached: 0 ms (SS1.15 SS1-r ramp zero speed delay for STO = 0ms)
• when no encoder is in use: delay for defining the safety function as completed,
that is, an estimated time in which the motor brakes to a stop from the maximum
speed: 1200 ms (SBC.13 SBC time to zero speed
= 1200 ms)
• STO is activated if brake feedback fails (SBC.22 SBC feedback action = STO)
• brake feedback input connected to input
(SAFEIO.22 Safety relay 1 feedback = DI X113:2)
• feedback input type NC (inverted state compared with the brake relay)
(SAFEIO.23 Safety relay 1 feedback type = Mechanically linked NC contacts).
• See also section Configuring mute times on page 393.
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