You need to define cartesian zone in the dcs. Connect the SAFETY laser sensor to DCS Input and do the configuration of the dcs
In R-30iB (system software v8.xxp/yy) you're not able to use a "ceiling speed" for the DCS Cartesian Speed Check (CSC). You can set a threshold such that IF the robot moves faster, it will stop.
Basically this is a safety-reated monitoring function, that will stop the robot if the monitored speed is greater than specified.
The only way of CONTROLLING the speed safely is to use the OVERRIDE function within the CSC.
Example: You want the robot to move at maximum 250mm/s. You then have to take into account the max speed of the robot. Let's say that this robot can be programmed with motions up to 4000mm/s. To make sure that no motion is faster than 250mm/s (because then it will stop, and we don't want unnecessary stops now, do we? 
) you need to set an appropriate override value in the CSC.
250/4000 = 6,25% override. So let's make it 6%.
The problem is that override affects ALL motions, regardless of motion type (J, L, C or A) and programmed speed. This means that all of you already slow motions that maybe already is programmed with speeds <250mm/s will be performed at only 6% of their programmed speed. Not very nice either.
Enter: the possibility to control speed with the CSC!
From v9.40p/36 it's possible to select a cartesian limit for the speed control, not just an override value. This will then work as an upper limit, much like the T1 mode will cap motions programmed with speed >250mm/s to 250mm/s, but motions programmed with slower speeds will run at the programmed speed.
You do need also the Constant Path option for this to work.
I would also like to use SSI[12] to enable/disable the POSSPD function. However, I couldn’t find detailed instructions on the wiring process in any of the manuals.
Does anyone have information on how to wire it correctly?
SSI[12] is a status signal, meaning that it is set by the system depending on (you guessed it) the current status of the system.
So, this signal is not something you can control directly, rather it will reflect whether or not you have enabled the DCS Position/Speed Check function.
On another note, this signal is (according to the DCS manual) not supported on R-30iB or R-30iB Mate, and you stated that you're using an R-30iB, so...
SSI[12] simply reflects wheter or not Position/Speed check is enabled in the system or not.
The Enable/Disable setting can be made from the DCS Menu -> Pos./Speed check setup:
Please be more specific, which setting in which menu?
Disabling inputs are generally specified in the setup of each functionality, for instance a CPC (Cartesian Position Check). The disabling input must be a safe signal, but it could be a hardwired input, a safety input through a safe fieldbus (such as Profisafe) or a safe internal relay (SIR).
I would suggest that you get the DCS manual and have a look.
