Replacing safety Modules and Trouble shooting

Replacing safety Modules and Trouble shooting

Safety Modules

Description

The safety module relay is connected to all the safety circuits of a machine as well as the blue reset light. When the relay is engaged it opens other relays allowing all the motor relays to have 3 phase power at the live side. without the safety module engaged you will have no power to any motors or switches except for the blue reset light and some other 24V DC components in the control panel. 

The safety relay needs 4 things
  1. Continuity between S11 and S12 (these usually go through E-Stops and safety sensors) 
  2. Continuity between S21 and S22 (these usually go through E-Stops and safety sensors)
  3. A1 needs 24V DC power (This can be interrupted by things like the cage sensor and pressure sensor) 
  4. on the old model you need a second of continuity to go through S52 and S34 (these wires go through the switch side of the blue button) 
    1. To get the blue light to light up and then turn off you need to utilize the NC circuit on the old module this is 41 and 42. you need to bring 24V dc to 41 and out 42 and then into the blue light and back to 0V.
    2. On the new model connect Y1 and Y2 to the NO contact of the blue reset light
    3. To engage the blue light on the reset button you need to use and 24V that passes through relay 3K2 then to the light and back to 0V. Then we need to connect A1 and for 3K2 to 34 on the safety Module. 
  5. line 13-14 and 23-24 a go to A1 on the two main relays that withhold power to any of the motors or major components.

Extra notes on New Modules

Top dial Start dial (how would you like the machine to turn back on?) 
  1. Basic Manual (what we use with the blue reset button) 
  2. Same as 1 but when you start up the machine you are forced to test the safety functions before it will release
  3. Strict release you must release the reset button before the relay engages 
  4. Strict release but with morning test (you are forced to test the safety functions before it will release) 
  5. 5-8 These do the exact same things as 1 through 4. They are only used to tell the relay to use advanced timing delays if you clip an extra expansion module onto the right side of the unit (which you don't currently have).
Bottom Dial Function dial (what kind of safety device is wired to it) 
  1. Standard E-Stops and pull cords (Expects two separate mechanical switches. It actively pulses the wires to check if they are crushed and short-circuiting together.)
  2. Standard switched plus strict timing (Same as 1, but it forces both switches to open/close at the exact same time (within 0.5 seconds). If a heavy gate sags and hits one switch before the other, it throws an error.)
  3. Light Curtains (Turns off the relay's internal short-circuit checking. This is used because smart devices like light curtains or laser scanners already do their own internal wire checking.)
  4. Light curtains plus strict timing (Same as 3, but with the 0.5-second strict timing rule applied.)
  5. Single wire basic safety (Used for older or lower-risk setups where you only run a single wire loop through your E-stops instead of a redundant, dual-wire loop.)
  6. Safety Mats and Bumper edges (Specifically tuned to read the changing electrical resistance of pressure-sensitive safety mats on the floor.)

Image Gallery

New Module

Old Module

 

 






Attached are scans of the new safety module manuals with a list of error codes