Wieland SP-SDIO - Safety Mats and Bumper; Diode Pairs for Safety Mats

Connecting devices
Wieland Electric GmbH | BA000966 | 07/2016 (Rev. C)
43
Safety mats and bumper
888457611
Table 23: Safety mats connection
Electrical connection: Example from samosPLAN5+
Short-circuit-forming
safety mat in 4-conductor
technology, at test output
Channel 1: Contact between
T1 and I1
Channel 2: Contact between
T2 and I2
Short-circuit-forming
multi-safety mat in 4-
conductor technology, at
test output
Channel 1: Contact between
T1 and I1
Channel 2: Contact between
T2 and I2
Table 24: Function of safety mats
Function
Info
Parallel connection
Possible
Series connection
Possible
ATTENTION
Make sure that the switch-off condition is sufficient!
The actuation period for safety mats and bumper must be at least as high as the maximum
value for the "test period" of both test outputs used in order to ensure that the switch-off
condition will be detected and that a sequencing error will not occur.
NOTICE
You can find additional information in the operating instructions for the safety mats.
Diode pairs for safety mats
888461963
In order to connect multiple short-circuit safety mats to an SP-COP, SP-SDI, or SP-SDIO modu-
le, you have to use the following Wieland terminal block:
Type: WKFN 2.5 E/35 GO-URL
Order No.: 56.703.8755.9
The two internal diodes of this terminal block have a common anode that has to be connected
to a test output (Tn or X) of the SP-COP, SP-SDI, or SP-SDIO module.
In order to connect to independent safety mats, you will need two terminal blocks.
Illustration 20: Block diagram of the internal wiring WKFN 2.5 E/35 GO-URL
4.1.6
4.1.7