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How to wire ext stop for TEsysU if controlled over communication?

External stop (NC contact) must be wired between the communication module output OA1 and TesysU coil. For this purpose it is not possible to use pre-wired terminal block, because the connection between communication module and TesysU coil must be done manually. Wiring will be done:
comm. module.OA1 - ext stop NC contact - base.A1
comm. module.COM - base.A2
We recommend to use LUB12 or LUB32 instead of LUB120 or LUB320 due to existence of A1,A2 terminals (open-style).