
IPDP - installation and operating instructions
8
Picture 1 Basic module - motherboard
The connection of relay contact terminals is shown on pict. 2. The “NO”
designation means an idle-disconnected contact, “COM” means a pin contact
(middle) and “NC” means an idle-connected contact. The contacts of both
switches are galvanically isolated each other and from other guard circuits. The
variants of connection are shown on picture. 3 and 4.
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