
Installation
6.6 Connecting the control contact and signaling contacts of the buffer module
Power supply system SITOP PSU8600
160
Manual, 09.2018, A5E36758446-5-76
6.6
Connecting the control contact and signaling contacts of the buffer
module
Buffer modules with double-layer capacitors have one control contact and two signaling
contacts.
●
Buffer operation can be enabled, inhibited or exited using control contact "X1" and "X2".
●
Information about the charge state of the buffer module can be obtained via signaling
contact "13" and "14".
●
Information about buffer operation can be obtained via signaling contact "23" and "24".
Control contact
The control contact is implemented as contact pair and when delivered has a wire jumper.
Instead of the wire jumper, a floating contact can be switched in the plant or system. This
means for a scheduled operational shutdown of the power supply, buffer operation is
prevented, so that the buffer module is not unnecessarily discharged. Buffer mode is
immediately exited if the contact is opened during buffering.
Note
When closed, the contact must have a resistance < 10 Ohm.
The function of the control contact is described in Chapter "Buffer modules (Page 59)" and in
Chapter "Activating and deactivating buffer operation (Page 100)".
You can obtain more information about the assignment of the control contact in Chapter
"Connections and terminal designations (Page 32)".
Signaling contacts
The signaling contacts are NO contacts, and allow information about the operating state of
the buffer module to be processed further.
Note
The contact rating is 30 V AC/0.5 A; 60 V DC/0.3 A; 30 V DC/1 A.
The signaling circuit must fully comply with the requirements relating to SELV circuits.
The function of the signaling contact is described in Chapter "Buffer modules (Page 59)".
You can obtain more information about the assignment of the signaling contacts in Chapter
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