Description, device design, dimension drawing
2.9 Signaling contacts/control contacts
Power supply system SITOP PSU8600
62 Manual, 09.2018, A5E36758446-5-76
For two UPS modules in the system, the threshold that is set refers to the sum of the
charged battery modules in both UPS modules.
Signaling contact READY
③
13-14 open
(quiescent state)
• Charge state of the UPS module or two UPS modules < x %
• Or buffer mode with "ON "contact – or deactivated by a remote
command
Charge state of the UPS module or two UPS modules ≥ x %
The signaling contact buffer mode "BUF" is in the form of a relay contact (NO contact,
terminals "23" and "24"
④) and signals that the system is in the buffer mode.
For two buffer components (UPS module, buffer module with signaling contact) in the
system, both modules simultaneously signal buffer mode using the signaling contact. It is
sufficient to wire one of the two contacts.
"BUF" ④ signaling contact
23-24 open
(quiescent state)
Normal operation.
Connected battery module is charged (if required).
23-24 closed Power failure, buffer mode
System is buffered via the buffer component(s).
The signaling contact "OK" is in the form of a relay contact (NO contact, terminals "33" and
"34"
⑤), and signals that there is no fault in the connected battery circuit.
33-34 open
(quiescent state)
• Incomplete connection to the battery module
(not available, cable (+, -) interrupted, fuse defective or ruptured)
• Existing connection (+, -, COM1, COM2) is interrupted
• Battery module is connected with reverse polarity
• Alarm when the deep discharge limit is reached
• Battery service life limit reached
• Battery module has been deeply discharged
• Service the connected BAT8600 (replace the batteries)
• Firmware update
Normal operation (no fault in the connected battery circuit)
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