User manual

Description, device design, dimension drawing
2.3 Switches and buttons
SITOP UPS1600 / UPS1100
22 Operating Instructions, 05.2014, C98130-A7628-A1-4-7629
2.3.1.3
Jumper variants
On/Off (pin 9)
The wire jumper on the signal connector ④ between pin 9 and pin 10 (see Figure 2-4 Signal
connector (Page 16)) is used to enable/disable the buffer mode.
Buffer mode is only possible if the wire jumper ON/OFF is closed, or for UPS1600 devices
with interface, also if the rotary coding switch connection threshold is at the "REN" position.
From firmware release V1.20, the wire jumper ON/OFF has priority over the position of the
connection threshold rotary coding switch.
As a consequence, it is possible to enable or disable buffer mode using a floating contact
(e.g. a contact in the plant or system). The contact is switched instead of the ON/OFF wire
jumper. (Note: For reasons relating to noise insensitivity, approximately in the range
5...10 mA, Umax = 15 VDC, SELV: Imax = 10 mA)
Note
The external circuit must meet the requirements relating to SELV circuits according to
EN60950
-1.
Changes are also effective in the buffer mode.
Table 2- 1 With interface (up to firmware release less than V1.20)
Rotary coding
switch,
buffer time
Rotary coding
switch,
connection
threshold
Wire jumper ON/OFF to ground
Result
OFF
21 - 25
Yes
Buffering not permitted
0.5 - MAX 21 - 25 Yes Buffer mode permitted
(buffer time in
accordance with the
settings or infinite
buffer time)
OFF, 0.5 - MAX
21 - 25
No
Buffering not permitted
OFF, 0.5 - MAX REN Not relevant The software settings
apply