MSS
Modbus over IP configuration
User Manual 10H52252UMA0 - Rev. 2 - 09/2019
47
Note1: this device Is equipped with a double Input EPO connector. Over customer request the input
function can be changed between AND function and OR function. If the selection is AND, the EPO
condition will enter only when both inputs are active (open contacts). In this case if any wiring fault
occurs this won’t cause any EPO. On the other hand, when a short circuit occurs over one of the two
lines the EPO will not work as expected because the current will keep on flowing into the short circuit.
This selection is preferred when the load power have priority against the EPO effective function. In
case of emergency other devices will act and insulate the load if required. When the customer selects
the OR function, UPS will enter EPO condition when one of the two inputs (or both) will activate. This
happens when one of the two lines is in short circuit and the other is functioning properly. This setting
brings the UPS operating in a similar condition like the old-style EPO does with additional wires
analysis. Read application note about CUBE EPO for further details.
The maximum cable diameter is 0.75 mm
2
.
WARNING
THE EXTERNAL PUSH-BUTTON MUST BE VOLTAGE FREE AND ISOLATED FROM ALL
SOURCES AND GND.
THE EXTERNAL EPO SUPERVISOR INPUT MUST NOT EXCEED 24V 1A.
2.3.12
Input Connector - XP11
Connection with customer plant:
12-wire connector used for dry contacts, only safe operating voltage will be connected here. Type (MCV
1.5/12-G-3.81) by PHOENIX contacts or equivalent. Complementary type (MC 1.5/12-ST-3.81) will be
included.
The current range of the contacts at 24V is 1A.
Connection should be as follows:
Figure 2-10 Connection of the connector XP11