OPM_LPS_33E_10K_30K_4CN_V010.doc 76/82 Operating Manual LP 33 / 10-20-30 kVA
Output signals on voltage-free contacts
On terminals J3 or J4 connector 6 of the following 28 signals can be selected from the display
(access only with password): MENU / PARAMETER MENU / LEVEL 2: SERVICE.
0 - No signal 15 - Battery discharge
1 - Buzzer 16 - Manual bypass ON
2 - General alarm (NO) 17 - Rectifier ON
3 - Load on mains 18 - Inverter ON
4 - Stop operation 19 - Battery boostcharge
5 - Load on inverter 20 - Battery earth fault
6 - Mains failure 21 - Battery fault
7 - DC overvoltage 22 - Relay input 1
8 - Low battery 23 - Relay input 2
9 - Overload 24 - Relay output ON
10 - Overtemperature 25 - Relay output OFF
11 - Inverter-mains not syncrony 26 - EPO (Emergency Power Off)
12 - Bypass locked 27 - IEM Mode ON
13 - Bypass mains failure 28 - General alarm (NC)
14 - Rectifier mains failure
Programmable functions on input contacts (X1 - J2)
Some UPS functions can be activated by parameters (access with password only) when an
external NO contact is closed on:
No function Inverter On
Inverter OFF Generator ON
Print all Status relay
Voltage free contacts:
Max. DC / AC: 24V / 1.25A
IEC 950 (SELV circuit)
Min. signal level: 5VDC / 50mA
Gen Set signalling
If an Emergency generator set supplies the UPS in case of utility failure and the generator is
particularly unstable in frequency, it should be suitable to install the signal “generator on” on
terminals X1 / 11, 22 (Normally Open voltage-free contact) or on connector J2 / 11, 24 (see Fig.
10.2.1-1 / X1 and J2).
When this contact closes, it causes the change of certain settable functions such as:
• Enabling or disabling of synchronisation and consequently the load transfer to generator.
• The battery recharge inhibition during the generator operation, or after what delay from
generator start the battery will start to be recharged.
Consult your nearest Service Centre for more information.
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