GE lp33 20 series - Page 40

Critical Power
Modifications reserved
Page 40/43
GE_UPS_ISG_LPS_3UL_20K_30K_2US_V010.docx
Installation Guide LP33 Series 20 & 30 UL S2
Output signals on voltage-free contacts
On terminals X1 or J2connector 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 utility
18 -
Inverter ON
4 -
Stop operation
19 -
Battery boostcharge
5 -
Load on inverter
20 -
Battery earth fault
6 -
Utility 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 utility not syncrony
26 -
EPO (Emergency Power Off)
12 -
Bypass locked
27 -
ECO Mode ON
13 -
Bypass utility failure
28 -
General alarm (NC)
14 -
Rectifier utility 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
External bypass ON
External battery fuses
Voltage free contacts:
Max. DC / AC: 24V / 1.25A
IEC 60950 (SELV circuit)
Min. signal level: 5VDC / 5mA
Gen Set signaling
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. 5.4-1 / X1 and J2).
Since the Parameter for of the reading of the Generator function is password protected, call the nearest
Service Center for it's activation.
When this contact closes, it causes the change of certain settable functions such as:
 Enabling or disabling of synchronization 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 Center at +1-800-637-1738, or by E-mail at pqservice@ge.com for more
information.