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Eaton Ferrups FX UPS P-164000906 Eaton Ferrups FX User’s Guide P-164000906—Rev 05
Table 11. Relay-MS Card
No
Function
Description
1
Not used
2*
Battery fault (Config 2)
UPS power off (Config 1)
Config 2:
a battery fault occurred
3
Not Used in Eaton FX
Not Used in Eaton FX
4
Load on utility**
The load is protected. The UPS supplies
the load using utility power (not from the
battery).
5
Common
Config 2:
volt-free pin.
Config 1 or 3:
pin connected to GND.
6
Load on automatic bypass***
The load is not protected. The UPS
supplies the load using utility power. If
utility power fails, the load will not be
supplied.
7
Low battery
The battery has dropped below the
preset warning level (depending on UPS
setup). If the voltage level continues to
drop, the UPS will no longer be capable
of supplying power to the load.
8
UPS ON, load powered
The UPS is operational and can supply
power to the load, whether utility power
is available or not, whether the UPS is on
the bypass or not.
9
Load on battery**
The load is protected. The UPS supplies
the load from the battery (not using
utility.
NOTE 1
*The function of this pin varies, depending on the configuration. the battery fault
information is available only in Config 2.
NOTE 2
**Load on utility and Load on battery are complementary signals. They cannot be
activated simultaneously.
NOTE 3
***Not available on line-interactive UPS. No manual bypass.
Table 12. Industrial Relay-MS
Relay
Function
Description
K1
UPS ON, load powered
The UPS is operational and can supply
power to the load, whether utility power
is avalible or not, whether the UPS is on
the bypass or not.
K2
Load on battery
The load is protected. The UPS supplies
the load from the battery (not using utility
power).
