Hach sc200, User Manual

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COMMUNICATION
Eaton ® 9130 UPS (700–3000 VA) User's Guide
S
164201718 Rev 3
www.eaton.com/powerquality
58
Relay Output Contacts
The UPS incorporates three programmable relay outputs with potential
free contacts for remote alarm indications: a standard relay port and two
outputs in the RS-232 communication port. See Figure 18 on page 53 for
the locations of the ports. An additional four relay outputs can be
obtained with the compatible Relay Interface Card.
Configure the relay outputs with the “Relay Configuration” setting in
“User Settings” on page 40.
W A R N I N G
The relay output contacts must not be connected to any utility connected circuits. Reinforced
insulation to the utility is required. The relay output contacts have a maximum rating of
30 Vac/1A and 60 Vdc/2A nominal values.
Table 5 shows the options for the relay output contacts.
Table 5. Relay Output Configuration Options
Signal Description
UPS ok Activated when the UPS is feeding the load on inverter or on
bypass and no alarms are active
On Bypass Activated when the UPS is NOT on bypass operation
On Battery Activated when the UPS operates on battery and the “On
Battery Notice Delay” time has expired
Battery Low Activated with the “Battery Low” alarm according to the
“Battery Low Alarm” setting
Ext. Charger On Controls an optional external battery charger on and off
Figure 22 shows a schematic of the relay output contacts.
Common
Normally Closed
3
2
Normally Open
1
Relay Output
Figure 22. Standard Relay Port Connections