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UPS 8 – 15 kVA, 230V 50/60 Hz output
User’s Guide
1022403
Revision B1
29
Relay outputs
The UPS incorporates a programmable relay output with potential free contacts at X57 for remote
alarm indications. It is rated for max. 30 VAC 1 A or 60 VDC 0,2 A nominal values. Additional
(4) relay outputs can be obtained with the X-slot compatible AS/400 Relay Module (optional).
Warning!
The relay contacts must not be directly connected to mains related circuits. Reinforced
insulation to the mains is required.
Programmable signal inputs
The UPS incorporates two programmable inputs (X44, X45). Use of a non-polar (relay) control
input is recommended. The pins must be shorted with maximum resistance of 10 ohm in order
to activate the specific input.
Note!
Please note the polarity of the inputs as indicated in the external control connections if
used with a polarity control.
The default and programmable settings for the signal inputs are
a) Disable Bypass Operation
If active the automatic transfer to the static bypass is prevented.
b) Charger off
If active the batteries charging is disabled. In case of mains power outage the discharge of
batteries is supported.
c) Remote ON/OFF
If active the UPS output turns off regardless of mode of operation. Auxiliary power, fan,
communications and rectifier/battery charger shall remain functional. Restart initiated
immediately when inactive.
d) Request Bypass
If active the UPS transfers to bypass if bypass voltage, frequency and synchronisation are ok.
e) Request Normal
If active the UPS transfers to inverter operation if not prohibited by EPO or alarm condition.
f) Force Bypass
If active the UPS is forced to static bypass operation regardless of the bypass status.
g) External Battery Breaker Status
If active the UPS knows that the batteries are disconnected.
h) Building alarm 1-6
These can be activated separately or at the same time with other building alarms.
i) Not in use (default)
j) Shutdown
If active the UPS will shutdown immediately.
k) Delayed Shutdown
If active the UPS will shutdown after user configurable delay time. Restart initiated
immediately when inactive.
l) Normal/Bypass
If active the UPS transfers to bypass if ok. If inactive the UPS transfers to inverter when
possible.