MGE UPS Systems S3 - Manual (Page 22)

Alarm if Utility voltage is not within proper limits. Contacts
are:
TB2-1 = NC, TB2-2 - Common, TB2-3 = NO.
A minor alarm will occur for any of the following:
1) inverter output or static transfer switch overload or short
circuit.
2) thermal warning or fault.
3) Input DC loss.
4) Static transfer switch failure.
5) 4 transfers to bypass within 4 minutes (on-line mode).
Contacts are: TB2-4 = NC, TB2-5 = Common, TB2-6 = NO.
A major alarm will occur when the load is not powered by the
Inverter or the Utility AC (static transfer switch or
maintenance bypass relay).
Two sets of contacts are
provided. Contact set 1 for utility failure alarm: TB2-7 = NC,
TB2-8 = Common, TB2-9 = NO. Contact set 2 for inverter
failure alarm: TB2-10 = NC, TB2-11 = Common, TB2-12 =
N0.
1.6.4 Front Panel
Controls
1.6.3.3 Major Alarm
1.6.3.2 Minor Alarm (Only
Available on Model
With Static Transfer
Switch)
1.6.3.1 Utility Failure (Only
Available on Model
With Static Transfer
Switch)
1 — 10 Introduction 86-153061-00
Topaz S3 Inverters 0.5 kVA, 1 kVA, & 2 kVA