“Operating the Novus FXM “#35 Low Battery Warning
Voltage.” on page 40.
•
C4:
This contact is energized after the FXM has been in
Inverter mode for 2 hours. It can be called the “Timer”
contact.
You can change the pre-programmed 2 hours to match
your operating conditions.
See
“Programming the Dry
Contacts and the Clock, Setting the Timer Contact.” on
page 52.
•
C5:
This contact is energized when the FXM is operating
close to the specified limits. It can be called the “Alarm”
contact.
•
C6:
The factory default layout for this contact is a relay
that is energized when the FXM is in Line or Inverter
modes and is de-energized when it is in Standby mode.
It provides 48VDC (500 mA) or 24VDC (500 mA) from
the external batteries to an external fan or other equip-
ment. C6 can be factory-configured as a dry contact.
+48VDC, 500mA
(FXM 1100/2000, 650-
48) or +24VDC (FXM
650-24) from the
external batteries.
Microprocessor
18
16
17
+
Contact
C6
Figure 3 .6- 48VDC/24VDC Contact Layout
(De-energized Shown, Factory Default for C6)
10
Contacts C7 and C8
These optically isolated inputs let you attach an external
switch panel for remote control of the FXM or have the FXM
control Alpha Technologies’s optional Automatic Transfer
Switch (ATS).
•
User Input (C7):
This relay has 3 contacts to control the
FXM (Figure 3.7). They are:
19 (S1):
Shorting this contact starts the
FXM
’s self test. Also
see “Operating the
FXM
, Self Test.” on page 40.
20 (S2):
Shorting this contact activates an alarm. Also see
“Troubleshooting”, User Input Alarm on page 87.
21 (S3):
Shorting this contact disables the AC output. There
is no AC output power, the LCD display shows “SHUTDOWN”
(Model 1000 only), but the
FXM
is still energized. A manual
restart is required to put the
FXM
back to normal operation.
17
Overview
Doc# 017-201-B0 Rev 0408
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