7.5.4
Programming the Dry Contacts
The Alpha FXM front panel contacts (C1 and C2) can be programmed to meet your specifications. In addition, C3
to C5 are available with optional additional dry contacts as well as two optional user inputs 3 and 4. Each contact
can only be programmed for one function at a time and cannot show multiple conditions.
The functions of dry contacts can be changed with HyperTerminal. For example, to change contact C2: To see
how it is currently programmed, type
c2
(all lower case) and press
Enter
.
The Alpha FXM responds with
*
c2=2
where the
*
shows the unit responded to your command. For example: a "
2
"
shows it is programmed to be the
Low Battery
indicator as shown in Table J.
To change the contact, type
c2=X
where X is 1 to 14 and press
Enter
.
The Alpha FXM responds with
*
c2=(1 to 14)
.
For example, to change the C2 contact to be the Temperature
indicator, type
c2=11
Table J
— Dry Contact Configuration Settings
1= On Battery
Used for remote indication of the On Battery condition
2= Low Battery
Used for remote indication of the Low Battery condition
3= Timer 1
See "Setting the Timer Contact Interval" on page 83.
4= Alarm
Used for remote indication of an Alarm condition
5= Fault
Used for remote indication of a Fault condition
6= Disabled
Dry contact is disabled, i.e. never energizes
7= Timer 2
See "Setting the Timer Contact Interval" on page 83.
8= Timer 3
See "Setting the Timer Contact Interval" on page 83.
9= 48Vdc
(Not available)
N/A
10= Generator
Reserved for future use
11= Temperature
See "Controlling the external fan by temperature triggered dry contact" on
page 84.
12= Low Battery,
Shutdown
Contact will activate when battery is low (factory-defined level) and the
FXM is running in Inverter mode. Contact is deactivated when battery level
returns to an acceptable value.
13= Low Battery and Line
Used for remote indication that the battery is low in Line mode. This
condition can be used to interpret the health of the battery.
14= LVD (Low Voltage
Disconnect)
The dry contact is energized when the battery voltage is greater than the
DC CONNECT set voltage (see Table B) and will de-energize if the battery
voltage drops below 42V for 48V system (21V for 24V system). The default
reconnect voltage is set to 48VDC and can be adjusted up to 51VDC.
Page
81
to
106
Summary of Contents for FXM 350 Series
Page 1: ...Alpha FXM Series 350 USER MANUAL...
Page 21: ...Page 20 to 106...
