EnerSys Alpha Micro 100, Installation And Operation Manual

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017-220-J0 Rev C
9.7.4 Programming the Dry Contacts
The Alpha Micro 100 front panel contacts (C1 and C2) can be programmed to meet your specifications. Each con-
tact 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 Micro 100 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.
To change the contact, type c2=X where X is 1 to 14 and press Enter .
The Alpha Micro 100 responds with *c2=(1 to 14) . For example, to change the C2 contact to be the Temperature
indicator, type c2=11
Table Q — 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" on page 68.
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" on page 68.
8= Timer 3 See "Setting the Timer Contact" on page 68.
9= External Vdc Not available on Micro 100.
10= Generator Reserved for future use.
11= Temperature Not available on Micro 100.
12= Low Battery, Shutdown
Contact will activate when battery is low (factory-defined level) and the unit 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 LVD
CONNECT set voltage (see "Control Parameters" on page 32) and will de-energize if
the battery voltage drops below 21V.
15= Output Relay The dry contact is used for energizing external output relay. The external AC contactor
can be controlled for disconnect/reconnect by configuring one of the dry contacts as
Output Relay. Output relay option is built-in for Micro 100.
Caution:
On 230Vac models, any relay when configured to “Output relay” is wrongly
triggered during transitions to and from Boost 1 and Boost 2 modes while in AVR
Reduced mode.