Operator`s manual
A4 Programming the Dry Contacts and the Clock
On the surveillance version, the functions of the 2 front panel contacts can be programmed to
meet your specications with RS–232 communications. You can also adjust the unit’s date and
time.
A4.1 Programming the Dry Contacts
The functions of dry contacts can be changed with RS-232 communications.
For example, to change contact C1:
1. To see how it is currently programmed, type c1 (all lower case) and press ENTER.
2. The UPS responds with *c1=1 where the * shows the unit responded to your command.
A value of 1 indicates that it is programmed to be the On Battery indicator as shown in the
Dry Contact Conguration table below.
3. To change the contact, type c1=X where X is 1 to 8 and press ENTER.
The UPS responds with *c1=(1 to 8). The programming is done for that contact. Repeat as
necessary for the other contacts.
Each contact can only be programmed for one function at a time; it cannot show
multiple conditions.
4. To reset the contacts to the factory default (C1=On Battery, C2=Low Battery), type default
and press ENTER. The UPS responds with *default, showing it is reset.
Finished
Note: The timer contact closes after the UPS has been in battery mode for a pre-programmed
amount of time. The default setting is 2 hours (14,400 0.5 second steps) but it can be set to
a maximum value of 8 hours (57,600 0.5 second steps). To change the time, after the contact
has been programmed to be a timer contact:
1. To see how it is currently programmed, type timer (all lower case) and press ENTER.
The UPS responds with *timer=XXXXX where XXXXX is the setting in 0.5 second steps.
For example a reading of 120 shows the timer is set to 60 seconds.
2. To set the timer, type timer=X and press ENTER where X can be from 1 (0.5 second) to a
maximum of 57,600 steps (8 hours).
The UPS responds with *timer=(value you have set).
Dry Contact Conguration
1= On Battery 3= Timer 1 5= Fault 7= Timer 2
2= Low Battery 4= Alarm 6= Disabled 8= Timer 3
Appendix
Doc# 017-220-B0 Rev. 01 / 07 19