S&C Instruction Sheet 515-600 25
Field Adjustment and Programming
If a different data-transfer bit rate is needed to estab lish communications
between the Micro-AT control and the personal computer, press the CHANGE
key. The following display will appear:
CONFIG: COM 0 BIT RATE
ENTER ACCESS CODE
Press each digit of the access-code number, and then press the ENTER key.
The display will change to:
CONFIG: COM 0 BIT RATE
19200
OR
3 8400
Press the “
” key to select the other possible selections: 2400, 4800, 9600,
or 38400 bits per second. Then, press the ENTER key.
STEP 3.
Set the voltage-related operating parameters of the Micro-AT control using the
following procedure:
(a) Press the VOLTAGE menu key. The following dis play will appear:
VOLTAGE:
PRESS LAST/NEX T ITEM
(b) Press the NEXT item key. The first item of the
Voltage
menu will appear on
the first line of the display:
VOLTS: LOSS OF SOURCE
(c) Press the NEXT item key repeatedly to scroll to each field-adjustable item
of the
Voltage
menu, as listed in Table 2 on page 26.
Is the factory setting for each item (shown in the last column of Table 2,
in boldface type) appropriate for this installation? If not, change it.
For example, here is the display for
VOLTS: LOSS OF SOURCE
with its
factory setting, 85.0 Volts:
VOLTS: LOSS OF SOURCE
8 5 . 0 VOLTS
CHANGE
If the loss-of-source voltage is to be set to some other value, press the
CHANGE key. If the display prompts to reenter the access-code number, do
so. The display will now look like this:
VOLTS: LOSS OF SOURCE
8 5 . 0 VOLTS
Enter the desired loss-of-source voltage. If, for exam ple, 102 Volts is the
desired value, the “1,” “0,” and “2” keys would be pressed—followed by the
ENTER key. The display will change to:
VOLTS: LOSS OF SOURCE
1 02 VOLTS
CHANGE
The other field-adjustable items of the
Voltage
menu can be changed in
the same manner.
Voltage Menu
