Programming instructions

- Page 7 -
IL 30-471 (E)
OVERALL FUNCTIONAL DESCRIPTION
There are four main groups of functions included in the
ATS single board controller.
1. Voltage Sensing Functions
Choices of voltage sensing functions are selectable for
Normal and Emergency sources as follows by means of
factory programming.
• 1 phase or 3 phase sensing
• Either or both the undervoltage and
overvoltage sensing.
Dip switches are used to select the pickup and dropout
points for Normal UV, Normal OV, Emergency UV and
Emergency OV functions.
For undervoltage sensing function:
• Available pickup settings: 100%, 95%, 90%
and 85% of normal;
• Available dropout settings: 5%, 10%, 15%,
and 20% from pickup setting.
For overvoltage sensing function:
• Available pickup settings: 105%, 110%, 115%
and 120% of normal;
• Available dropout settings: 5%,10%, 15% and
20% from pick-up setting.
2. Frequency Sensing Functions
The controller can be programmed to include either or both
the Underfrequency and Overfrequency sensing for the
Normal and Emergency Sources.
Dip switches are used to select the normal frequency of
the power sources and the pickup points.
The normal frequency settings are 50 Hz or 60 Hz. The
dropout points are fixed at 2 Hz differential.
Available pickup settings for the under frequency function
are:
• at 60 Hz nominal = 56, 57, 58, 59 Hz
• at 50 Hz nominal = 46, 47, 48, 49 Hz.
Available pickup settings for the over frequency function
are:
• at 60 Hz nominal = 61, 62, 63, 64 Hz
• at 50 Hz nominal = 51, 52, 53, 54 Hz.
3. Time Delay Functions
The controller can be programmed to include three differ-
ent time delay functions - TDNE, TDEN and TDEC. Each
timing function has four different timing ranges as shown
below. It can be set to any one of the ranges by moving
the appropriate dip switches.
• 0.1 sec. to 60 sec.
• 0.16 min. to 10 min.
• 1 min. to 60 min.
• 3 min. to 200 min.
4. On Board Indicators
Ten ‘LED” type indicators are installed on the controller’s
circuit board for the following functions.
Norm Volt -- LED on indicates the voltage level of the
Normal Source is within preset limits.
Norm. Freq -- LED on indicates the frequency of the Nor-
mal Source is within preset limits.
-- LED flashes indicate the frequency of the
Norma( Source is out of preset limits.
-- LED off indicates the Normal frequency
sensing option is not installed.
Emer. Volt -- LED on indicates the voltage level of the
Emergency Source is within preset limits.
Emerg. Freq -- LED on indicates the frequency of the
Emergency Source is within preset limits.
-- LED flashes indicate the frequency of the
Emergency Source is out of preset limits.
-- LED off indicates the Emergency fre-
quency sensing option is not installed.
TDNE RUN -- LED flashes indicate TDNE time delay
function is in progress.
TDEN RUN -- LED flashes indicate TDEN time delay
function is in progress.
TDEC RUN -- LED flashes indicate TDEC time delay
function is in progress.
NR ON -- LED on indicates the output relay NR is
energized.
ER ON -- LED on indicates the output relay ER is
energized.
ECR ON -- LED on indicates the output relay ECR is
energized.
ON-BOARD PROGRAMMABLE OPTIONS
ATS Single Board controller can be pre-programmed in the
factory with the following ATS control functions on board:
1) Undervoltage sensing on Normal Source
2) Overvoltage sensing on Normal Source
3) Underfrequency sensing on Normal Source
4) Overfrequency sensing on Normal Source.
5) Undervoltage sensing on Emergency Source
6) Overvottage sensing on Emergency Source
7) Underfrequency sensing on Emergency Source
8) Overfrequency sensing on Emergency Source
9) Time Delay Normal to Emergency
10) Time Delay Emergency to Normal
11) Time Delay Engine Cool Down
12) Preferred Source Selection