CTEK Automation Control Application APN007 - Manual (Page 48)

Application Note – Automation Control Application
APN007 25 July, 2014
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Timer/Alarm Override – Start [Note – Changed In Release 4.02.02]
cP1 P2 P3 P4
Timer/Alarm Override – Start provides a mechanism to override (disable) all alarms for a
specified (in minutes) period of time. P1 and P2 define the pin that will represent the state of
override, and P3 and P4 define the period of time for which alarms will be disabled.
As with all timers Timer/Alarm Override is stopped with Timer/Any - Stop
P1 = i for input or o for output (numeric)
P2 = pin number. This is where override condition is represented – Use this pin in Stop command
P3 = i for input, o for output or u for user defined value of override duration in minutes
P4 = pin number or user defined override duration value
Example: Disable alarms for the number of minutes specified by input pin 11 and show override
status on output pin 18.
Action: Timer/Alarm Override – Start
Parameters: o 18 i 11
Timer/Any – Stop
This will stop any class of Timer shown above.
Timer/Any – Stop P1 P2
P1 = i for input or o for output
P2 = pin number
Example – Stop a time previously started on output pin 5
Action: Timer/Any – Stop
Parameters: o 5
Important Notes on Motor Group Control
a) Parameters P3 (Outputs), P4 (Inputs), and P5 (Outputs) require sequential assignment
starting at the pin specified for the number of elements in the sequence. For example, a
controller having 3 pumps might assign output pin 12 to be the starting pin for the first
motor. This would automatically require that output pins 13 and 14 be the starting pins for
motors 2 and 3 respectively.
b) All motor control outputs (defined by P3) must be configured so that their initial state is
set to zero during automation control start up.
c) All override pins (defined by P4) must be configured to execute override_state_change
function when override pin turns on or off. This means that override_state_change must
be defined as both the “Off Program” and “On Program” on all override pins.