|
DELAY
ON OPERATE |
|
Staggering the starting of two or
more motors. Thus preventing them coming on line at the same time. e.g.
compressors, air conditioning units, pumps etc.
Example: Showing staggered motor
starting of 2 motors.
|
 |
|
RECYCLING (ASYMMETRICAL) |
Allows an operation to be carried out at
certain time intervals on a continuous (repeat operation) basis.
e.g. Lubrication systems, opening/closing of valves etc.
Example: Showing a repeative Lubrication
process.
|
 |
|
STAR
DELTA START |
|
Used as a safety precaution to prevent the Star and
Delta contactors being energised simultaneously after initial three phase
motor start up. Example: Using an
M1EYD Timer
|
 |
|
TRUE
DELAY OFF (Delay ON Release) |
|
Maintaining power to a secondary
circuit when power to the main circuit has been removed.
e.g. Elevators, lifts, generator sets, pumps (overrun) etc.
Example:
Showing Fan overrun.
|
 |
|
INTERVAL |
Limiting the amount of time a machine is allowed to
run once it has been started.
e.g. mixers, alarms, security doors, fans, lighting circuits etc.
Example: Showing a limited period alarm
sounder.
|
 |
|
MULTI
ATTEMPT TO START |
|
Allows a preset number of attempts to start a motor.
If the motor fails to start in this number of attempts an alarm signal can
be sent.
Example: Showing a starter circuit using an M3MAS timer with a
phase monitor to remove the supply when the generator is up to voltage.
|
 |
