Section 75
00-02-0522
04-06-11 -
3 -
iGUARD Operating Instructions
Operating Sequence
The iGUARD controller, while reprogrammable, follows a standard operating sequence. This
operating sequence is basically a set of machine states that happen in a pre-determined order.
Machine states can be set to zero if not needed, or adjusted to fit the application. For the basic
operating sequence, see the iGUARD Sequence Appendix in the Installing the
Mimic/Annunciator DM/A section, this document. The iGUARD operating sequence includes
the following modes:
Ready to Start Mode
Automatic start mode ready for a contact closure to initiate an
automatic start and run sequence.
Prestart Delay Mode
A timer used to prevent nuisance starts, or to warn nearby
personnel that automatic equipment is about to start (set to 0
to bypass).
Prelube Mode
In larger generators there may be a requirement for
automatic lubrication prior to cranking (set to 0 to bypass).
Preheat
Timer set to provide the correct amount of precrank operation
of the air intake heaters used to facilitate starting in cold
conditions. (Set to 0 to bypass).
Cranking / Crank Rest Mode
Engine is attempting to start and will go through the number
of selected starting attempts.
Crank Disconnect / Engine
Running Mode
Engine speed is greater than the crank disconnect.
Warmup Mode
Timer to allow system to run unloaded for selected time (set
to 0 to bypass).
At Load Mode
Generator is running at load.
Power Good Mode
This mode is to prevent nuisance start/stops. The controller
continues running but monitors the remote start contact while
in this mode. The power good timer must expire before the
system can proceed to cooldown. Any further call to run
resets the power good mode timer to its preset value.
Cooldown Mode
Generator runs unloaded for a preset time.
Phase-out
/ Discontinued
Product
Check
Availability
