MAR7000
21
1/2013, P/N 01757 Rev. B
Resetting the MAR7000
Types of Reset
If the MAR7000 is not operating correctly or
if
a low limit alarm has occurred
, the MAR7000
should be reset (reinitialized). Any reset inter-
rupts normal operation, and three types of reset
exist:
• A
warm start
is generally the least disruptive
option (restarting normal operation the quick-
est).
• If problems still persist, try a
cold start
.
• If problems still persist (or major changes in a
firmware update have taken place)
restoring
factory defaults
(and reconfiguring and repro-
gramming the MAR7000) may be required.
Warm and Cold Starts
CAUTION
During a restart, relays go to their normally
open state. The restart process lasts about
ten seconds, and it may result in several
changes of state for an output, turning
equipment off and on abruptly. Before reset-
ting the MAR7000, manually override equip-
ment as needed. If a large fan is controlled
by the MAR7000, for example, set a mini-
mum off delay time in the Advanced > Appli-
cation > Additional Setup > Fan Setup menu.
A
warm start
(after zeroing out objects during
the restart process) restores present values of ob-
jects to their last values before the restart
(until
they are updated by the MAR7000’s programs),
restarts the controller’s Control Basic programs,
and leaves configuration and programming intact.
CAUTION
If the checksum test in RAM fails during a
warm start, a cold start is performed instead.
A
cold start
(after zeroing out objects during the
restart process) returns all object values to their
relinquished defaults
(until they are updated by
the MAR7000’s programs), restarts the controller’s
Control Basic programs, and leaves configuration
and programming intact.
NOTE: Menu changes may take up to about two
minutes to write to nonvolatile Flash
memory. If power to the MAR7000 is lost
during this time, changes may be lost.
ADVANCED
APPLICATION
CB PROGRAMS
COMMUNICATION
DATE/TIME
DEVICE
LIMITS
SECURITY
DEVICE
INSTANCE: 1
NAME: MAR7000_101
LOCATION: KMC Controls
RESTART:
RESTORE FACTORY: NO
WARM START
NOTE: When power is restored after an outage,
the MAR7000 will attempt to do a warm
start as long as the values in RAM are
retained (up to about four hours). If the
the RAM checksum test fails, a cold start
will be done instead.
To perform a WARM start,
from the MAR7000
menu, select Advanced > Device > Restart >
Warm Start (or momentarily remove power to the
MAR7000).
To perform a COLD start
from the MAR7000
menu, select Advanced > Device > Restart > Cold
Start.
Restore Factory
Restore Factory (restoring the MAR7000 to the
factory settings)
clears present values, restores
the object database/configuration to the defaults,
restarts the controller’s (factory installed) Control
Basic programs.
NOTE: The MAC address and device instance are
not
restored to their original defaults.
CAUTION
When returned to factory defaults, relays
will go to their normally open state. Before
restarting the thermostat, manually override
equipment as needed.
CAUTION
After a return to factory defaults, applications
are unconfigured. You must select the desired
application and appropriate settings before
connected equipment will operate properly.
(See
(Advanced) Application Options on page
.)
