Service and troubleshooting
EST3 Installation and Service Manual 8.45
Modules
When a module is replaced with another module of the same
type, upon automatic re-mapping, the replacement module will
be assigned the personality code of the module originally
installed at that map location. If a module is replaced with a
module of a different type one of three things can happen.
If you replace a single address module such as the SIGA-CT1, or
SIGA-CC1, with a different type of single input module, the
circuit will re-map all devices; however the new device type will
not operate, due to incompatible personality codes. A map fault
will be generated because the actual device differs from the
expected device. The data entry program must be used to accept
the new device type and clear the map fault.
Notes
• Do not replace factory-programmed devices such as pull
stations and MM1 modules with a SIGA-CT1.
• For mapping purposes, give all manual pull stations the
device type pull, regardless of their model numbers.
If a dual address module replaces a single address module, the
panel will attempt to re-map all devices, however the circuit will
not be successfully re-mapped. A map fault will be generated
because the actual device differs from the expected device, and
the dual address module will not operate. The data entry program
must be used to accept the new device type and clear the map
fault.
If a dual address module is replaced with a single address
module, the panel will never attempt to re-map all devices
because the panel does not see enough devices (one address less)
to automatically re-map the circuit. The panel remains in the
map pending mode and will not re-map. If the panel could be
forced to re-map all devices, the circuit would still not be
successfully re-mapped, because the actual device count differs
from the expected device count. The panel will be in trouble with
a map fault. The SDU program must be used to accept the new
device type and clear the map fault.
Device type replacement
If a different Signature device model is substituted for the
suspect device, when the device count is correct, the Signature
controller module will automatically re-map the circuit. A
trouble will occur at the address of the suspect device as the
result of a map fault, because the known good device’s
parameters differ from those of the suspect device that was
removed from the circuit. You must accept the parameters,
which may be changed later, of the known good device to
remove the map fault.
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