Chapter 7: Service and troubleshooting
172 EST3X Technical Reference Manual
Rule 1: A hardware layer module must be replaced with the same model number
module.
Rule 2: An operator layer control-display module must be replaced with the same
module number control-display module.
Rule 3: A substitute hardware layer module must have an identical control-
display module installed as the module it replaces.
Rule 4: A substitute module should be installed in the same card location as the
module it is replacing.
Adding hardware
When hardware is added to a cabinet, a portion of the network configuration
database must also be changed. The extent of the changes depends on the rule
relationships between the added component and the rest of the network. Once
the new hardware has been configured in the 3-SDU, revised copies of the
database must then be downloaded to the control panel.
Hardware troubleshooting
PS10-4B Power Supply troubleshooting
Under most conditions, a defective power supply will be identified by the system,
and annunciated as a trouble. The system may continue to operate nearly
normally, as the battery connected to the faulty supply will automatically be
switched into the circuit, as the load demands.
You can connect the panel to the PC running the 3-SDU and perform a power
supply diagnostics check. Refer to the 3-SDU diagnostics help topic for details.
Table 38: Voltage specifications
Voltage
Regulated
Special application
AUX output current
3.0 A max. per circuit
6.0 A total, shared
3.0 A max. per circuit
9.0 A total, shared
6.0 A total, shared
94 to 264 VAC, 50/60 Hz
ing current 1.5 or 3 A, selectable
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