EXCEL 50 INSTALLATION INSTRUCTIONS
19 EN1B-0101GE51 R1105D
Fig. 35. Attaching of screw terminal blocks
Adjusting the MMI Display Contrast
Front Door Mounted with MMI
1. Unplug the screw terminal block B to Port B while the
controller is connected to the power supply.
2. Adjust the display contrast with a slotted screwdriver or
a cross-tip screwdriver.
Fig. 36. Adjusting the display contrast
3. Attach screw terminal block B to Port B.
DIN Rail Mounted with MMI
1. Unmount the controller from the DIN rail.
2. Unplug the screw terminal block B to Port B while the
controller is connected to the power supply.
3. Adjust the display contrast with a slotted screwdriver or
a cross-tip screwdriver as shown in Fig. 36.
4. Attach screw terminal block B to Port B.
5. Mount the controller on the DIN rail again.
COMMUNICATION
The Excel 50 Controller has the capability to communicate
with the Excel Building Supervisor (XBS/XBSi, and Enterprise
Buildings Integrator) and other EXCEL 5000 devices via the
C-Bus. The Excel 50 Controller also has the capability to
communicate with devices on a L
ONWORKS network. A further
communication option is connection to a Meter-Bus. All
communications options are dependent upon the application
module, and not all options are available on one module (see
Table 16).
A modem/ISDN terminal adapter may be connected to Flash
EPROM versions with V2.01.00 software or newer to allow re-
mote communication with the controller.
Table 16. Application module versions
module model module type
XD50-E Standalone
XD50-F Standalone/Flash EPROM
XD50-FC* C-Bus/Flash EPROM
XD50-FCS C-Bus/Meter-Bus/Flash EPROM
XD50-FL* LONWORKS BUS/Flash EPROM
XD50-FCL* C-Bus/LONWORKS BUS/Flash EPROM
XD52-FC C-Bus/Flash EPROM (Large RAM)
XD52-FCS
C-Bus/Flash EPROM (Large Ram), Meter-
Bus
*In the case of smoke control applications, use the "UUKL"
version of the Excel 50.
NOTE: EPROM versions can be upgraded by direct firmware
download via serial port or C-Bus.
IMPORTANT
Electrostatic discharge can damage the application
module. Always disconnect the power supply when
plugging in and unplugging the application module.
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