Adjusting The Mmi Display Contrast; Front Door Mounted With Mmi; Din Rail Mounted With Mmi; Communication - Honeywell Excel 50 Installation Instructions Manual

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.
EXCEL 50 INSTALLATION INSTRUCTIONS

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
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
XD50-E Standalone
XD50-F Standalone/Flash EPROM
XD50-FC* C-Bus/Flash EPROM
XD50-FCS C-Bus/Meter-Bus/Flash EPROM
XD50-FL* L W
ON
XD50-FCL* C-Bus/L
XD52-FC C-Bus/Flash EPROM (Large RAM)
C-Bus/Flash EPROM (Large Ram), Meter-
XD52-FCS
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.
19
W network. A further
ON ORKS
module type
B /Flash EPROM
ORKS US
W B /Flash EPROM
ON ORKS US
EN1B-0101GE51 R1105D