Siemens SPCK420 User Manual page 14

The left and right soft function keys are context sensitive keys to navigate through menus/programming.
7
Proximity device receiver area
If the keypad has been fitted with a proximity device receiver (see page ), users should present the Portable ACE Fob to
within 1 cm of this area to SET/UNSET the system.
8
Multi-functional navigation Key
The multi-functional navigation key in combination with the keypad display provides an interface for programming the
system.
LED
Status
AC mains
(Green)
Indicates the presence or failure of the mains supply
FLASHING: AC mains fault detected
STEADY: AC mains OK
System alert
(Yellow)
Indicates a system alert
FLASHING: System alert detected; display indicates the location and nature of alert. If the system is SET, then NO
indication is given of system alerts
OFF: No alert detected; If a keypad is assigned to more than one area, LED does not indicate an alert condition if any of
those areas is SET
X-BUS Status
(Red)
Indicates the status of the X-BUS communications when in FULL ENGINEER programming
Flashes regularly: (once every 1.5 seconds approx) indicates communications status is OK
Flashes quickly: (once every 0.25 seconds approx) indicates the keypad is the last expander on the X-BUS
If the keypad is being installed for the first time and power is supplied to it before a connection to the controller X-BUS
interface is made, the LED remains in the ON state
© Siemens Industry - 11-24-2009