Owner`s manual

PROGRAMMABLE WALL STATION
Owner’s manual 15
4.2 CAN-Status-LED
The entries in following table are arranged after falling priority, i.e. if two conditions arise at the same time,
only the upper condition in the table is indicated.
4.3 Connection
The PWS-C has a 10-pole terminal clip for the connection of CAN-Bus
signal transmission and power supply. Using cable with diameters
between 0.5 mm and 0.8 mm (20 -24 AWG) is possible. For further
information, please refer to the chapter “cable specifications” on page 20.
CAN-Status-LED Description
Off No power supply
Continuously lit Firmware Update / Configuration in progress
Continuously lit for 3 seconds Changes applied to the DIP-switch setting are adopted
Blinks fast (50 ms ON, 50 ms OFF) Find function active
Activation for 100 ms Sending data
Blinks every second twice for 100
ms
Error state (Hardware fault, wrong configuration, no connection
to a CAN unit, missing/wrong panel)
Blinks rhythmically every 3 seconds
for 100 ms
The PWS-C is separated from the CAN-Bus via software (CAN
address 00)
Blinks rhythmically every second for
100 ms
Normal operation, no data transfer
Table 4.4: CAN-Status-LED - modes of indication
Connection Description
Cable shield
GND Operating voltage (-) / CAN_GND
VCC Operating voltage (+)
CAN L CAN_L
CAN H CAN_H
NOTE:
Power supply ground and CAN-Bus ground are not galvanically separated. The
potential difference on the GND-line may not exceed 5 volts.