YASKAWA CP 341 Manual page 22

Hardware description
Structure
Wiring receiver
Power supply
LEDs
22
At the CP interface the wiring of the receiver is realized as follows:
Parameter
None
(default value: not activated)
Parameter
Signal R(B) 0Volt
Signal R(A) 5Volt
(Break evaluation)
Parameter
Signal R(B) 5Volt
Signal R(A) 0Volt
(default value: not activated)
The CP 341-1CH01 gets its power supply via the back plane bus.
Ä Chap. 4.3 'Technical data' page 23
The CP 341-1CH01 carries a number of LEDs that are available for diagnostic purposes
on the bus and for displaying the local status. Dependent on the mode of operation these
give information according to the following pattern over the operating condition of the CP:
Name Color
PWR green
SF red
TxD green
RxD green
Firmware update
– At the corresponding CP the LEDs SF, TxD and RxD are on during
firmware update.
– The firmware update is ready when TxD and RxD get off.
Description
No pre-assignment of the receiving lines.
This setting only makes sense with bus-capable spe-
cial drivers.
Description
With this pre-assignment break detection is possible at
full-duplex operation (RS422).
Description
This pre-assignment corresponds to the idle state (no
sender is activated) at half-duplex operation at RS485.
Here wire-break recognition is not possible.
Description
Indicates that power is available
Group alarm or re-parameterization in progress
n Group alarm lights up at:
– Hardware fault
– Firmware error
– Parameterization error
– BREAK (receive cable between CP and commu-
nication partner becomes disconnected)
n Transmit data flashes when the CP is sending user
data via the interface
n Receive data flashes when the CP is receiving user
data via the interface
HB130 | CP | 341-1CH01 | en | 18-40
VIPA System 300S