
26
P09.n.11, P09.n.12 - P09.n.11 These define the maximum imbalance threshold between the phases referred to rated
voltage and P09.n.12 is the respective tripping delay. This control may be disabled by setting P09.n.11 to OFF.
P09.n.13 - Maximum frequency tripping threshold; may be deactivated.
P09.n.14 - Maximum frequency tripping delay.
P09.n.15 - Minimum frequency tripping threshold; may be deactivated.
P09.n.16 - Minimum frequency tripping delay.
P09.n.17 - OFF = voltage control S.n in OFF mode is deactivated. ON = voltage control in OFF mode is active. OFF+GLOB
= voltage control in OFF mode is deactivated but the relay programmed with the global alarm function may
intervene or not according to whether the mains are absent or present, respectively. ON+GLOB = voltage
control in OFF mode is activated but the relay programmed with the global alarm function may intervene or not
according to whether the mains are absent or present, respectively.
P09.n.18 - See P09.n.17 but referred to MANUAL mode.
P09.n.19, P09.n.20 - Conditional enable of the source line. OFF = The source line is normally available. (Any other
setting) = The source line can be used only if the set variable is active.
M10 - COMMUNICATION
COMn (n=1…3)
UNIT
DEFAULT
RANGE
P10.n.01
➊
Serial node address
01
01-255
P10.n.02
➊
Serial speed
bps
19200
1200
2400
4800
9600
19200
38400
57600
115200
P10.n.03
➊
Data format
8 bit - n
8 bit, no parity
8 bit, odd
bit, even
7 bit, odd
7 bit, even
P10.n.04
➊
Stop bit
1
1-2
P10.n.05
➊
Protocol
Modbus RTU
Modbus RTU
Modbus ASCII
Modbus TCP
➊
These parameters are also accessible with user level password.
Note: This menu is divided into 3 sections for communication channels COM1..3.
The channel COM1 identifies the standard RS-485 port, while COM2 and COM3 are reserved to the possible
communication ports on expansion modules EXP. The infrared frontal programming port has fixed communication
parameters and no setting menu is reuired.
P10.n.01 - Serial address (node) of the communication protocol.
P10.n.02 - Communication port transmission speed (1200 bps not available on slot 1 and 4).
P10.n.03 - Data format. 7-bit settings available for ASCII protocol only.
P10.n.04 - Stop bit number.
P10.n.05 - Communication protocol selection.
P10.n.06, P10.n.07, P10.n.08 - TCP-IP coordinates for applications with Ethernet interface. Not used with other commu-
nication module types.
P10.n.09 - Port operating mode. Slave = normal operation, the device reply to the messages of an external master.
Gateway = The device analyses the message intended to it (serial address) and forwards those address to
other nodes through the RS485 interface.
2. Operating modes