SSD Series – Riedon™ Digital Current Sensor with RS485/MODBUS Interface by Bourns

SSD Interface Manual (continued)

GF / SF GET / SET CURRENT UNDER LIMIT

Used to configure the optional lower limit for current readings. Currents below this value will cause an error that can be read with the

GET ERRORS command if errors aren’t automatically sent. A zero value disables this alert, non-zero values enable alert.

Value is an signed Int16. Default CURRENT UNDER LIMIT: 0 (Disabled).

Example: Set the lower limit to 25 amps

WRITE

READ

Send:

:1SF25<cr>

Send:

:1G0<cr>

Receive: (none)

Receive: 25<cr>

GG / SG GET / SET CURRENT OVER LIMIT

Used to configure the optional upper limit for current readings. Currents above this value will cause an error that can be read with the

GET ERRORS command if errors aren’t automatically sent. A zero value disables this alert, non-zero values enable alert.

Value is an signed Int16. Default CURRENT OVER LIMIT: 0 (Disabled).

Example: Set the lower limit to 620 amps

WRITE

READ

Send:

:1SG620<cr>

Send:

:1G1<cr>

Receive: (none)

Receive: 620<cr>

GI / SI GET / SET TEMPERATURE OVER LIMIT

Used to configure the temperature limit for the error. Temperatures above this value will cause an error that can be read with the GET

ERRORS command if errors aren’t automatically sent.

Value is an unsigned Int16 in centigrade. Default TEMP OVER LIMIT: 125 °C (Cannot Disable)

Valid Range: 0 °C to +125 °C (MAX)

Example: Set the upper limit to 90 °C

WRITE

READ

Send:

:1SI90<cr>

Send:

:1G2<cr>

Receive: (none)

Receive: 90<cr>

GL / SL GET / SET VBUS UNDER LIMIT

Used to configure the optional lower limit for the bus voltage readings. Voltages below this value will cause an error that can be read

with the GET ERRORS command if errors aren’t automatically sent. A zero value disables this alert, non-zero values enable alert.

Value is a signed Int16 in volts. Default VBUS UNDER LIMIT: 0 (Disabled).

Example: Set the lower limit to 29 Volts

WRITE

READ

Send:

:1SL29cr>

Send:

:1G3<cr>

Receive: (none)

Receive: 29<cr>

NOTE: No settings are saved until a save settings to EEPROM command is issued!

Power cycling will restore previous settings. See RESET command :1RS0F<cr>

Specifications are subject to change without notice.

Users should verify actual device performance in their specific applications.

The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.