7
Carlo Gavazzi LTD
RSWT
RSWT DS ENG
17/05/2018
Mode of operation
The RSWT…V10/ V110/ V111 soft starter series features 3-knob settings and an additional push button to test the overload
protection, reset the alarms and for setting the alarm recovery to Manual or Auto.
Step 1: Set the ramp-up time
• Set the knob to the desired starting time as required for the specific application.
Step 2: Set the ramp-down time
• Set the knob to the desired stopping time as required for the specific application. In this case ramp-down time can be set
to a different value from that of the ramp-up time.
• Note: If no soft-stop is required, set the ramp-down knob from 0 to 1sec.
Step 3: Set the full load current (FLC)*
• Adjust the knob setting to the FLC value corresponding to the pump/motor name plate to ensure proper overload protection
* Note: Refer to section “Selection Guide and typical application settings” section on page 3 in case of Trip Class 20 loads.
Step 4: Set the alarm recovery mode
• Make sure the RSWT is in idle mode (Green LED ON)
• To set the alarm recovery to auto, press the Test/Reset button for a minimum of 5secs. The MANUAL LED (yellow LED)
will turn OFF indicating that the alarms will follow an auto-recovery routine.
• To set the alarm recovery to MANUAL the same procedure as described above applies
• Note: The RSWT…V10/ V110/ V111 have a default setting of auto alarm recovery (yellow LED MANUAL OFF)
Step 5: Test the overload function
• To make sure that the overload function is working properly press the TEST/RESET button (during Idle) for about 1sec.
The RSWT will trip and the red LED will flash 8 times indicating an overload alarm. The alarm relay (11,12) will also
change state to Open.
Note: for RSWT32 to RSWT90 models, relay (11, 12, 14) will change state.
IMPORTANT: The RSWT knob settings are only checked during IDLE status. Changes in the knob settings dur-
ing Ramping/Bypass status will only be affected during the following start/ stop.
Setting procedure
