Page 3–40 Stellar
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SR55 Series Soft Starter User Manual – 1st Ed, Rev F – 09/18/2019
Chapter 3: Configuration and Parameters
parameTer deTails – “advanCed” menu of parameTers (ConTinued)
P8.17 – Motor Side Phase Loss Hold. Reg. Type:
Description:
Read/Write
Detects if there is a disconnection between the SR55 output and the motor.
Range: Modbus Decimal Value: Default (decimal):
• Off : The SR55 will attempt to start and run although the
operation may be erratic. Operating in this mode for
prolonged periods may result in SCR failure.
• On : Trips if there is a disconnection between the output side of
the SR55 and the motor.
• 0
• 1 • On (1)
Modbus Address: Modbus Format:
53777 ( D211 hex ) 16-bit unsigned
Touchscreen Menu Path:
Home → Advanced → Trip Settings → Motor Side Phase Loss
P8.18 – Sensing Fault Trip Hold. Reg. Type:
Description:
Read/Write
Detects if there is a fault with operation of one or more of the internal thyristors.
Range: Modbus Decimal Value: Default (decimal):
• Off : The SR55 will attempt to start and run although the
operation may be erratic. Operating in this mode for
prolonged periods may result in SCR failure.
• On : Trips if one or more of the Thyristors fails to turn on properly.
• 0
• 1 • On (1)
Modbus Address: Modbus Format:
53781 ( D215 hex ) 16-bit unsigned
Touchscreen Menu Path:
Home → Advanced → Trip Settings → Sensing Fault Trip
P8.19 – Thermal Sensor Trip Hold. Reg. Type:
Description:
Read/Write
Detects if the internal temperature sensors have failed.
Range: Modbus Decimal Value: Default (decimal):
• Off : The SR55 will continue to operate even if the temperature
sensor has failed. Operating in this mode for prolonged
periods may result in SCR failure.
• On : The SR55 will trip if the internal temperature sensors fail.
• 0
• 1 • On (1)
Modbus Address: Modbus Format:
53768 ( D208 hex ) 16-bit unsigned
Touchscreen Menu Path:
Home → Advanced → Trip Settings → Thermal Sensor Trip
P8.20 – External Trip Enable Hold. Reg. Type:
Description:
Read/Write
Turning this parameter on will allow an External Trip Command to trip the SR55. A trip can
be forced using one of the digital inputs or using a Modbus command. The “Control Method”
parameter must be set to “User Programmable” when using a digital input or “Modbus Network”
when using Modbus in order to configure the SR55 for an external trip.
Range: Modbus Decimal Value: Default (decimal):
• Off : External Trip is disabled.
• On : Trips when the programmed input is active.
• 0
• 1 • On (1)
Modbus Address: Modbus Format:
53795 ( D223 hex ) 16-bit unsigned
Touchscreen Menu Path:
Home → Advanced → Trip Settings → External Trip