Automation Direct Stellar SR55 Series - Page 56

Page 3–26 Stellar
®
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)
P3.1 – Start Pedestal Hold. Reg. Type:
Description: Read/Write
• Percentage of the supply voltage applied to motor at the beginning of the soft start.
• Increase to provide more torque If the load fails to break away.
• Decrease if the motor accelerates too quickly.
Range: Modbus Decimal Value: Default:
10% – 100% linear scale ( 1 = 0.006104 % )
10% – 100% = (1638 – 16384)
x% / 0.006104% = Modbus dec. value
EX: Modbus value of 2900 = 17.7016%
20%
Modbus Address: Modbus Format:
704 ( 2C0 hex ) 16-bit unsigned
Touchscreen Menu Path:
Home → Advanced → Start Settings → Start Pedestal
P3.2 – Start Current Limit Trip Hold. Reg. Type:
Description: Read/Write
Selects between trip or continue if the current limit has been active for too long.
Range: Modbus Decimal Value: Default (decimal):
• Off : The start will continue regardless of the motor current
level.
• On : The SR55 will trip. This trip is constrained by the Start
Current Limit Level and the Start Current Limit Time.
• 0
• 1 • On (1)
Modbus Address: Modbus Format:
53790 ( D21E hex ) 16-bit unsigned
Touchscreen Menu Path:
Home → Advanced → Start Settings → Start Current Limit Trip
(also Home → Advanced → Trip Settings → Start Current Limit Trip)
P3.3 – Start Current Limit Level Holding Register Type:
Description: Read/Write
The current in Amps which the soft start ramp is not allowed to go above.
• Normally set to 350% of motor FLA.
• Increase if motor fails to accelerate at required rate.
• The “Current Limit Level” will effect actual time to start. If set too low the motor may not
accelerate to full speed.
Range: Modbus Decimal Value: Default:
100% motor FLA – 450% SR55 rated A Linear Scale ( 1 = 1mA ) 350% motor FLA
Modbus Address: Modbus Format:
26880 ( 6900 hex ) 16-bit unsigned
Touchscreen Menu Path:
Home → Advanced → Start Settings → Start Current Limit → Start Current Limit Level
P3.4 – Start Current Limit Time Holding Register Type:
Description: Read/Write
The maximum time allowed for the current limit.
• If the current limit is still active at the end of this period the SR55 will either ‘trip’ or ‘continue.’
Range: Modbus Decimal Value: Default:
• 1s – 300s Linear Scale ( 1 = 1s ) 30s
Modbus Address: Modbus Format:
26944 ( 6940 hex ) 16-bit unsigned
Touchscreen Menu Path:
Home → Advanced → Start Settings → Start Current Limit → Start Current Limit Time