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Motor Saver SymCom 77C, Installation Instruction

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Motor Saver SymCom 77C Installation Instruction Download Page 12

-12-

10/05

2880 North Plaza Drive, Rapid City, SD  57702

(800) 843-8848

·

(605) 348-5580

www.symcom.com

Visit us at

www.symcom.com

 to see

our complete product listing!

Can t find what

         you re looking for?

   SymCom designs and manufactures

     custom control boards too.

 Call us for details!

Summary of Contents for SymCom 77C

Page 1: ...ded for wire looping see Figure 1 3 For motors with full load current above 90 A an external current transformer CT must be used see Figure 2 SymCom recommends using CTs with terminals for installation convenience When using an external CT five passes must be made through the holes in the Model 77C 4 Connect the single phase power from the line side of the contactor to L1 and L2 First insert a 12 ...

Page 2: ...splay 4 Release the RESET PROGRAM button The Model 77C is programmed when the button is released NOTE If a setting jumps back to its original number when the button is released the tamper guard is set Refer to the TAMPER GUARD section page 11 to unlock the setpoints 5 Repeat steps 1 4 until all features are programmed Recommended Full Load Amps OC Range Amps UC Range Amps of Passes through each Wi...

Page 3: ... 3 10 05 Figure 1 Typical Wiring Diagram Figure 2 External CT wiring diagram ...

Page 4: ... full load amperage FLA UC The UC undercurrent setting is typically set to 80 of full load amperage FLA The overload relay with a UC setting of 80 of FLA will typically detect a loss of load for many pumps and motors such as a dry well condition for submersible pumps The UC setting may be set to 0 00 to disable undercurrent loss of load protection TC TC designates the trip class for overload prote...

Page 5: ...d if RS 485 communication is not used UCTD UCTD is the undercurrent trip delay timer This setting represents the maximum time the Model 77C will tolerate an undercurrent condition Typically UCTD is set to 2 4 seconds OPT1 OPT1 is the linear overcurrent trip delay 2 60 seconds This programming position is used only if the TC position is set to LIn This setting will determine the period of time that...

Page 6: ...t most NEMA rated general purpose motors 30 Slow Trip Motors with long acceleration times 10 seconds or high inertia loads J Prefix Programming any of the trip classes with the J Prefix will enable jam protection This additional protection is enabled 1 minute after the motor starts and provides a 2 second trip time for motors exceeding 400 OC regardless of trip class LIn Programming the trip class...

Page 7: ... N A see RO setting RD3 N A see RU setting RU Setting RU to 0 will require a manual reset after an undercurrent trip Therefore RD3 has no affect in this application This setting will allow the auger to be started and left unattended and will run until the delivery pit is empty Pressing a remote reset button will start the auger for the next load RO Setting RO to 0 will require a manual reset after...

Page 8: ...Display is showing a solid uc The unit has tripped on undercurrent and a manual reset is required because of the programmed setting in RU Check the system for problems that would produce an underload condition like a broken belt or shear pin Unable to change parameter setpoint bounces back to previous setting Unlock tamper guard See page 11 Motor starts and stops a short time later but there is no...

Page 9: ...nity RFI Radiated IEC 1000 4 2 Level 3 6kV contact 8kV air IEC 1000 4 6 Level 3 10V m IEC 1000 4 3 Level 3 10V m Fast Transient Burst IEC 1000 4 4 Level 3 3 5 kV input power Surge IEC 1000 4 5 Level 3 2kV line to line Level 4 4kV line to ground ANSI IEEE C62 41 Surge and Ring Wave Compliance to a level of 6kV line to line Hi potential Test Meets UL508 2 x rated V 1000V for 1 minute Vibration IEC 6...

Page 10: ... Restart Delay After Undercurrent dry well recovery timer 2 500 Minutes seconds RU Number of Restarts After Undercurrent 0 1 2 3 4 A Automatic ADDR RS485 Address A01 A99 RO Number of Restarts After Overcurrent 0 1 2 3 4 A Automatic UCTD Undercurrent Trip Delay 2 60 Seconds NOTES SymCom s Overload Relay can be preprogrammed prior to installation by applying 120VAC between the L1 and L2 terminals If...

Page 11: ...ODE SELECT to RUN The program is now locked but all settings can be viewed The unit can be unlocked by following the procedure above except step three adjust DISPLAY PROGRAM until unL appears NOTES 1 If a setting jumps back to its previous setpoint when changed the tamper guard is locked 2 The state of the tamper guard cannot be viewed directly SymCom Warrants its microcontroller based products ag...

Page 12: ...apid City SD 57702 800 843 8848 605 348 5580 www symcom com Visit us at www symcom com to see our complete product listing Can t find what you re looking for SymCom designs and manufactures custom control boards too Call us for details ...

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