AC Tech SCF SERIES User Manual

Name: AC Tech SCF SERIES
Brand: AC Tech
Rating: 5 (1 reviews)

67 pages

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Installation and Operation Manual

SCF Series

Table of Contents2
Product View3
General4
SCF Dimensions5
SCF Through-Hole Mount Dimensions7
SCF Model Designation Code9
SCF Ratings10
SCF Specifications10
Installation13
- Installation after a Long Period of Storage13
- Explosion Proof Applications14
Input AC Power Requirements14
- Input Fusing and Disconnect Requirements15
- Input Voltage Ratings15
Power Wiring16
Wiring for Single Phase or Three Phase Input16
SCF Power Wiring Diagram17
Control Wiring18
- Speed Reference Signals18
- Surge Suppression on Relays18
- TB-2: Circuit Common18
- Motor Operated POT (Mop)/Floating Point Control19
- Preset Speeds19
- Speed Reference Selection19
- Analog Output Signals20
- Drive Status Digital Outputs20
SCF Control Wiring Diagrams21
- SCF Terminal Strip21
- Two-Wire Start/Stop Control22
- Alternate Two-Wire Start/Stop Control23
- Three-Wire Start/Stop Control24
- Speed POT and Preset Speed Control25
Initial Power up and Motor Rotation26
To Check the Motor Rotation27
Programming the SCF Drive28
- Setting Values in Tenths of Units above 10030
- Electronic Programming Module (EPM)31
Parameter Menu32
Carrier Frequency35
Description of Parameters35
- Line Voltage Selection35
- Start Method36
- Standard Speed Source37
- Stop Method37
- TB-14 Open Collector Output37
- TB-30 Analog Output38
- TB-31 Analog Output38
- TB-13A Function Select39
- TB-13B Function Select39
- TB-13C Function Select40
- Control41
- Serial Link41
- TB-15 Open Collector Output41
- Acceleration Time, Deceleration Time42
- DC Brake Time42
- Rotation Direction42
- Units Editing42
- Current Limit43
- DC Brake Voltage43
- Maximum Frequency43
- Minimum Frequency43
- Base Frequency44
- Fixed Boost44
- Motor Overload44
- Acceleration Boost45
- Preset Speed #1 - #745
- Skip Bandwidth45
- Slip Compensation45
- Frequency Scaling46
- Load Scaling46
- Speed Scaling46
- Accel/Decel #247
- Clear Fault History, Program Selection47
- Password47
- Serial Address47
- DC Bus Voltage48
- Fault History48
- Motor Voltage48
- Software Version48
- 0-10 VDC Analog Input49
- Keypad and Protection Status49
- Motor Load49
- Terminal Strip Status49
Troubleshooting50
- Fault Messages Table51
- Changing the Speed Reference Source52
- SCD Display Messages52
- Speed Display52
- Speed Source Displays Table53
- Status and Warning Messages Table53
- Appendix A - Through-Hole Mount Option54
- Appendix B - Pi Setpoint Control Option58

Other manuals for AC Tech SCF SERIES

Quick Reference Guide2 pages

Instructions2 pages

Questions and Answers:

J
Jennifer EverettAug 2, 2025
What to do if AC Tech Keypad displays 'JF'?
- S
  Stephen WrightAug 2, 2025
  If your AC Tech Keypad or SCF drive displays 'JF', it usually indicates a communication problem. Check the wiring between the remote keypad and the drive. Also, if attempting to start the drive from the Remote Keypad, ensure TB-1 is closed to TB-2. Furthermore, avoid attempting to power the Remote Keypad and an auxiliary relay from TB-11.

AC Tech SCF SERIES Specifications

General

Series	SCF Series
Frequency	50/60 Hz
Enclosure	NEMA 1
Dimensions	Varies by model
Weight	Varies by model
Type	Variable Frequency Drive
Input Voltage	115/230 VAC
Output Voltage	0-Input Voltage
Power Range	Up to 3 HP
Control Method	V/Hz
Ambient Temperature	0 to 40°C

AC Tech SCF SERIES User Manual

Table of Contents

Other manuals for AC Tech SCF SERIES

Questions and Answers:

AC Tech SCF SERIES Specifications