Power Supplies and Shunts
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Which is better, Linear or Switcher Supplies? Because servo motors are inductive, they may run highly dynamic motion profiles. As a result, their current demand can vary widely. Surge currents from stand-still to maximum load may be extremely high, yet steady state current demand over time may be relatively mild. As a result, proper care should be taken when selecting power supplies. Moog Animatics offers two basic types of power supplies. The chart to the right gives a brief comparison of the two types of supplies. 1 See shunt section for more information! As seen in the graph to the right, linear (unregulated) supplies can handle large surge current loads. This is because linear supplies typically contain large output capacitors to handle those surges well. Voltage regulation: switchers are highly regulated supplies. They will maintain fixed voltage until they reach maximum load and then will “crowbar” to zero volts to protect the output stages. Linear supplies will slowly drop in output voltage while supplying more and more current. This is the most fundamental difference between switchers and unregulated supplies. Even though a switcher cannot handle the higher current surges, if it can output as much current as you would expect for a given servo application, then they will actually help the servo accelerate much faster because system voltage will be maintained at maximum level. However, if your servo application requires surge currents in excess of 50 Amps or more, the switchers may not be cost effective. Getting 50 amps from a Moog Animatics 20 Amp supply is easy. Getting 50 Amps from Moog Animatics switchers would require placing multiple units in parallel, so it may not be cost effective to do so. WARNING: Improper Power Supply Sizing may result in Motor Position Error Faults, Motor Resets, and Machine Faults MOOG ^►Animatics Moog Animatics • www.animatics.com • Tel West +1 650-960-4215 • Tel East +1 610-328-4000 x315 175 OVERVIEW I SOFTWARE I D-STYLE MOTORS I D-STYLE CONNECTIVITY I PERIPHERALS I M-STYLE MOTORS I M-STYLE CONNECTIVITY I LINEAR SYSTEMS I POWER SUPPLIES & SHUNTS I GEAR HEADS I APPENDIX

APPENDIX I GEAR HEADS I POWER SUPPLIES & SHUNTS I LINEAR SYSTEMS I M-STYLE CONNECTIVITY I M-STYLE MOTORS I PERIPHERALS I D-STYLE CONNECTIVITY I D-STYLE MOTORS I SOFTWARE I OVERVIEW Power Supplies: • Linear Unregulated • AC Input, DC output • Screw Terminal Access • Toroid Transformer for lower EMI Part Number 176 WARNING: Improper Power Supply Sizing may result in Motor Position Error Faults, Motor Resets, and Machine Faults Moog Animatics • www.animatics.com • Tel West +1 650-960-4215 • Tel East +1 610-328-4000 x315 E MOOG ^►AnimaticS

MOOG ^S-AnimaticS Enclosed Switch Mode DC Power Supply PFC500W-48 Features Universal AC input / Full range Built-in active PFC function, PF>0.95 Protections: Short circuit / Overload / Overvoltage / Overtemperature Forced air cooling by built-in DC fan with ON/OFF control Built-in remote ON/OFF control Built-in remote sense function WARNING: Improper Power Supply Sizing may result in Motor Position Error Faults, Motor Resets, and Machine Faults Moog Animatics • www.animatics.com • Tel West +1 650-960-4215 • Tel East +1 610-328-4000 x315 OVERVIEW I SOFTWARE I D-STYLE MOTORS I D-STYLE...

APPENDIX I GEAR HEADS I POWER SUPPLIES & SHUNTS I LINEAR SYSTEMS I M-STYLE CONNECTIVITY I M-STYLE MOTORS I PERIPHERALS I D-STYLE CONNECTIVITY I D-STYLE MOTORS I SOFTWARE I OVERVIEW Output Derating vs. Input Voltage ^ WARNING ) The switcher supplies have an adjustable output trim pot. The output voltage MUST BE adjusted to <=48VDC. INPUT VOLTAGE (V)60Hz WARNING: Improper Power Supply Sizing may result in Motor Position Error Faults, Motor Resets, and Machine Faults Moog Animatics • www.animatics.com • Tel West +1 650-960-4215 • Tel East +1 610-328-4000 x315 (yiooG ^►AnimaticS

PFC1500W-48 Features: Universal AC input / Full range AC input active surge current limiting Built-in active PFC function, PF>0.95 Protections: Short circuit / Overload / Overvoltage / Overtemperature Forced air cooling by built-in DC fan with ON/OFF control Built-in remote ON/OFF control Built-in remote sense function NOTE: Multiple units may be paralleled for additional power WARNING: Improper Power Supply Sizing may result in Motor Position Error Faults, Motor Resets, and Machine Faults ryiooG ^S-AnimaticS Moog Animatics • www.animatics.com • Tel West +1 650-960-4215 • Tel East +1...

APPENDIX I GEAR HEADS I POWER SUPPLIES & SHUNTS I LINEAR SYSTEMS I M-STYLE CONNECTIVITY I M-STYLE MOTORS I PERIPHERALS I D-STYLE CONNECTIVITY I D-STYLE MOTORS I SOFTWARE I OVERVIEW Airflow direction AC Input Terminal Pin No. Assignment Control Pin No. Assignment(CN1,CN2): HRS DF11-8DP-2DS or equivalent POKGND: PowerOKGround AUXG: Auxiliary Ground P OK: Power OK Signal RC1: Remote ON/OFF RCG: Remote ON/OFF Ground AUX: Auxiliary Output ! warning) inputvoltageM60HzThe switcher supplies have an adjustable output trim pot. The output voltage MUST BE adjusted to <=48VDC. Moog Animatics •...

• Enclosed linear unregulated power supplies • PC-type AC power cord • 4 pin AMP connector on output • Internally fused on both primary and secondary side • Toroid transformer for minimal voltage drop and minimal EMI Includes AC Power Cord and KITDC1 connector kit Part Number PWR116V Enclosed Laptop Type Power Supply This Power Supply connects directly to: • CBLSM1-DEMO • SmartBox™ • SmartBox BCD™ It is ideal for desktop testing of the SmartMotor™ and will easily run an unloaded SmartMotor for programming and evaluation testing. Input: 100-240VAC 50/60Hz Connector Type: 2.1x5mm coax...

APPENDIX I GEAR HEADS I POWER SUPPLIES & SHUNTS I LINEAR SYSTEMS I M-STYLE CONNECTIVITY I M-STYLE MOTORS I PERIPHERALS I D-STYLE CONNECTIVITY I D-STYLE MOTORS I SOFTWARE I OVERVIEW Moog Animatics offers several shunt options for use with DC input servo motors. Shunts are needed to protect the servo controller and drive stages from over voltage. Over voltage sources originate from the following: • Back EMF due to back driving the motors • Sudden or hard decelerations • Hard stop crashes (immediate deceleration to zero speed) • Vertical load drops The shunts actually add an additional load to...