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Home Technologies Electromechanical Group Electromechanical - Industrial Electromechanical Industrial Knowledge Base Replacing S106 or TS41 TS42 TS43 step motors with Servo Motors
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Electromechanical Industrial Knowledge Base Replacing S106 or TS41 TS42 TS43 step motors with Servo Motors
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Replacing S106 or TS41 TS42 TS43 step motors with Servo Motors

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Note that these are 42-frame step motors which are not very common as they require high current stepper drives which are also not common. Many of these have been successfully upgraded to servo motors & drives.  Servo motors are more accurate (they do not stall and have encoders built-in for true closed loop accuracy), can run at higher speeds (5000rpm vs 3000rpm max), run more efficiently (drawing power-on-demand vs steppers running 100% current) and thus run cooler (servo motor case temperature lower than step motors) and quieter (step motors are noisy above 15-20rps).  Servo motors have feedback with closed-loop operation; as position error increases, the servo system increases the current and torque to the motor to close that error. As an error driven system, it’s more energy and also more thermally efficient.  Servo systems are more common for higher power systems and more cost-effective offering a number of newer options than stepper drives (Ethernet tcp/ip communications, Ethernet/IP and other field bus options, USB and Modbus communications) and can be used with Xpress HMIs.

As step motors have very high torque at 0 speed, and 42dimensions, the PV42 gearhead could be used with a servo motor, allowing for high startup torque and additional mechanical advantage of a gearbox.

Stepper applications were traditionally sized for a 50% torque margin where servo motors sized for a 20% torque margin. The Zeta and Gemini Steppers with their advanced smoothing features allowed running closer to the edge of the speed torque curves but many times were used as an upgrade from older stepper drives (S series, A series, etc) that didn't have the performance of the Zeta/Gemini. Checking the motor sizing can confirm the right size motor is being used.

The P-series servo motors have high-resolution absolute encoders built-in that increase stability and make the system easy to tune.

The P-series drive has next generation auto-tuning and most systems out of the box with the default tuning gains don’t even need adjustment, but if it is, it’s single button auto-tuning in the DST software. They can be run into step & direction signal identical to S drives (S6 or S8 drives) or ZETA drives (ZETA8 or ZETA12 or ZETA4-240) requiring no program changes at the PLC or motion controller.

The IPA is a fully programmable servo drive controller. It could be used to replace older SX (SX6 or SX8) or ZETA6000 (ZETA6112, ZETA6108 or ZETA6104-240). 

Our local Parker ATCs have automation engineers on staff that can review the loads & speeds and re-size the motor. We'd recommend contacting your local Parker Automation Technology Center (ATC) that can review the application requirements to determine if a servo system is appropriate as replacement and a motor/drive/gearhead (if needed) combination.

Related FAQ: S/SX Motors - Replacing S/ZETA/ES series step motors with BE servo motors

TS42 replacement: PM-FCL10 + PV42

PM-FCL10AMK    80mm 1000watt servo motor, no brake
PV42FE-005        Inline 42frame gearhead, 5:1
MV115-004          Mounting kit for PM-FCL10 motor to PV42 gearhead
IPA15-HC            Intelligent Parker Amplifier
APCS-PNxxLS    Motor cable, xx is length in meters (03, 05, 10, 20)
71-032647-xx       Encoder cable, xx is length in meters (03, 05, 10, 20) (no battery)

Optional:
VM25-MC-02       25-pin breakout board for Drive I/O, includes 2-foot cable
71-032751-xx      Encoder cable with battery for Multi-turn absolute encoder (replace 71-032647 cable above, no change on motor)

At 120vac, speed-torque comparison:

S106-178 Replacement (Step & Direction drive)

If the machine has 208 - 240vac available:
PM-FCL06AMK      600watt servo motor, absolute encoder
PV42FE-003          Inline planetary gearhead, 42face, 3:1
MV115-004            Mounting kit for PM-FCL06 to PV42
PD-10P                  P-series drive, (240vac) simple indexer


If there's only 110-120vac available:
PM-FCL04AMK     400watt servo motor, absolute encoder
PV42FE-003          Inline planetary gearhead, 42face, 3:1
MV115-198            Mounting kit for PM-FCL04 to PV42
PD-04P                  P-series drive, (120/240) simple indexer

S106-178 Replacement (Drive Controller)

PM-FCL06AMK     600watt servo motor, absolute encoder
PV42FE-003         Inline planetary gearhead, 42face, 3:1
MV115-004           Mounting kit for PM-FCL06 to PV42
IPA15-HC             1500watt IPA programmable servo drive/controller with Ethernet (120 or 240vac)

S106-205 Replacement (Step & Direction drive)

If the machine has 208 - 240vac available:
PM-FCL10AMK      600watt servo motor, absolute encoder
PV42FE-005          Inline planetary gearhead, 42face, 3:1
MV115-004            Mounting kit for PM-FCL06 to PV42
PD-10P                  P-series drive, (240vac) simple indexer

S106-205 Replacement (Drive Controller)

PM-FCL10AMK      600watt servo motor, absolute encoder
PV42FE-005          Inline planetary gearhead, 42face, 3:1
MV115-004            Mounting kit for PM-FCL06 to PV42
IPA15-HC              1500watt IPA programmable servo drive/controller with Ethernet (120 or 240vac)

For full specifications for PV series gearhead, P series motors, P series drives or IPA drive controllers, see product page at www.parkermotion.com or www.parker.com/emn/

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