New Industrial l Servo Motor YASKAWA 0.519N-m AC SERVO MOTOR 50W SGMJV-A5A3A-SU11



Quick Details
Brand Name:Julante
Model Number:YE2
Type: Servo Motor
Frequency: 50/60Hz
Output Power: 200W
Protect Feature:Totally Enclosed
Phase:Three-phase
Certification:CCC, CE, ROHS, UL, VDE, Other
AC Voltage:208-230 / 240 V
Place of Origin:Japan
Efficiency:IE 1




OTHER SUPERIOR PRODUCTS

1. Grade: SUS201,SUS304,SUS316,A2-70,A2-80,A4-80,4.8 6.8 8.8 10.9 12.9
2. Size: M3-48
3. Standard: DIN 315
4. Certification: ISO9001, SGS, CTI, ROHS

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WHAT ARE EC DIRECTIVES?
The EC Directives were issued to standardize the regulations of the EU countries and ensure smooth distribution of safety-guaranteed products. In the EU countries, the Machinery Directive (effective in January, 1995), EMC Directive (effective in January, 1996) and Low Voltage Directive (effective in January, 1997) of the EC Directives require that products to be sold should meet their fundamental safety
requirements and carry the CE marks (CE marking). CE marking applies to machines and equipment into which servo amplifiers have been installed.
(1) EMC Directive
The EMC Directive applies to a machine/equipment which incorporates the servo, not to the servo alone. Hence, the EMC filter must be used to make this machine/equipment which incorporates the servo comply with the EMC Directive. For specific methods to comply with the EMC Directive, refer to the "EMC Installation Guidelines" (IB(NA)67310).
(2) Low Voltage Directive
The Low Voltage Directive applies also to the servo alone. Therefore, our servo is designed to comply with the Low Voltage Directive.
This servo has been approved by TUV, third-party evaluation organization, which confirmed that it complies with the Low Voltage Directive.
(3) Machinery Directive
Since the servo amplifiers are not machines, they need not comply with this directive.



A special type of overcurrent protection device used commonly in motor control circuits is the overload heater. These devices are connected in series with the motor conductors, and heat up slightly under normal current conditions:



Although the ”heater” elements are connected in series with the motor lines as fuses would be, they are not fuses! In other words, it is not the purpose of an overload heater to burn open under an overcurrent fault condition, although it is possible for them to do so.
The key to understanding the purpose of an overload heater is found by examining the single-phase (L1 / L2) control circuit, where a normally-closed switch contact by the same name (”OL”) is connected in series with the motor relay coil.
How, exactly, do overload heaters protect an electric motor against ”burnout” from overcurrent conditions? How does this purpose differ from that of fuses or circuit breakers? Does the presence of overload heaters in this circuit negate that need for a circuit breaker or regular fuses? Explain your answers.