Table of Contents
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Table of Contents
Related Manuals for Mitsubishi Electric MS-T Series
Summary of Contents for Mitsubishi Electric MS-T Series
- Page 1 Magnetic Magnetic Contactors and Starters MS-T Series INSTRUCTION MANUAL...
- Page 3 Failure to observe this could lead to electric shocks or burns. CAUTION Do not modify or disassemble the MS-T series. The parts such as the contacts or coils cannot be replaced. Failure to observe this could result in faults.
- Page 4 CAUTION The areas around the terminals and coils will become hot while the power is ON. Do not touch these without proper care. Never manually operate the product in the live state. If contacts are by switched excessive currents, or if contacts are welded and do not open due to abnormal wear, deterioration of the contacts, or the end of product life, the machine device could become uncontrollable.
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Page 5: Table Of Contents
2. Storage and Transportation ......................6 3. Mounting and Connection ........................ 7 3.1 Mounting..........................7 3.2 Connection ..........................8 3.3 Installation Instruction for Accessories of MS-T Series ............12 3.3.1 Additional auxiliary contact blocks................12 3.3.2 Mechanical interlock kits..................13 3.3.3 Surge absorber......................15 3.4 Wiring Diagram........................ -
Page 6: Working Environment
1. Working Environment Using this product in an environment or atmosphere other than the normal working CAUTION conditions could lead to failure. Always use the product under the normal working conditions. The working environment varies as the controller is used in a wide range of applications. However, the product has been manufactured to be used under the following normal working conditions. - Page 7 For special environment Special environment Problem points General measures Name Type Rusting or Install a space malfunctioning due heater to lower the to dew relative humidity. Move the product condensation (freezing) to a place with little temperature change.
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Page 8: Storage And Transportation
2. Storage and Transportation Take caution to injuries from the edges of the packaging material or the product, or CAUTION from dropping the product. Confirm that no parts have fallen off or been damaged due to accidents during transportation. -
Page 9: Mounting And Connection
3. Mounting and Connection Do not touch or go near the product while the power is ON. Failure to observe this WARNING could lead to electric shocks or burns. Make sure that foreign matter does not enter the product during mounting or wiring. CAUTION There is a risk of load damage or fires resulting from contact faults or operation faults. -
Page 10: Connection
Minimum mounting clearance Always observe the specified minimum mounting clearance and arc space. Hot CAUTION ionized gas will be discharged when the current switches. Refer to Table 1. When mounting the Magnetic Contactors side by side, be sure to keep the devices isolated by a distance longer than the dimension shown in the following table. - Page 11 (3) Connection to streamlined wiring terminal (For S-TBC, SR-TBC, TH-TBC) Bare wire, single wire, Y-type crimp terminal Insert the wire and Y-type crimp terminal into the terminal. (Fig. 1) When doing so, make sure the insulator such as wire’s sleeve does not get caught in the te rminal Tighten the terminal screw with the specified tightening torque.
- Page 12 (5) For the applicable wire size and terminal screw tightening torque, refer to Table 2. (6) Always ground the metal enclosure. Table 2 Wire size and tightening torque Model Terminal dimension and size/type of screw Connection Applicable solderless Tightening torque of Applicable electric wire conductor terminal size...
- Page 13 Examples of general tightening torque Maximum tightening torque of screwdriver [N Phillips screwdriver Right Left Both (made by VESSEL) hand only hand only hands No.1 bit No.2 bit No.3 bit A typical male has an arm strength of 200N, so if the tightening tool 1.
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Page 14: Installation Instruction For Accessories Of Ms-T Series
3.3 Installation Instruction for Accessories of MS-T Series 3.3.1 Additional auxiliary contact blocks (1) Types and applicable magnetic contactors and contactor relays Applicable magnetic Contact Available nunmber of Types Method contactors and arrangement accessories contactor relays 4a (4NO) S-T10,S-T12, UT-AX4... -
Page 15: Mechanical Interlock Kits
3.3.2 Mechanical interlock kits When two or more contactors are used, and a short circuit might occur if they turn CAUTION ON simultaneously. Provide a mechanical interlock to prevent simultaneously contacting of the contacts. (1) Types and applicable magnetic contactors Types Applicable magnetic contactors UT-ML11... - Page 16 (4) Interlock kits mounting procedures UT-ML11········ T10, T12, T20 Installation and Removing Interlock kit Thread fastening Wiring black Terminal cover Removing Torque 0.3-0.5 N・m T10, T12, T20 UN-ML21 ······· T21, T25, T32 Coupling block T21, T25, T32...
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Page 17: Surge Absorber
3.3.3 Surge absorber The varistor (used in the coil , surge absorber , etc.) may emit smoke due to CAUTION deterioration. Make sure not to near the product during operation, and always use a short-circuit protection device such as a fuse on the operating circuit. ... -
Page 18: Wiring Diagram
3.4 Wiring Diagram (representative example) 3.4.1 S-T □ S-T10(1NO) S-T10(1NC) S-T12, T20 S-T12,T20(2NO) S-T12, T20(2NC) S-T21, T25 S-T32... - Page 19 × 3.4.2 S-2 T □ S-2×T10 S-2×T12, T20 S-2×T21, T25 S-2×T32...
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Page 20: Th-T□(Kp)
3.4.3 TH-T □(KP) TH-T18,T25 TH-T18KP,T25KP 3.4.4 MSO-T □(KP) MSO-T10 MSO-T10KP MSO-T12, T20 MSO-T12KP, T20KP MSO-T21, T25 MSO-T21KP, T25KP... -
Page 21: Mso-2×T□(Kp)
× 3.4.5 2 T □(KP) MSO-2×T10 MSO-2×T10KP MSO-2×T12, T20 MSO-2×T12KP, T20KP MSO-2×T21, T25 MSO-2×T21KP, T25KP... -
Page 22: Maintenance And Inspection Of Thermal Overload Relay
(3) Contact configuration For the MS-T series, the thermal overload relay contact is configured as 1NO/1NC contact as shown below. The NO and NC contacts can be used as independent contacts, and differing voltages can also be used. - Page 23 Combination of MSO-T10 (BC), T12 (BC), T20 (BC) [Applicable magnetic contactor and thermal overload relay] Combined devices Magnetic starter Magnetic Thermal Connection contactor overload relay conductor MSO-T10 S-T10 TH-T18 – MSO-T12 S-T12 TH-T18 – MSO-T20 S-T20 TH-T18 – [Assembly procedure] 1.
- Page 24 Combining MSO-T21 (BC), T25 (BC) The optional UN-TH21 connection conductor is required for assembly. [Outside view of the [Applicable magnetic contactor and thermal overload relay] connection conductors] Combined devices UN-TH21 Magnetic starter Magnetic Thermal Connection contactor overload relay conductor Connection MSO-T21 S-T21...
- Page 25 (4) Ambient temperature and settling current The TH-T series thermal overload relay is adjusted based on an ambient temperature of 20°C when used in the standard boxed magnetic motor starter (MS type). (The temperature in the control panel for the MSO type magnetic motor starter is 35°C.) The TH-T type thermal overload relay is equipped with an ambient temperature compensation device, so the operating characteristics are less likely to be affected by the ambient temperature changes.
- Page 26 (6) Prevention of foreign matter entering the display window Note that the relay may not trip if foreign matter such as wire scraps enters the display window. (7) Automatic resetting method Secure safety by assuming that accidents may occur due to automatic restarting CAUTION of the machine device, etc., when the output contact is recovered due to the automatically-reset thermal overload relay, or when the power is recovered after a...
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Page 27: Recommended Update Interval
5. Recommended Update Interval The recommended update timing for each device is 10 years or the specified number of switching times listed in the catalog, etc. This recommended update interval is not a value guaranteed in respect to the functions or performance. Instead, it is an interval generally believed to be effective for replacing the part with a new part for economic feasibility, and due to the deterioration of the device component’s materials when the product is used under normal working conditions and the following maintenance and inspections are carried out. -
Page 28: Troubleshooting List
7. Troubleshooting List Trouble State Cause Measures The coil rating voltage is incorrect. Replace the correct entire unit. The terminal voltage is low (85% or A beating Modify to the specified voltage. less). sound (loud or Power supply quiet) is The voltage capacity is Increase the power supply capacity. - Page 29 Trouble State Cause Measures Insulation deterioration Short circuit on No-fuse Check the cause and make modifications. Wiring failure load side breaker or If there is a fault with the unit, replace the Handling mistake fuse blew unit. Simultaneously closing when using reversing or -...
- Page 30 Trouble State Cause Measures The shading coil has a breakage (life). Replace the entire unit. Incorrect mounting or distortion of Change to correct mounting. mounting surface. The coil voltage is incorrect. (Low Replace with the entire unit having the The sound voltage) correct coil rating.
- Page 32 Magnetic Contactors and Magnetic Starters INSTRUCTION MANUAL Safety Warning To ensure proper use of the products listed in this catalog, please be sure to read the instruction manual prior to use. HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN www.MitsubishiElectric.co.jp/melfansweb （...