Table of Contents
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Applications Guide
Contents
Introduction .................................................................................................................................... 3
Important Notices........................................................................................................................... 3
Actuator Torque Selection ............................................................................................................... 4
Heat/Cool/VAV Applications (with the CTE-5202 Thermostat) ....................................................... 4
Accessories ..................................................................................................................................... 5
Ball Joint and Crank Arms ............................................................................................................ 5
Enclosure, Cord Grip, and Wiring Kits ......................................................................................... 6
Mounting (Non-Rotation) Brackets .............................................................................................. 7
Thermostat .................................................................................................................................. 7
Transformers ................................................................................................................................ 7
VEB-4x Series Valves Mounting/Repair Kits ................................................................................. 8
Troubleshooting .............................................................................................................................. 9
Auxiliary Switch Does Not Work ................................................................................................. 9
Fail-Safe Does Not Work .............................................................................................................. 9
Feedback Does Not Work ............................................................................................................ 9
No Rotation ................................................................................................................................. 9
MEP-4xxx Direct-Coupled Actuators (40 to 90 in-lb.)
Direct-Coupled Actuators (40 to 90 in-lb.)
1
MEP-4xxx
Applications Guide, AN0513A Rev. J
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Summary of Contents for KMC Controls MEP-4 Series
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Page 1: Table Of Contents
MEP-4xxx Direct-Coupled Actuators (40 to 90 in-lb.) Applications Guide Contents Introduction ............................ 3 Important Notices........................... 3 Actuator Torque Selection ....................... 4 Heat/Cool/VAV Applications (with the CTE-5202 Thermostat) ............4 Accessories ............................. 5 Ball Joint and Crank Arms ......................5 Enclosure, Cord Grip, and Wiring Kits ..................6 Mounting (Non-Rotation) Brackets .................... - Page 2 Rotation in Wrong Direction ....................... 9 Stroke Range Is Wrong ........................ 9 Configuration ..........................10 Proportional (MEP-4xx2) Models Setup ..................10 Wiring Issues ..........................10 Two-Position Wiring (MEP-4001/3/4/5) ..................11 Tri-State/2-Position Rotation Direction ..................11 Auxiliary Switch (MEP-4x2x/4x7x) .................... 12 Fail-Safe Direction (MEP-42/45/49xx) ..................
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Page 3: Introduction
KMC Actuators Selection Guide ties with respect to this document. In no event shall KMC Controls, Inc. be liable for any damages, direct • MEP-4000/4800 Series (40/80 in-lb., proportional or incidental, arising out of or related to the use of... -
Page 4: Actuator Torque Selection
Actuator Torque Selection Damper manufacturers should provide information by multiplying the height and width in inches and about the required minimum actuator torque. If then dividing by 144.) that information is not available, use the following After minimum torque is known, see the actuator general guidelines to calculate the required torque. -
Page 5: Accessories
Accessories HLO-4001 crank arm Ball Joint and Crank Arms kit is used when direct 5/16" Dia. Rod mounting of the actuator (not included) VTD-0804 is impractical. See also the Ball Joints VTD-0804 replacement ball joint and VTD- 14xx crank arms. Crank (Not included) 1/4-28X3/4"... -
Page 6: Enclosure, Cord Grip, And Wiring Kits
Enclosure, Cord Grip, and Wiring Kits HMO-4521 liquid-tight cord grip threads into conduit fittings on MEP-4xxx actuators (except the MEP-4003) when an ingress protection rating of IP54 is required. The HMO-4521 accepts 0.18 to 0.40" diameter cables. There are five per pack. See also the HCO-1151, HPO-4001, and HPO-4051. -
Page 7: Mounting (Non-Rotation) Brackets
Mounting (Non-Rotation) Brackets Non-Rotation Bracket (HMO–4002) Provided HMO-4002 non-rotation bracket is provided HMO-4004 non-rotation bracket kit is used for with MEP-40xx/48xx/425x/455x actuators (but is not mounting to ball valves. for use with MEP-427x/457x/49xx models). See also the HMO-4001. Non-Rotation “T” Bracket (HMO–4001) Order Separately 9"... -
Page 8: Veb-4X Series Valves Mounting/Repair Kits
VEB-4x Series Valves Mounting/Repair Kits Handle High-Low Screws HPO-5074 assembled on Cover a Valve Body and an MEP- 4xxxV Actuator Shaft 12 mm Screws 15 mm Screws (VFB-4303_SX Bodies (VFB-4____BX Bodies and VEB-4303_SDL Valves) and VEB-4____B__ Valves) Beaded Tie Locking Bail/Clip Valve Base Thermal Break... -
Page 9: Troubleshooting
Troubleshooting • Check that the shaft moves freely. (Press and Auxiliary Switch Does Not Work hold the gear disengagement lever and manually • Check the auxiliary switch setting. See Auxiliary rotate the shaft.) Switch (MEP-4x2x/4x7x) on page • Check for a tripped circuit breaker to the trans- •... -
Page 10: Configuration
Configuration Proportional (MEP-4xx2) Models Setup Wiring Issues • Check for correct wiring for the application. NOTE: Before Jan. 2014, MEP-40x2/48x2 proportional models had 0–10 VDC inputs • Check the wiring at the connected devices. and 0–5 or 0–10 VDC feedback (only). •... -
Page 11: Two-Position Wiring (Mep-4001/3/4/5)
Two-Position Wiring (MEP-4001/3/4/5) Tri-State/2-Position Rotation Direction MEP-4xx4/4xx5 two-position actuators have “tradi- Tri-state/two-position MEP-4xx1/4xx3 models (ex- tional” two wires for 24 VAC/VDC or 100–250 VAC cept MEP-4003) have switches for selecting rotation signal/power. direction. Be sure switches are set correctly for the application. -
Page 12: Auxiliary Switch (Mep-4X2X/4X7X)
Auxiliary Switch (MEP-4x2x/4x7x) Method 2 (Setting where Rotation Trips) 1. While pressing the gear disengagement lever, rotate the actuator to the point where the auxiliary switch should trip. Actuator Shown At 45° Rotation 2. Using a small, flat-bade screwdriver, adjust the rotary dial to “0”. -
Page 13: Fail-Safe Direction (Mep-42/45/49Xx)
Index Fail-Safe Direction (MEP-42/45/49xx) Symbols 0-5/0-10 vs. 1-5/2-10 VDC Feedback: 0-10 vs. 2-10 VDC Inputs: Accessories: Applications: Auto-Mapping: Fail-Safe Auxiliary Switch: 9, MEP-4xxx Brackets, Non-Rotation: 24 VAC All fail-safe MEP-42xx/45xx/49xx models offer Cable: selectable clockwise or counterclockwise direction. Conduit Fitting: (Proportional and tri-state models also offer the op- Configuration: tion to turn the fail-safe off—usually temporarily for... - Page 14 19476 Industrial Drive Fail-Safe Direction: 9, New Paris, IN 46553 Feedback Voltage: 574.831.5250 Rotation Direction: 9, Fax 574.831.5252 www.kmccontrols.com info@kmccontrols.com MEP-4xxx Direct-Coupled Actuators (40 to 90 in-lb.) Applications Guide, AN0513A Rev. J © 2017 KMC Controls, Inc. AN0513A Rev. J...
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