KMC Controls MEP-4800 Series - Manual (Page 2)

MEP-4000/4800 Series 2 Installation Guide
Illustration 3—MEP-4xx1/4x13 TRI-STATE Wiring
Illustration 4—MEP-4xx1/4x13 2-POSITION (3-Wire) Wiring
Illustration 5—MEP-4xx2 Proportional Wiring
Wiring
NOTE: Before January 2014, MEP-40x2/48x2
models had 0–10 VDC inputs. They now
have 2–10 VDC inputs. When replacing
an older 0–10 VDC actuator with a 2–10
VDC actuator, configure the connected
controller or thermostat output to match.
See the model number on the actuator label and the
relevant wiring illustration (2 through 5).
MEP-4003 Only
NOTE: The MEP-4003’s terminals are not enclosed
inside the case as the other models are.
1. Route the cable through the strain relief molded
in the lower left of the case. (See Illustration 2.)
2. Connect the wires to the terminal block.
Illustration 2—MEP-4003 (Only) Wiring
All Except MEP-4003
1. Loosen the screw on the tethered access cover and
remove the cover.
2. Slide the conduit fitting plate out.
3. Using a utility knife or drill, cut the red plug
to accept wiring or replace the plug with an
application-specific fitting.
NOTE: The red plug (or similar fitting) protects
internal components from debris, helping to
ensure long actuator life.
4. Thread wires through the plugged opening and
connect to the terminal block. (See Illustrations 3
through 5.)
NOTE: For your convenience, the wiring terminal
block is removable.
5. Connect and adjust the auxiliary switch if
required (MEP-4x2x only). See Auxiliary Switch
(4x2x) on page 4 .
6. Reinstall the terminal block on the pins (if
removed) and the conduit fitting plate.
7. For MEP-4xx2 (proportional) models, adjust the
auto-mapping range reset, rotation direction, and
feedback voltage as needed. See Illustration 5 and
Direction, Feedback, and Auto-Mapping (MEP-
4xx2) on page 3 .
8. For MEP-4xx1/4x13s, adjust rotation direction
switch if needed (see Illustration 3 and 4).
9. Reinstall the tethered cover and tighten the screw.
CW
COM
CCW
Switch Position:
1 = Rotation is
Direct
0 = Rotation is
Reversed
–
~
Feedback Potentiometer
(MEP-4x13 Only)
Power
Supply
CW
COM
CCW
Feedback Potentiometer
Switch Position:
1 = Rotation is
Direct
0 = Rotation is
Reversed
Contact Position: Open = CW Rotation, Closed = CCW Rotation
(MEP-4x13 Only)
–
~
Power
Supply
Power
Supply
~
–
–
+
Control Signal
2–10 VDC
–
+ Feedback Output
1–5 or 2–10 VDC
–
~
Power Supply
Strain Relief