Master/Slave Wiring; All Master/Slave Combinations; Mep-7802/7852 Proportional Actuators - KMC Controls MEP-7 Series Application Manual

Master/Slave Wiring

All Master/Slave Combinations

1. Follow the instructions in the Wiring (General)
section of the MEP-7200/7500/7800 Series
Installation Guide
steps.
2. Connect the actuators according to the relevant
illustration below.
4. Check that the wiring is properly phased ("~"
to "~" and " " to " "). In tri-state actuators, CW
and CWW are connected to like terminals for
"stacked-mounted" applications and opposite
terminals for "opposite-mounted" applications.
2. On applicable models, set the Master and the
Slave's CW/CCW switches according to the
relevant illustration and chart.

MEP-7802/7852 Proportional Actuators

24 VAC/VDC
Power In
MASTER MASTER
CW/CCW Switches
Opposite Positions
MEP-7802/7852 Dual Actuators, 0–10 or 2–10 VDC, OPPOSITE Mount (e.g., on KMC's flanged globe valves)
24 VAC/VDC
Power In
MASTER MASTER
CW/CCW Switches
Same Positions
MEP-7802/7852 Dual, Triple, or Quad Actuators, 0–10 or 2–10 VDC, STACKED Mount (e.g., on KMC's butterfly valves)
MEP-7xxx Direct-Coupled Actuators (up to 320 in-lb.)
and also include the following
(MEP-7802/7852 Opposite Mount, Proportional Input)
DIRECTION
Fail Switches (MEP-7852 only)
Opposite Positions
(MEP-7802/7852 Stacked Mount, Proportional Input)
FAIL-SAFE
DIRECTION
Fail Switches (MEP-7852 only)
Same Positions
3. On applicable models, set the Master and the
Slave's FAIL switches according to the relevant
illustration and chart.
5. If using feedback, connect to one actuator only.
Do NOT interconnect the feedback between the
master and slave.
NOTE: The 4–20 mA input and auto-mapping
options are not available with Master/
Slave actuators.
CAUTION
Miswiring or wrong switch positions could
result in damage to one or more actuators.
Carefully check wiring and switch positions.
SLAVE
FAIL-SAFE
SLAVE
7
Control Signal Common
0/2–10 VDC Control Signal
0/1–5 or 0/2–10 VDC
Feedback Signal
Unavailable Options
4–20 mA input and Auto-Mapping
Control Signal Common
0/2–10 VDC Control Signal
0/1–5 or 0/2–10 VDC
Feedback Signal
Unavailable Options
4–20 mA input and Auto-Mapping
Applications Guide, AN1113A Rev. D
Input Voltage
Range Set the
Same on Both
Actuators
FAIL-SAFE
DIRECTION
Input Voltage
Range Set the
Same on Both
Actuators
FAIL-SAFE
DIRECTION