MEP-7xxx Direct-Coupled Actuators (up to 320 in-lb.)
7
Applications Guide, AN1113A Rev. D
Master/Slave Wiring
All Master/Slave Combinations
1. Follow the instructions in the Wiring (General)
and also include the following
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.
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.
MEP-7802/7852 Dual Actuators, 0–10 or 2–10 VDC, OPPOSITE Mount (e.g., on KMC’s flanged globe valves)
CW/CCW Switches
Fail Switches (MEP-7852 only)
Unavailable Options
Opposite Positions
Opposite Positions
4–20 mA input and Auto-Mapping
MEP-7802/7852 Proportional Actuators
MEP-7802/7852 Dual, Triple, or Quad Actuators, 0–10 or 2–10 VDC, STACKED Mount (e.g., on KMC’s butterfly valves)
CW/CCW Switches
Fail Switches (MEP-7852 only)
Unavailable Options
Same Positions
Same Positions
4–20 mA input and Auto-Mapping
24 VAC/VDC
Power In
0/2–10 VDC Control Signal
0/1–5 or 0/2–10 VDC
Feedback Signal
Control Signal Common
Input Voltage
Range Set the
Same on Both
Actuators
MASTER
SLAVE
(MEP-7802/7852 Opposite Mount, Proportional Input)
MASTER
(MEP-7x52 Only)
CW
CW
CCW
OUT
COM
24 V
AC
CCW
OFF
0/1-5
0/2-10
0/2-10 IN
4-20 mA IN
DIRECTION AND MAPPING
FAIL-SAFE
DIRECTION
~
0-10
2-10
(MEP-7x52 Only)
CW
CW
CCW
OUT
COM
24 V
AC
CCW
OFF
0/1-5
0/2-10
0/2-10 IN
4-20 mA IN
DIRECTION AND MAPPING
FAIL-SAFE
DIRECTION
~
24 VAC/VDC
Power In
0/2–10 VDC Control Signal
0/1–5 or 0/2–10 VDC
Feedback Signal
Control Signal Common
Input Voltage
Range Set the
Same on Both
Actuators
MASTER
SLAVE
(MEP-7802/7852 Stacked Mount, Proportional Input)
MASTER
(MEP-7x52 Only)
CW
CW
CCW
OUT
COM
24 V
AC
CCW
OFF
0/1-5
0/2-10
0/2-10 IN
4-20 mA IN
DIRECTION AND MAPPING
FAIL-SAFE
DIRECTION
~
0-10
2-10
(MEP-7x52 Only)
CW
CW
CCW
OUT
COM
24 V
AC
CCW
OFF
0/1-5
0/2-10
0/2-10 IN
4-20 mA IN
DIRECTION AND MAPPING
FAIL-SAFE
DIRECTION
~
