iSMA CONTROLLI MDLX2B User manual

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The performances stated in this sheet can be modifi ed without any prior notice.
page 1DIM014en | 1st Issue | 07/2022
MDLX_B
Damper Actuators
GENERAL
MDLX_B model corresponds to the actuator having 24 V AC power supply without control board. The board assemblymust be
arranged by the user.
Actuator
(without board)
Floating
Board
MDL4x,
MDLPA4*
Prop.
Potentiometric
Board MDL3x
Module**
(Prop. V/I)
MDLS5 (xed
ranges)
iSMA
CONTROLLI
Model
MDLX2B 6 Nm x MDL42 3P
MDLX4B 20 Nm x MDL44 3P
MDLX6B 30 Nm x MDL46 3P
MDLX2B 6 Nm x MDL32 prop. Ohm
MDLX4B 20 Nm x MDL34 prop. Ohm
MDLX6B 30 Nm x MDL36 prop. Ohm
MDLX2B 6 Nm x MDL52 prop V/I
MDLX4B 20 Nm x MDL54 prop V/I
MDLX6B 30 Nm x MDL56 prop V/I
(*) MDLPA4 board = with 1 Kohm feedback potentiometer.
(**) MDLV5 (adjustable elds and ranges) model is available as an alternative to MDLS5. Mother board
MDL4X-MDLPA4-MDL3X BOARDS MOUNTING AND CONNECTIONS
• Remove the actuator cover.
• Mount the mother board paying attention that the centring holes are correctly placed into the rods protruding from the
support and that the 4 support catches t the mother board.
• Connect the stroke end cables to the mother board using the corresponding connectors:
• yellow wire connectors to the G marked connector on the board
• red wire connectors to the R marked connector on the board
• Connect the motor cables by the respective connector (4-wire) to the mother board, as follows:
Control Type Motor Torque
(Nm) Board Type Connector Model (on Mother Board)
Floating 6MDL4X-MDLPA4 J4 (MDL42)
Floating 20-30 MDL4X-MDLPA4 J1 (MDL44-46)
Prop. 6MDL3X J1 (MDL32-52)
Prop. 20-30 MDL3X J5 (MDL34-36-54-56)
• After linking the connector, insert the cables inside the guide on the board support.
• Mount the gear couple of the potentiometer (present into the packaging), only for MDL3. proportional models.
• For MDLPA4 board see “Accessories and options” installation instructions.
• Mount the plate 8 and the ring 6 on the gear 7.
• Mount simultaneously the gear couple on the potentiometer shaft and on the hexagonal shaft as showed in g. above.
• Make sure that the gear 7 hits on the hexagonal shaft and that it meshes correctly with the gear 3.

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iSMA CONTROLLI S.p.A. - Via Carlo Levi 52, 16010 Sant’Olcese (GE) - Italy | [email protected]
page 2DIM014en | 1st Issue | 07/2022
MDL3X BOARD MOUNTING OF MDLS5/V5 MODULES
(To obtain a proportional actuator with voltage or current signal)
• Insert the module onto the male strip on the board (removing preventively the SW9 jumper), paying attention that all strip
terminals enter correctly into the female plug.
• Fasten the module with the supplied screw.
• Select the control signal (V or I) and the desired range.
ADJUSTMENT (PROPORTIONAL MODELS)
• Set the 90°/160° stroke by the cams and the SW4 switch.
• Move the CM1 switch to MAN.
• Using a screwdriver, rotate the potentiometer shaft (small gear) counterclockwise until its mechanical stop.
• Power the actuator between the L1 and L2 terminals.
• Bring the actuator to stroke end by the SW7 switch.
• Bring the actuator to stroke start SW7 switch.
• Using a screwdriver, rotate the P4 trimmer until the tester indicates 0V ± 0,1 V on the M (-) and S2 (+) terminals.
• Move the CM1 switch to AUTO.
• For strokes dierent from 90°/160°, once calibration is carried out, see the MDL installation instructions.
LABELS
Attach an adhesive label (the bigger one) with the electrical connections inside the cover and, on the case, the label with iSMA
CONTROLLI references.