SEW MOVIDYN ® Series servo controller

Ref+1, 2 Pink (PK), Grey (GY)

Cos+3, 4 Red (RD), Blue (BU)

Sin+5, 6 yellow (YE), green (GN)

TF/TH (motor protection) 7, 8 white (WH), brown (BN)

The maximum length of the cable is 100 meters, using shielded twisted pair cables, with each pair individually shielded.

When the length is greater than 50 meters, the recommended cross-sectional area for the wire is 0.50 mm ²; When ≤ 50 meters, 0.25 mm ² can be used.

The two ends of the shielding layer are extensively grounded to the X0 shielding terminal.

4.2 Binary Input/Output and Braking Control

X21 Terminal Function (Factory Setting):

X21.5: Controller inhibit - "1"=enable, "0"=disable (output stage off)

X21.6: Enable - must be "1" to run

X21.7: Limit switch CW (positive limit)

X21.8: Limit switch CCW (negative limit)

X21.9: Brake (brake output) - Relay driver, 24V/150 mA, cannot directly drive the brake coil, requires external brake relay K13 or micro contactor K12

X21.10: Ready for operation output

X21.11/12:24V output (200 mA) and reference potential

Important: For elevator applications, the disconnection of the brake must be performed simultaneously on both the DC and AC sides (i.e. dual circuit cutoff) to ensure safety. The braking response time should refer to the table in the DFS/DFY motor manual.

4.3 RS-485 interface

Connect up to 32 sites (master-slave mode or PLC control).

Use 4-core shielded cable: two cores for signal (RS-485+, RS-485-) and two cores for 0V5 reference potential.

The maximum total length is 200 meters. The dynamic terminal resistor is already built-in, external terminal resistors are prohibited.

Start debugging and parameter settings

5.1 Preparation before Debugging

Hardware inspection: Confirm that all power supplies, busbars, 24V buses, and data buses are connected correctly; The limit switch has been connected or temporarily shorted to+24V (otherwise, fault 27 may occur).

Set axis address: Use the S1 button on the module to set the address (0-59). The factory address is 00 and cannot be duplicated in multi axis systems. Short press S1 to display the current address, long press to enter editing mode, and release to save the address.

Connect PC: Connect to the PC running MD_SHELL software through the USS21A option (X01 connected to MPB or X2 connected to MKS) or directly via RS-232/RS-485. Note: The module and PC must be powered off during connection.

5.2 MD_SHELL Quick Start

Select [Parameter] → [Startup] in MD_SHELL and enter the following data as prompted:

Menu Item Description

Motor Type: Select DFS/DFY model from the list or manually enter

Rated Motor Voltage nameplate rated voltage (e.g. 400V)

Rated Speed nameplate rated speed (e.g. 3000 rpm)

Does the brake have a brake (affecting the calculation of moment of inertia)

Speed Control Loop Damping Coefficient (0.5~2.0, default 1.0 as critical damping)

Speed Control Loop Stiffness Coefficient (0.5~2.0, default 1.0, increasing can improve response but is prone to oscillation)

Positioning Control Time Interval: The cycle time of upper positioning control

Is Drive Backlash Free

Moment of Inertia at Motor Shaft load converted to the moment of inertia of the motor shaft (unit: 10 ^ -4 kgm ²)

Shortest Required Ramp Time

Rated current of the motor

Calculate all controller parameters using [F2] and download them to the inverter using [F3]. The initial settings are usually suitable for most applications, and if optimization is needed, the analog output of MD_SCOPE software or AIO11 option can be used to observe the waveform and adjust it.

5.3 Terminal allocation programming

If it is necessary to modify the default function of binary input/output, remapping can be done through parameters P300 (basic unit input), P320 (basic unit output), etc. The optional signals include: Enable / Ramp gen. switchover / Controller inhibit / Hold control / External fault / Reset / Limit switches / Reference cam  Wait.

5.4 Summary of Parameter List

Section 6.2 of the manual lists the complete parameter system, with key parameter groups including:

P0_: Display values (speed, current, utilization rate, etc.)

P1_: Set value and ramp generator (P100 operating mode, P110 set value source, P12/P13 ramp time)

P2_: Controller parameters (P200 speed loop gain, P201 speed loop time constant, P202 D component, P204 acceleration feedforward gain)

P3_: Terminal allocation (binary input/output, analog output)

P4_: Reference signal (speed reference value, current reference value, set/actual value comparison)

P5_: Control function (P500 braking function, P510 speed monitoring)

P6_: Special Features (P610 factory reset, P620 fault response, P630 automatic reset, P640 parameter lock)

P7_: Fieldbus parameters (P780 PO1 setting value description, P790 enable fieldbus setting value, etc.)

Operation display and fault diagnosis

6.1 Status indication

Power module LED:

ON (green): DC bus voltage and internal 24V are normal, ready

24V (green): 24V electronic power supply is normal

TRIP (red): Fault (axis module will display fault code)

Axis module/compact controller 7-segment code display:

1: Speed control enable

2: Enable torque control

3: Quick Parking

4: Controller prohibition