This manual contains information which must be adhered to in order to prevent personal 

injury and property damage. This information is graduated by degree of damage as 

shown below. 

ATTENTION 

Means that an undesired result or undesired state may occur if this note is not heeded.

CAUTION 

Without warning triangle: Means that property damage may occur if appropriate 

precautions are not taken. 

CAUTION 

With warning triangle: Means that minor personal injury and property damage may occur 

if appropriate precautions are not taken. 

WARNING 

Means that major danger of death and substantial property damage may occur if 

appropriate precautions are not taken. 

DANGER 

Means that great danger to life and substantial property damage will occur if appropriate 

precautions are not taken. 

NOTE 

Indicates an important piece of information on the product or the drawing of attention to a 

part of the documentation requiring special attention. 

ACTION 

Means the description of an action which is particularly important for handling the 

product.

WARNING 

To ensure that avoidable problems do not occur during commissioning and/or operation, 

be sure to read these installation and commissioning instructions before installation and 

commissioning. 

In the sense of DIN EN 50178 (formerly VDE 0160), the FDS and MDS model series of 

POSIDRIVE®

 are electrical components of power electronics for the regulation of energy 

flow in high-voltage systems. They are exclusively designed to power servo (MDS) and 

asynchronous (FDS, MDS) machines. Utilization, installation, operation and maintenance 

are only permitted under observation and adherence to valid regulations and/or legal 

requirements, applicable standards and this technical documentation. 

This is a product of the restricted sales class in accordance with IEC 61800-3. In a 

residential zone, this product may cause high-frequency interference in which case the 

user may be requested to take suitable measures. 

 Strict adherence to all rules and regulations must be ensured by the user. 

The safety notes contained in further sections (items) and specifications must be 

adhered to by the user. 

WARNING 

Caution! High touch voltage! Danger of shock! Danger to life! 

When network voltage is applied, never under any circumstances open the housing or 

disconnect the connections. When installing or removing option boards, you may only 

open the inverter in the dead state (all power plugs disconnected) and only after a 

waiting period of at least 5 minutes after the network voltage is switched off. Prerequisite 

for the correct functioning of the inverter is the correct configuration and installation of 

the inverter drive. Transport, installation, commissioning and handling of the device may 

only be performed by qualified personnel who have been especially trained for these 

tasks. 

Pay particular attention to the following: 

• Permissible protection class: Protective ground. Operation is only permitted when the 

protective conductor is connected in accordance with regulations. Direct operation of 

the devices on IT networks is not possible. 

• Installation work may only be performed in the dead state. For work on the drive, lock 

enable and disconnect the complete drive from the power. (Observe the 5 safety 

rules.) 

• Leave the plug for the DC link coupling connected even when the DC link coupling is 

not being used (BG0-BG2: X22)! 

• Discharge time of the DC link capacitors > 5 minutes. 

• Do not penetrate the device’s interior with any kind of object. 

• During installation or any other work in the switching cabinet, protect the device 

against falling parts (pieces of wire, stranded wire, pieces of metal, and so on). Parts 

with conductive properties may cause a short circuit within the inverter or device 

failure. 

• Before commissioning, remove extra coverings so that the device cannot overheat. 

The inverter must be installed in a switching cabinet in which the maximum ambient 

temperature (see technical data) is not exceeded. Only copper lines may be used. The 

line cross sections to be used are contained in table 310-16 of the NEC standard at 

60 o

C or 75 o

C. 

The company STÖBER ANTRIEBSTECHNIK GmbH + Co. KG accepts no liability for 

damages resulting from non-adherence to the instructions or the particular 

regulations. 

The motor must have an integral temperature monitor with basis insulation as per 

EN 61800-5-1 or external motor overload protection must be used. 

Only suitable for use on supply current networks which cannot deliver more than a 

maximum symmetric, nominal, short-circuit current of 5000 A at 480 Volt. 

Integral solid state short circuit protection does not provide branch circuit protection. 

Branch circuit protection must be provided in accordance with the Manufacturer 

Instructions, National Electrical Code and any additional local codes”, or the equivalent. 

Suitable for use on a circuit capable of delivering not more than 10 kA rms. Symmetrical 

Amperes, 480 Volts Maximum” when Protected by RK1 Class Fuses as specified in the 

chapter technical data. 

 Subject to technical changes without prior notification which changes serve to 

improve the devices. This documentation is purely a product description. It does 

not represent promised properties in the sense of warranty law. 

1.2 Software 

Use of the POSITool software The POSITool software package can be used to select an application, adjust parameters 

and signal monitoring of the 5th generation of STÖBER inverters. The functionality is 

specified by the selection of an application and the transmission of these data to an 

inverter. 

The program is the property of STÖBER ANTRIEBSTECHNIK GmbH + Co. KG and is 

protected by copyright. The program is licensed for the user. 

The software is provided exclusively in machine-readable format. 

The customer receives from STÖBER ANTRIEBSTECHNIK GmbH + Co. KG a nonexclusive right to use the program (license) if the program was obtained legally. 

The customer has the right to utilize the program for the above stated activities and 

functions and to make and install copies of the program, including one backup copy, for 

support of said utilization. 

The conditions of this license apply to all copies. The customer is obligated to place the 

copyright note and all other ownership notes on every copy of the program. 

The customer is not authorized to use, copy, change or pass on/transmit the program for 

reasons other than those covered by these conditions; the customer is also not 

authorized to convert the program (reverse assembly, reverse compilation) or compile 

the program in any other manner, or to sublicense, rent or lease the program. 

Product maintenance The obligation to perform maintenance applies to the two last current program versions 

prepared and released for use by STÖBER ANTRIEBSTECHNIK GmbH + Co. KG. 

STÖBER ANTRIEBSTECHNIK GmbH + Co. KG can either correct program errors or 

provide a new program version. The choice is up to STÖBER ANTRIEBSTECHNIK 

GmbH + Co. KG. If, in individual cases, the error cannot be corrected immediately, 

STÖBER ANTRIEBSTECHNIK GmbH + Co. KG will provide an intermediate solution 

which, if necessary, requires adherence by the user to special operating regulations. 

The claim to error correction only exists when reported errors are reproducible or can be 

recorded by machine-made outputs. Errors must be reported in reconstructable form 

giving useful information for error correction. 

The obligation to correct errors is invalidated for such programs which the customer 

changes or manipulates unless the customer can prove when reporting the error that the 

manipulation is not the cause of the error. 

STÖBER ANTRIEBSTECHNIK GmbH + Co. KG is obligated to keep the currently valid 

program versions in a specially protected place (fire-resistant data safe, safety deposit 

box at a bank). 

3.2.2 With Bottom Brake Resistor 

Available for BG 0 to BG 2.

The “brake resistor RB 5000” substructure is the ideal solution when space is 

limited. It is placed between mounting surface and MDS 5000. This increases 

the mounting depth by approx. 20 mm. 

Mounting 

• Secure the bottom brake resistor (A) on the mounting surface 

with the included threaded bolts and spring rings (same drilling 

diagram as MDS 5000) (B). 

• Hook the MDS 5000 in on the four guides (C). 

• Secure the MDS 5000 to the threaded bolts with the two 

included screws (D). 

3.2.3 EMC Shield Plate and Brake Module for 24 V Brake 

The EMC shield plate (EM 5000) and the brake module for 24 V brake 

(BRM 5000) are physically identical units (cf. accessories, chap. 7.1). 

If necessary, the EMC shield plate can be replaced by the 

brake module for 24 V brake. See also chap. 4.4. 

BG 0 – BG 2 

• Position the EMC shield plate at a slight angle and insert the 

two brackets in the provided openings (B). 

• Hook in the EMC shield plate. 

• Secure the device and the EMC shield plate with the 

mounting screw (C). 

• If already installed, secure the motor cable with the EMC 

clamp (A). 

• Check to make sure that the shield of motor cable is 

positioned flat on the EMC shield plate with the EMC clamp. 

See also chap. 4.7. 

BG 3 

• Unscrew the screw (D) on the lower portion of the housing front. 

• Place the brake module for 24 V brake with the two tabs in the two cutouts (E) 

in the housing front. 

• Secure the brake module for 24 V brake with the screw (D)

Installation of Accessories 

Only specialized personnel who are qualified for this task may install accessories (cf. chap. 7). Suitable measures must be 

provided against damage by electrostatic discharging (in accordance with DIN EN 50082-2). Before installation, the device must 

be disconnected from the power and, with the MDS 5xxx/L series, the 24 V power must be turned off. Remember the discharge 

times (≥ 5 min.) for the DC link. 

CAUTION 

Immediately after the power is turned off, the DC link is still charged. Wait > 5 min. for the DC link to discharge 

after turning off the power voltage. To prevent damage to device and accessory parts, install the accessory 

afterwards. 

CAUTION 

Danger of electrostatic charges damaging the PCB! 

Perform potential equalization before you touch a PCB (option module 1 and 2). 

3.3.1 Option module 1 (fieldbus) 

3.3.1.1 CANopen DS-301 (CAN5000) / PROFIBUS DP-V1 (DP5000) 

Installation is the same for both modules. 

• Make sure that the device is without power. Wait ≥ 5 min. for the DC link capacitors to discharge after turning off the power 

supply voltage. 

• Disconnect the cover plate by removing the two screws (E). 

• Remove the prepunched area (A) for the sub D plug connector on the plate. 

• Mount the plate on the board with the included UNC bolts (B). 

• Slide the fieldbus board (C) with the gold-contacted terminal surfaces (D) into the black terminal block. 

CAUTION 

Be sure not to touch the gold contact surface with your fingers (danger of fouling and corrosion). 

• Check correct position of the board. 

• Secure the board with the two included screws (E). 

• Then apply included labels (nameplate and adhesive label for switch setting (CAN)) to the cover plate. 

3.3.1.2 EtherCAT (ECS 5000) 

• Make sure that the device is without power. Wait ≥ 5 min. for the DC link capacitors to discharge after turning off the power 

supply voltage. 

• Disconnect the cover plate by removing the two screws (C). 

• Slide the EtherCAT board (A) with the gold-contacted terminal surfaces (B) into the black terminal block. 

CAUTION 

Be sure not to touch the gold contact surface with your fingers (danger of fouling and corrosion). 

• Check correct position of the board. 

• Secure the board with the two included screws (C). 

• Then apply included labels (nameplate) to the cover plate.

3.3.2 Option module 2 (terminals) 

• Standard (SEA 5000, SEA 5001) 

• Expanded (XEA 5001) 

• Resolver (REA 5000)

Installation is the same for all modules. 

• Make sure that the device is without power. 

• Before installation, remove the blue plastic cover (A) below the serial interface 

(terminal X3). 

• Make sure that the device is without power. 

• Unlock the snap-on lock (B) directly below terminal X3 and, on the snap-on 

lock, pull the cover towards the front. 

• To completely unhook the cover, pull this in the direction of the operator panel. 

• Push the I/O terminal module with the gold-contacted terminal surface (C) 

into the black terminal block (D). 

CAUTION 

Be sure not to touch the gold contact surface with your fingers 

(danger of fouling and corrosion). 

• Check correct position of the board. 

• Secure the board with the two included screws (E). 

• Now hook the plastic cover (A) with the two catches into the plastic housing. 

• Press the plastic cover (A) against the plastic housing until the snap-on lock 

(B) snaps in. 

POSIDRIVE® MDS 5000 – Mounting Instructions STÖBER ANTRIEBSTECHNIK 

4. Electrical Installation 

15

4 ELECTRICAL INSTALLATION 

This chapter gives you complete information on the subject of electrical installation. 

Only specialized personnel who are qualified for this task may install, commission and control the device. 

4.1 EMC 

This chapter contains general information on EMC-suitable installation. These are only recommendations. Depending on the 

application, the ambient conditions and the legal requirements, measures in addition to the following recommendations may be 

required. 

• Mount device or Bottom Brake Resistor on conductive surface (unpainted). 

• Install the power cables in spatially separately from the signal lines (encoder, analog/digital signal lines). 

• Use only shielded cable for motor lines (corresponding cabels can be ordered from STÖBER ANTRIEBSTECHNIK.). 

• Apply shield of the motor cable over a large surface in the immediate vicinity of the MDS 5000. The EMC shield plate (EM 

5000) for mounting on the bottom of the device is available as an accessory (see chap. 3.2.3 and chap. 7.1). 

• With asynchronous machines, apply the shield to the terminal block over a large surface (e.g. PG shield screw connection). 

• Use output deraters for motor lines > 50 m. 

• When an additional transfer plug connector is to be installed in the motor cable, the cable shield may not be interrupted. 

• When the brake line is installed in the motor cable, the brake line must be shielded separately. 

• When the length of the cable for connection of a brake resistor is longer than 30 cm, this must be shielded and the shield 

must be applied over a large surface in the immediate vicinity of the MDS 5000. 

• Connect the shield of the control lines on one side with reference ground of the reference value source (e.g., PLC or CNC). 

• Shield, and, if necessary, twist reference value lines before installing. 

4.2 RCD (Residual Current Protective Devices) 

Network phases and neutral conductors are connected with the protective conductor via Y capacitors. When network voltage is 

applied, a leakage current flows over these capacitors to the protective conductor. The greatest leakage current occurs during a 

malfunction (asymmetric feedin via only one phase) and during power-on (sudden change in voltage). The maximum leakage 

current due to asymmetric power feedin is 40 mA (network voltage of 400 V) for MDS inverters. 

If RCD circuit breakers are necessary, the problem of power-on and off can be alleviated by using selective RCD circuit 

breakers (switch-off delay) or RCD circuit breakers with increased tripping current (e.g., 300 or 500 mA). Only all-current 

sensitive RCD circuit breakers may be used. Operation of several devices on one RCD circuit breaker is not recommended. 

4.3 Power Connection 

Protection via line circuit breakers in accordance with the values listed in chap. 2 (tripping characteristic C, in accordance with 

EN 60 898) or suitable, delayed safety fuse. 

Use class RK1 fuses for UL conformance: Class RK1 (e.g., Bussmann KTS-R-xxA / 600 V)

POSIDRIVE® MDS 5000 – Mounting Instructions STÖBER ANTRIEBSTECHNIK 

4. Electrical Installation 

16 

4.4 Brake Module for 24 V Brake 

The relay in the basic device for brake control is equipped with hardgold contacts. This relay is designed for control of an 

electro-magnetic brake. The brake module for 24 V brake is required for control of a 24 V brake (BRM 5000). A thermally 

monitored and short-circuit-proof, electronic semi-conductor switch is available for switching the brake. When Brake module for 

24 V brake is placed between relay and brake, the integrated filter suppresses the switch-off reactions. This also increases the 

lifespan of the relay contacts. 

For a 230 VAC brake we also recommend control via 

a coupling relay and not directly via the existing relay. 

Installation 

• Connect terminal X302 with terminal X2 

(for connection cable, see chap. 4.7.2). 

• Connect the external 24 V to the power supply of the 

brake on X300 an (for pin allocation, see chap. 5.3). 

• The brake and thermal contact lines installed in the motor 

cable are connected to X301 (for pin allocation, see chap. 5.3). 

POSIDRIVE® MDS 5000 – Mounting Instructions STÖBER ANTRIEBSTECHNIK 

4. Electrical Installation 

17

4.5 DC Link Coupling 

If you are using axes in a plant which operate in a network of generators and motors, the DC link coupling (DC coupling) can be

advantageous. When the DC-coupling is used, the excess energy of other axes is made available as drive power instead of 

converting this excess power into heat with a brake resistor. Remember that you will need a brake resistor which can absorb the

power peaks when all drives in the DC-link network brake at the same time. 

DANGER 

Danger of damage to devices! When single-phase and three-phase devices are coupled, 

the single-phase devices will be destroyed. Use only three-phase devices for the DC link 

coupling!

CAUTION 

Danger of damage to devices! When one device within the DC-link coupling network fails, 

the complete DC-link coupling network must be disconnected from the power network since 

other devices in the DC-link coupling network may be damaged. Be sure to adhere to the 

wiring of the ready-for-operation relay shown in chapter 4.5.1 (X1.1 and X1.2). When a 

failure occurs, replace all devices of one group. 

NOTE 

Please note that the parameter A38 DC power-input must be set before the DC link 

coupling will function correctly. 

Group 1: A38 = 0: inactive

Group 2 and 3: A38 = 1: active

For more details, also see the description of the parameter. 

4.5.1 Basic Circuit Diagram 

The following diagram shows the basic circuiting of the DC-link coupling. The inverters can be coupled together in up to three 

groups. The table in chapter 4.5.2 shows the possible combinations. The combination determines the types of power fuse and 

DC-link fuse. 

MDS/FDS

5000

MDS/FDS

5000

MDS/FDS

5000

MDS/FDS

5000

MDS/FDS

5000

MDS/FDS

5000

MDS/FDS

5000

X10 X10 X10 X10 X10 X10 X10

X1 X1 X1 X1 X1 X1 X1

X221

X221

X22 X22 X22 1

X22 X22

RB RB U+ U+ U+ U+ U- U- U- U- U+ U+ U+ U- U- U11 1 1 22 2 2 111 222

L1

NOTE 

The certified version of the safety function is available for designs BG 0 to BG 2 as per EN 

954-1 category 3. You will find the certificate under www.stoeber.de 

The ASP 5001 may only be installed and repaired by STÖBER ANTRIEBSTECHNIK. This 

is why you should include installation in the inverter with your order of the ASP 5001. 

NOTE 

When certified use is required, the inverter must be installed in a switching cabinet with a 

protection rating of IP54. 

4.6.1 Description 

On the MDS 5000 inverter the safety function “safe torque off” can be implemented with option ASP 5001. When the safety 

function is used the inverter must be able to be switched off in two different ways. The first way to switch off the inverter uses 

the enable function. Diagnosis is performed via a binary output of the options SEA 5000, REA 5000, XEA 5001 or a fieldbus 

system. 

The second way to switch off the inverter uses the ASP 5001 option in addition. When the ASP 5001 option is activated, control 

of the end stage is switched off with the positively-driven switch elements of a safety relay. The reference value input is 

disabled, and the signal contact is switched to an external safety circuit (break contact). The motor cannot start up even when

there are defects in the end stage or the control circuit since the necessary phase sequence is no longer generated. 

Advantages of the ASP 5001 option:

• No switching of the network voltage necessary and the DC link remains charged. This permits a faster restart. 

• Less contact wear since only low voltage is switched. 

• Less additional wiring work. 

4.6.2 Use 

WARNING 

The starting lockout option only switches off the end stage. Dangerous voltages may still be 

present on the motor terminals! 

This means that the starting lockout option does not provide galvanic isolation from the 

power network. The function does not provide protection against “electrical shock.” 

During maintenance or repair work an appropriate voltage-free circuit and system protection 

are required. 

The regulations for emergency off situations must be adhered to. 

WARNING 

Since the safety function ensures that the motor torque is switched off, axes that are moving 

vertically must be protected against crashing down. 

WARNING 

Since the motor may run down in an undefined state when the starting lockout is activated 

during operation, it is essential to adhere to the switchoff sequences which will be described 

in the following section (1st and 2nd ways to switch off).