Festo CMMT-AS-S1 Series Manual
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Festo CMMT-AS-S1 Series Manual

Festo CMMT-AS-S1 Series Manual

Description, safety function, sto, sbc, ss1
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Servo drive
CMMT-AS-...-S1
Description | Safety
function | STO, SBC,
SS1
8075813
8075813
2018-02
[8075815]

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Summary of Contents for Festo CMMT-AS-S1 Series

  • Page 1 Servo drive CMMT-AS-...-S1 Description | Safety function | STO, SBC, 8075813 8075813 2018-02 [8075815]...
  • Page 2 Translation of the original instructions ® ® ® ® ET 200SP , PNOZ , Pilz , SIEMENS are registered trademarks of the respective trademark owners in certain countries. Festo — CMMT-AS-...-S1 — 2018-02...

  • Page 3: Table Of Contents

    SBC installation......................24 SS1 installation......................25 Installation for operation without safety function............26 Commissioning......................26 Safety..........................26 Check lists........................27 Operation........................29 Malfunctions....................... 29 Diagnostics via LED...................... 29 Repair..........................30 Technical data......................31 Technical data, safety equipment................. 31 Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 4 Technical data product conformity and approvals............35 General technical data....................35 Technical data, electrical....................37 9.4.1 Motor auxiliary connection [X6B]................37 9.4.2 Inputs, outputs, ready contact at [X1A]..............38 9.4.3 Inputs and outputs to the axis [X1C]..............42 Festo — CMMT-AS-...-S1 — 2018-02...

  • Page 5: About This Document

    • Observe safety instructions in the documentation è textvar object does not exist.  All available documents for the product è www.festo.com/pk. Product version This documentation refers to the following version of the device: –...

  • Page 6: Intended Use

    EN 60204-1. Motors approved or specified by Festo for the CMMT-AS fulfil the requirements. The motor cables and brake lines must fulfil the requirements of EN 61800-5-2 appendix D.3.1 and of EN 60204-1. Motor cables and brake lines approved by Festo for the CMMT-AS fulfil the requirements. Foreseeable misuse Foreseeable misuse, general –...

  • Page 7: Training Of Skilled Personnel

    è 9.1 Technical data, safety equipment. Observe that compliance with the named standards is limited to the CMMT-AS-...-S1. Service Contact your regional Festo contact person if you have technical questions è www.festo.com. Product overview Safety functions 4.1.1...
  • Page 8 Examples: • Rotating motor, synchronous machine, 8-pin è Movement < 45° at the motor shaft • Linear motor, pole pitch 20 mm è Movement < 20 mm at the moving part Functional principle STO Fig. 2 Functional principle STO Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 9 Low level Tab. 2 Level STA If protective functions are triggered in both channels (STO-A and STO-B), e.g. with excessive voltage at STO-A and STO-B, the internal protective functions switch off and STA likewise delivers high level. Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 10 2-channel input for STO request #STO-HS/#STO-LS Internal triggering, PWM driver high side/low side Max. length, low test impulses at #STO-A/B STO,TP Max. delay until STO switches off (≤ permissible reaction time when a safety STO,In function is requested Festo — CMMT-AS-...-S1 — 2018-02...

  • Page 11: Safety Function Sbc

    Check whether the SS1 safety function is better suited. SBC may only be used for holding brakes or clamping units which engage in the de-energised state. Ensure the lines are installed in a protected manner. Functional principle SBC Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 12 At the same time, test impulses occurring at SBC-A and SBC-B are not filtered. The diagnostic output SBA therefore supplies high level for the duration of these low test impulses. Check of the SBC safety function Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 13 Recommendation: evaluation with every actuation. • Check SBA feedback at every request. #SBC-A (BR+) #SBC-B (BR-Ext) Low level Low level High level High level High level Low level Tab. 5 Evaluation of SBC level Timing SBC Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 14 #SBC-A/#SBC-B 2-channel input for SBC request Max. length, low test impulses at #SBC-A/B SBC,TP Max. delay until the related brake output is switched off (≤ permissible reac- SBC,In tion time when a safety function is requested Festo — CMMT-AS-...-S1 — 2018-02...

  • Page 15: Safety Function Ss1

    The safety function SS1 is used when, in the application, the motor must be braked and then the energy supply to the motor safely switched off, and there are no further requirements for a targeted standstill of the drive (controlled stop, stop category 1 according to EN 60204-1). Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 16 3. Request for safety function STO and – if required – additionally SBC upon elapse of the delay time. The figure below shows the necessary logic circuit for the safety relay unit: Logic in the safety relay unit for SS1 Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 17 Fig. 9 Logic in the safety relay unit for SS1 The delay times are directly included in the reaction time of the system. Feedback of SS1 The STA signal can be used as feedback for the safety function SS1. Timing of SS1 Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 18 2-channel input for SBC request Feedback, STO active Feedback, SBC active Braking ramp takes place, speed = 0 (functional) Brake closed, and output stage switched off (functional) Rotational speed Tab. 7 Legend for SS1 timing SBC request Festo — CMMT-AS-...-S1 — 2018-02...

  • Page 19: Cross Wiring Of Several Servo Drives

    At this point, the diagnostic outputs deviate from the closed current principle. Cyclical automatic test- ing of the diagnostic output by the safety relay unit is therefore highly recommended è STO feedback through STA diagnostic contact and è SBC feedback through SBA diagnostic contact. Festo — CMMT-AS-...-S1 — 2018-02...

  • Page 20: Error Exclusion

    The interfaces of the PDS(SR) (Power Drive System, safety related) to the outside world are: – Power supply – Inputs and diagnostic check-back signals – Movement of the shaft – Output for controlling a second brake Interfaces of the PDS Festo — CMMT-AS-...-S1 — 2018-02...

  • Page 21: Installation

    During installation of safety-relevant inputs and outputs, also observe the following: – Fulfil all named requirements, e.g.: – surrounding area (EMC) – logic and load voltage supply – counterplug – connecting cables – Cross wiring – For additional information è textvar object does not exist. Festo — CMMT-AS-...-S1 — 2018-02...

  • Page 22: Installation Sto

    Inputs and outputs for the STO safety functions The 2-channel request of the safety function is made over the digital inputs #STO-A and #STO-B. The STA diagnostic output displays whether the safe status has been reached for the STO safety functions. Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 23 [X1A] to the servo drive. This safety request results in the 2-channel switch-off of the driver supply of the power output stage of the servo drive. Through the STA diagnostic output, the safety relay unit can monitor whether the safe status has been reached for the STO safety functions. Festo — CMMT-AS-...-S1 — 2018-02...

  • Page 24: Sbc Installation

    Holding brake (negative potential) Tab. 9 Inputs and outputs for the SBC safety function SBC connection example The SBC safety function (safe brake control) is triggered by an input device that makes the safety request. Festo — CMMT-AS-...-S1 — 2018-02...

  • Page 25: Ss1 Installation

    Inputs and outputs for the SS1 safety functions The SS1 safety function is wired like the STO safety function, supplemented by the functional input CTRL-EN for activation of the braking ramp through the safety relay unit. SS1 connection example Festo — CMMT-AS-...-S1 — 2018-02...

  • Page 26: Installation For Operation Without Safety Function

    X1A.9 #SBC-B Supply each with 24 V X1A.10 #SBC-A X1A.11 #STO-B X1A.12 #STO-A X1A.21 DOUT Do not connect X1A.22 Tab. 10 Wiring of the inputs and outputs without safety function Commissioning Safety Use of safety functions Festo — CMMT-AS-...-S1 — 2018-02...

  • Page 27: Check Lists

    Have the users been given sufficient information and warning regard- Yes    ing the residual risks? No  Can it be guaranteed that the operators’ working conditions have not Yes    been made worse due to the protective measures put in place? No  Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 28 This means that, when the emergency stop button is pressed No  and the enable signals are active, no movement occurs in response to a start command until acknowledgement has taken place by pressing the input “Restart”. Festo — CMMT-AS-...-S1 — 2018-02...

  • Page 29: Operation

    Internal device errors that lead to impulse monitoring not being switched off or only switched off one-channel – Errors in the brake outputs or the external wiring that result in voltage on the brake output des- pite requested safety function Festo — CMMT-AS-...-S1 — 2018-02...

  • Page 30: Repair

    1. If there is an internal defect: Always replace the product. 2. Send the defective product unchanged, together with a description of the error and application, back to Festo. 3. Check with your regional Festo contact person to clarify the conditions for the return shipment. Festo — CMMT-AS-...-S1 — 2018-02...

  • Page 31: Technical Data

    SIL CL 3 SIL CL 3 SIL CL 2 for a partial system in accordance with EN 62061 Category in accordance Cat. 4 Cat. 4 Cat. 3 with EN ISO 13849-1 Performance level in PL e PL e PL d accordance with EN ISO 13849-1 Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 32 EN 61508 1) Check of the STO safety function and monitoring of the STA diagnostic output by the safety controller at least 1 x within 24 h. Tab. 15 Safety reference data of the STO safety function Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 33 Mean time to danger- 1400 ous failure in accord- ance with EN ISO 13849-1, MTTF Average diagnostic – coverage in accordance with EN ISO 13849-1, Operating life in accordance with EN ISO 13849-1, T Safe failure fraction SFF in accordance with EN 61508 Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 34 Time monitoring must be planned in the safety controller. The technical data for the SS1 safety function must be calculated individually according to the applica- tion. Use the specified safety reference data for STO and SBC for the calculation. Festo — CMMT-AS-...-S1 — 2018-02...

  • Page 35: Technical Data Product Conformity And Approvals

    Vibration test and free fall in packaging in accordance with EN 61800-2 Tab. 19 Ambient conditions, transport Ambient conditions, storage Storage temperature [°C] −25   +55 … Relative humidity 5   95 (non-condensing) … Permissible altitude 3000 (above sea level) Tab. 20 Ambient conditions, storage Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 36 IEC 61800-5-1, Chap.3.5 Protection class Overvoltage category Degree of contamina- tion Vibration resistance in IEC 61800-5-1 and EN 61800-2 accordance with Shock resistance in EN 61800-2 accordance with Tab. 21 Ambient conditions for operation Festo — CMMT-AS-...-S1 — 2018-02...

  • Page 37: Technical Data, Electrical

    Output SBA – Error message on device 1) Brake output also shuts down in the event of a fault if there is an overvoltage on the logic supply. Tab. 23 Output of holding brake [X6B] Festo — CMMT-AS-...-S1 — 2018-02...

  • Page 38: Inputs, Outputs, Ready Contact At [X1A]

    1) Brake output also shuts down in the event of a fault if there is an overvoltage on the logic supply. Tab. 24 Output of holding brake [X6B] 9.4.2 Inputs, outputs, ready contact at [X1A] Operating ranges of digital inputs drawing current Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 39 Max. input voltage low- level (U L max Min. input voltage low- – level (U L min Max. input current with [mA] high-level (I H max Min. input current with [mA] high-level (I H min Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 40 Based on type 3 to EN 61131-2 Nominal voltage [V DC] Permissible voltage [V DC] 3   30 – … range Max. input voltage high-level (U H max Min. input voltage high-level (U H min Max. input voltage low- level (U L max Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 41 1) High test pulses must not occur simultaneously at inputs #SBC-A and #SBC-B but only with a time offset. Tab. 26 Control inputs #SBC-A and #SBC-B at [X1A] Diagnostic outputs STA and SBA at [X1A] Design Asymmetrical push-pull output Voltage range [V DC] 18   30 … Permissible output cur- [mA] rent for high-level Festo — CMMT-AS-...-S1 — 2018-02...

  • Page 42: Inputs And Outputs To The Axis [X1C]

    Permissible output cur- [mA] rent for high-level Voltage loss at high-  3 < level Pull-down resistance  50 Ω < Protective function – Short-circuit proof – Feedback-proof – Overvoltage-resistant up to 60 V – Thermal overload protection Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 43 The test pulses for control input #SBC-B are mapped to the out- put. Min. time between test [ms] pulses Loads Ohmic load (min.) Ω Inductive load [mH]  100 < Capacitive load [nF]  10 < Tab. 28 Output BR-EXT Festo — CMMT-AS-...-S1 — 2018-02...
  • Page 44 Copyright: Festo AG & Co. KG Ruiter Straße 82 73734 Esslingen Germany Phone: +49 711 347-0 Fax: +49 711 347-2144 Reproduction, distribution or sale of this document or communic- e-mail: ation of its contents to others without express authorization is service_international@festo.com...

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