Festo CMMT-ST-C8-1C-...-S0 Series User manual

8097118
CMMT-ST-C8-1C-...-S0
Servo drive
8097118
2019-01
[8097120]
Description|
Assembly, Installation

Translation of the original instructions
AKULON®, BISS®, CiA®, EtherCAT®, EtherNet/IP®, PI PROFIBUS PROFINET®, PHOENIX CONTACT® are
registered trademarks of the respective trademark owners in certain countries.
2 Festo — CMMT-ST-C8-1C-...-S0 — 2019-01

3Festo — CMMT-ST-C8-1C-...-S0 — 2019-01
1 About this document................................................................................................... 5
1.1 Target group................................................................................................................. 5
1.2 Applicable documents.................................................................................................. 5
1.3 Product variants........................................................................................................... 5
1.4 Product labelling.......................................................................................................... 6
1.5 Specified standards...................................................................................................... 7
2 Safety........................................................................................................................... 8
2.1 Safety instructions........................................................................................................ 8
2.2 Intended use................................................................................................................ 8
2.2.1 Range of application............................................................................................... 9
2.2.2 Permissible components.........................................................................................9
2.3 Training of qualified personnel..................................................................................... 9
2.4 Approvals and certifications......................................................................................... 9
3 Additional information................................................................................................ 10
4 Service..........................................................................................................................10
5 Product overview......................................................................................................... 10
5.1 Scope of delivery.......................................................................................................... 10
5.2 System structure.......................................................................................................... 11
5.2.1 Product design........................................................................................................11
5.2.2 Overview of connection technology........................................................................ 15
6 Transport and storage................................................................................................. 16
7 Assembly..................................................................................................................... 17
7.1 Mounting clearances.................................................................................................... 17
7.2 Installation................................................................................................................... 19
8 Installation.................................................................................................................. 21
8.1 Safety............................................................................................................................ 21
8.2 EMC-compliant installation........................................................................................... 21
8.3 Connection example..................................................................................................... 23
8.4 Interfaces..................................................................................................................... 24
8.4.1 [X1A], inputs and outputs for the higher-order PLC................................................. 24
8.4.2 [X1C], reference switch/limit switch........................................................................28
8.4.3 [X2], encoder interface............................................................................................29
8.4.4 [X18], standard Ethernet......................................................................................... 31
8.4.5 [XF1 IN] and [XF2 OUT], real-time Ethernet (RTE) port 1 and 2................................. 32
8.5 Motor connection......................................................................................................... 34
8.6 Load and logic power supply........................................................................................ 36
8.7 Cross-wiring of several servo drives............................................................................. 37
9 Malfunctions............................................................................................................... 38
9.1 Diagnostics via LEDs..................................................................................................... 38
9.1.1 Device status displays............................................................................................ 39
Table of contents

9.1.2 Interface status [X18]............................................................................................. 42
9.1.3 Device and interface status, EtherCAT................................................................... 43
9.1.4 Device and interface status, ProfiNet..................................................................... 44
9.1.5 Device and interface status, EtherNet/IP............................................................... 45
10 Disassembly.................................................................................................................47
11 Technical data.............................................................................................................. 48
11.1 Technical data, product conformity and approvals........................................................ 48
11.2 Technical data, general..................................................................................................49
11.3 Technical data, electrical............................................................................................... 51
11.3.1 Load and logic power supply [X9]........................................................................... 51
11.3.2 Power specifications, motor connection [X6].......................................................... 52
11.3.3 Encoder interfaces [X2].......................................................................................... 53
11.3.4 Digital inputs and outputs [X1A]............................................................................ 54
11.3.5 Reference switch [X1C]........................................................................................... 57
11.3.6 Standard Ethernet [X18], parameterisation interface.............................................. 58
11.3.7 Real-time Ethernet [XF1 IN], [XF2 OUT]................................................................... 58
11.4 Characteristic curves..................................................................................................... 59
4 Festo — CMMT-ST-C8-1C-...-S0 — 2019-01

5Festo — CMMT-ST-C8-1C-...-S0 — 2019-01
1 About this document
1.1 Target group
The document is targeted towards individuals who perform assembly, installation and service work on
the product.
1.2 Applicable documents
All available documents for the product èwww.festo.com/pk.
The user documentation for the product also includes the following documents:
Designation Contents
Product instruction manual Installation, safety sub-function
Detailed description of assembly, installationProduct descriptions
Detailed description of safety sub-function
Description/online help plug-in Plug-in:
– Functions and operation of the software
– Initial commissioning assistant
Firmware functions:
– Configuration and parameterisation
– Operating modes and operational functions
– Diagnostics and optimisation
Bus protocol/control:
– Device profile
– Controller and parameterisation
Festo Automation Suite online
help
– Function of the Festo Automation Suite
– Management and integration of device-specific plug-ins
Tab. 1 User documentation for the product
1.3 Product variants
The product is available in 3 fieldbus variants. The following order code indicates the equipment fea-
tures of the product variant.
Feature Order code Type
Servo drive CMMT- Servo drive, seriesT
Motor type ST- Stepper motor or EC motor
Nominal current C8- 8A
Nominal input voltage 1C- 24…48VDC
About this document

Feature Order code Type
EC- EtherCAT
EP- EtherNet/IP
Bus protocol/activation
PN- PROFINET
Safety function S0 Basic safety
Tab. 2 Product variants CMMT-ST-... (e.g.CMMT-ST-C8-1C-EC-S0)
This documentation refers to the following version:
– Servo drive CMMT-ST-...-S0, revision1 and higher, see product labelling.
This is the first available revision.
• For later revisions of the product, check whether updated documentation is available
èwww.festo.com/pk.
1.4 Product labelling
• Observe the specifications on the product.
The product labelling is located on the right side of the device. The product labelling enables identific-
ation of the product and shows the following information:
Product labelling (example) Meaning
CMMT-ST-C8-1C-EC-S0 Order code
8084005 MM-YYYY:XX  Rev01 Part number, serial number (manufacturing
month, manufacturing year, plant number), revi-
sion
Main Input: 24…48VDC8A Technical data for the power supply (PELV fixed
power supply)
Motor Out: 0…Input VAC8ARMS 300W Technical data for the motor output (output
voltage, nominal current, nominal output power)
TAMB: max. 50°C Ambient temperature (TAMB)
IP20 Degree of protection
MAC-ID: XF1 IN XX-XX-XX-XX-XX-XX First MAC address of the device for RTE commu-
nication XF1IN, also represented as a barcode
R-R-FTO-KC-2018-1092 KC mark certificate (test mark for Korea)
01/205/5696.00/19 TÜV certificate number
Data matrix code, 123456789AB Product key as a data matrix code and an
11-character alphanumeric code
Festo AG&Co.KG Manufacturer
DE-73734 Esslingen Manufacturer’s address
About this document
6 Festo — CMMT-ST-C8-1C-...-S0 — 2019-01

Product labelling (example) Meaning
Made in Germany Manufactured in Germany
Tab. 3 Product labelling (example)
Warning symbol on the front of the product
The following warning symbol can be seen on the front of the product:
1Attention! Hot surface
Fig. 1 Warning symbol on the front of the product (example CMMT-ST-…EC)
General meaning Meaning for the CMMT-ST
Attention! Hot surface Metallic housing parts of the device can reach high temperatures
during operation.
Tab. 4 Meaning of the warning symbol
1.5 Specified standards
Version
EN60204-1:2018-09 EN61800-3:2004+A1:2012
EN61131-2:2007 EN61800-5-2:2017
Tab. 5 Standards specified in the document
About this document
7Festo — CMMT-ST-C8-1C-...-S0 — 2019-01

2 Safety
2.1 Safety instructions
General safety instructions
– Assembly and installation should only be carried out by qualified personnel.
– Only use the product if it is in perfect technical condition.
– Only use the product in original status without unauthorised modifications.
– Do not carry out repairs on the product. If defective, replace the product immediately.
– Observe labelling on the product.
– Take into consideration the ambient conditions at the location of use.
The safety function might fail, and malfunctions might occur if you do not comply with the para-
meters required for the ambient and connection conditions.
– Never remove or insert a plug when the power is switched on.
– Install the product in a suitable control cabinet. The minimum degree of protection required for
the control cabinet is IP54.
– Prior to commissioning, ensure that the resulting movements of the connected actuators cannot
endanger anyone.
– During commissioning: systematically check all control functions and the communication and sig-
nal interface between controller and drive regulator.
– Keep the documentation somewhere safe throughout the entire product lifecycle.
In the event of damage caused by unauthorised manipulation or any form of use other than that inten-
ded, the warranty is invalidated, and the manufacturer is not liable for damages.
In the event of damage caused by using unauthorised software or firmware with the device, the war-
ranty is invalidated, and the manufacturer is not liable for damages.
Safety instructions for the safety sub-functions of the product èDescription Safety sub-function.
2.2 Intended use
The servo drive CMMT-ST is intended to supply a stepper motor or an EC motor with power, as well as
to regulate them. The integrated electronics permit regulation of torque (current), rotational speed
and position.
Use exclusively:
– In perfect technical condition
– In its original condition, without unauthorised modifications
– Within the limits of the product defined by the technical data è 11 Technical data
– In an industrial environment
Intended use of the safety sub-functions for the product èDescription Safety sub-function.
Safety
8 Festo — CMMT-ST-C8-1C-...-S0 — 2019-01

2.2.1 Range of application
The device is intended for use in an industrial environment. Outside of industrial environments, meas-
ures may need to be implemented for radio interference suppression, e.g.in commercial and residen-
tial/mixed-used areas.
The device is intended to be installed in a control cabinet. The minimum degree of protection required
for the control cabinet is IP54.
2.2.2 Permissible components
Supported motors:
– Stepper motors
– EC motors
The servo drive supports motors with or without an integrated holding brake (electrical spring-oper-
ated brake). The holding brake is actuated automatically by the controller enable of the servo drive.
The actuation concept is based on the assumption that a drive that is already stationary is being held.
The actuation system is not designed for decelerating a moving drive. If a moving drive is decelerated,
this can cause excessive wear on the brake.
Motor configuration Behaviour following removal of controller enable
Motor without holding brake The drive can move freely.
Motor with holding brake The holding brake is applied and holds the motor and axis in posi-
tion.
Tab. 6 Example: removal of controller enable
The holding brake must be designed for the load torque to be stopped. Detailed information about
brake control èOnline help for the CMMT-ST plug-in.
Supported encoders:
– BiSS-C encoders
– Incremental encoders
Additional information èwww.festo.com/catalogue.
2.3 Training of qualified personnel
The product may be installed and commissioned only by a qualified electrical engineer who is familiar
with:
– The installation, operation and maintenance of electrical control systems
– The applicable regulations for operating safety-related systems
Work on safety-related systems may only be carried out by qualified personnel trained in safety engin-
eering.
2.4 Approvals and certifications
The product has the CE marking. For details of directives, see
è 11.1 Technical data, product conformity and approvals.
The product-related EU directives and standards are listed in the declaration of conformity
èwww.festo.com/sp.
Safety
9Festo — CMMT-ST-C8-1C-...-S0 — 2019-01

The product is a safety device in accordance with the Machinery Directive. For details of the safety-ori-
ented standards and test values that the product complies with and fulfils, see èDescription Safety
sub-function, Technical data, safety engineering. Please note that compliance with the named stand-
ards is limited to the CMMT-ST-...-S0.
Certain configurations of the product have been certified by Underwriters Laboratories Inc. (UL) for the
USA and Canada.
These configurations bear the following mark:
Fig. 2
cUL Listed Mark for Canada and the United States.
During installation and operation of this product, comply with all safety requirements, statutes, codes,
rules and standards relevant for the product, such as the National Electrical Code (USA), Canadian
Electrical Code (Canada) and regulations of the US federal agency OSHA. When selecting the circuit
breaker, comply with the maximum permissible electrical protection for UL.
3 Additional information
– Accessories èwww.festo.com/catalogue.
– Spare parts èwww.festo.com/spareparts.
– All available documents for the product and current versions of the firmware and commissioning
software èwww.festo.com/sp.
4 Service
Contact your regional Festo contact person if you have technical questions èwww.festo.com.
5 Product overview
5.1 Scope of delivery
Component Number
Servo drive CMMT-ST-... 1
Assortment of plugs NEKM-C-22 1
H-rail clamp (premounted) 1
Instruction manual CMMT-ST-... 1
Tab. 7 Scope of delivery
Below are some examples ofthe available accessories:
– Patch cable for linkage of the RTE interface
Additional information
10 Festo — CMMT-ST-C8-1C-...-S0 — 2019-01

Up-to-date information on the accessories èwww.festo.com/catalogue.
5.2 System structure
The servo drive CMMT-ST is a 1-axis servo drive for controlling a stepper motor or an EC motor with
connected mechanisms, e.g.an axis from Festo. The device is controlled by a higher-level controller
using the bus protocol EtherCAT, EtherNet/IP or PROFINET, depending on the product version, via a
real time Ethernet interface.
The device can be parameterised via a PC using either the real-time Ethernet interface or the separate
standard Ethernet interface.
The device is an extra-low-voltage controller. The load and logic power supply must be provided by a
PELV fixed power supply.
1Servo drive CMMT-ST
2Stepper motor or EC motor with drive
3Fixed power supply (or supplies) for logic
and load voltage (PELV)
4PC with Ethernet connection for paramet-
erisation
5Bus/network
Fig. 3 System structure (example)
Product overview
11Festo — CMMT-ST-C8-1C-...-S0 — 2019-01

5.2.1 Product design
The device has a compact design. The connections are on the front, top and bottom of the device as
pin header, socket strip or RJ45 bushing.
The ventilation slots on the bottom, top and left side of the device ensure sufficient air flow for cooling
the device.
The metal housing parts forms the cooling elements. Heat is also dissipated to the surroundings via
the cooling elements. The device does not have a fan.
1Top
2Front side
3Bottom
4Cooling element (metal housing parts, top,
bottom left side and back of housing)
5Ventilation slots
Fig. 4 Servo drive CMMT-ST
Product overview
12 Festo — CMMT-ST-C8-1C-...-S0 — 2019-01

1top hole for wall mounting
2Retaining screw for t-rail clamp
3T-rail clamp
4Bottom slot for wall mounting
5Hood (right side of housing)
Fig. 5 Elements on the back
There is a hole at the top and a slot for wall mounting at the bottom of the back. The t-rail clamp is
mounted in the centre of the back.
Product overview
13Festo — CMMT-ST-C8-1C-...-S0 — 2019-01

1Ventilation slots 2Bottom of the CMMT-ST
Fig. 6 Bottom
Product overview
14 Festo — CMMT-ST-C8-1C-...-S0 — 2019-01

5.2.2 Overview of connection technology
1Functional earth marking
2Functional earth connection
3[XF2 OUT] RTE interface port 2
4[XF1 IN] RTE interface port 1
5[X18] Standard Ethernet
6[X1A] I/O interface
7[X2] Encoder connection
8[X6] Motor connection
9[X1C] Connection for the reference switch or
limit switch
10 [X9] Load and logic voltage (underneath)
Fig. 7 Connections of the CMMT-ST (example CMMT-ST-C8-1C-EC)
Product overview
15Festo — CMMT-ST-C8-1C-...-S0 — 2019-01

6 Transport and storage
– Protect the product during transport and storage from excessive stress factors. Excessive stress
factorsinclude:
– Mechanical stresses
– Impermissible temperatures
– Moisture
– Aggressive atmospheres
– Store and transport the product in its original packaging or installed in the control cabinet. The
original packaging offers sufficient protection from typical stresses.
Transport and storage
16 Festo — CMMT-ST-C8-1C-...-S0 — 2019-01

7 Assembly
Dimensions
Fig. 8 Dimensions [mm]
7.1 Mounting clearances
The servo drives of the series CMMT-ST can be arrayed next to each other.
For effective output currents > 4.5A, mounting clearances may be required on both sides so that the
heat generated during operation can be removed by allowing sufficient air to flow.
Detailed information about the required mounting clearances and any power reduction that may be
necessary as a function of the ambient temperature è Fig.16
Assembly
17Festo — CMMT-ST-C8-1C-...-S0 — 2019-01

The table below shows the mounting clearances for standard output currents and ambient temperat-
ures.
Ambient operating temperatureExamples
30°C 40°C 50°C
Continuous, constant
output current in con-
trolled operation [A]
Mounting clearances
4 0mm
5 3mm
6
0mm
10mm
7 3mm
8
0mm
15mm
Impermissible
Tab. 8 Required mounting clearances (examples)
In order for the device to reach its specified service life, the maximum housing interior temperature
must be restricted. The specified power reduction serves to restrict the housing interior temperature.
The necessary clearances are determined by the temperature in the control cabinet and the required
effective current. The PositioningDrives software from Festo can help to calculate the effective current.
If the clearances are set too low, the device will be switched off by the I²t or temperature monitoring
function of the output stage. The maximum device current can be parameterised in the plug-in irre-
spective of the nominal current of the connected motor èdescription of or online help for the CMMT-
ST plug-in.
In the cases below, the required effective current that will cause the device to heat up is lower than
the nominal current of the device:
– In closed-loop operation
– In open-loop operation, if the device is running in intermittent duty
Assembly
18 Festo — CMMT-ST-C8-1C-...-S0 — 2019-01

Fig. 9 Effective current timing graph (example)
Name Description
Ieff Effective current
Iset Set current
IHHolding current
positioning motion Traversing movement
example open-loop operation Example of open-loop operation
example closed-loop operation Example of closed-loop operation
Tab. 9 Legend for effective current timing graph
7.2 Installation
The servo drive is intended to be installed in a control cabinet with at least IP54 degree of protection.
The servo drive can be screwed onto the backwall of the control cabinet or mounted on an H-rail.
Assembly instructions
– Always install the device vertically in the control cabinet (mains supply line [X9] underneath).
Assembly
19Festo — CMMT-ST-C8-1C-...-S0 — 2019-01

– Maintain minimum distances and mounting clearance to guarantee sufficient air flow. The ambient
air in the control cabinet must be able to flow through the device from bottom to top without
hindrance. Detailed information about the required mounting clearances and any power reduction
that may be necessary as a function of the ambient temperature è Fig.16.
– Take into account the required clearance for the wiring (connecting cables of the device must be
routed from above, from below and from the front).
– Do not mount any temperature-sensitive components near the device. The device can become
very hot during operation (switch-off temperature of the temperature monitoring
functionèTechnical data).
– When mounting on an H-rail: use a DIN mounting rail TH35-7.5 or TH35-15 in accordance with
EN60715.
– When mounting on the backwall of the control cabinet: screw the device on vertically and flat to
the mounting surface.
Mounting the H-rail clamp
• If the H-rail clamp is not premounted, screw it on using the original screw on the back è Fig.5.
Mounting on an H-rail
1. Attach the device by hooking the top of the H-rail clamp onto the H-rail from above.
2. Press the lower part of the device onto the H-rail until the H-rail clamp clicks into place on the H-
rail.
Fig. 10 Mounting on an H-rail
Assembly
20 Festo — CMMT-ST-C8-1C-...-S0 — 2019-01