Safety
This section helps you to recognize and avoid dangers to people and objects.
You should pay attention to this
Read the documentation!
Read the available documentation for servo amplifier and servo motor before installation and commissioning. Improper handling of the devices can cause harm to people or damage to property. The operator of systems using the must require that all personnel who work with the drive read and understand the manual before using the devices.
Perform a risk assessment!
The manufacturer of the machine must generate a risk assessment for the machine, and take appropriate measures to ensure that unforeseen movements cannot cause injury or damage to any person or property. Additional requirements on specialist staff may also result from the risk assessment.
Specialist staff required!
Only properly qualified personnel are permitted to perform such tasks as transport, installation and setup. Qualified specialist staff are persons with expertise in transport, installation, assembly, commissioning and operation of electrotechnical equipment.
- Transport, storage, unpacking: only by personnel with knowledge of handling electrostatically sensitive components.
- Mechanical installation: only by qualified personnel with mechanical expertise.
- Electrical installation: only by qualified personnel with electrotechnical expertise.
- Setup: only by qualified personnel with expertise in electrical engineering and drive technology.
The qualified personnel must know and observe ISO 12100 / IEC 60364 / IEC 60664 and national accident prevention regulations.
Check Hardware Revision!
Check the Hardware Revision Number of the product (see product label). This number is the link between your product and the manual, it must match the Hardware Revision Number on the cover page of the manual.
Pay attention to the technical data!
Adhere to the technical data and the specifications on connection conditions (rating plate and documentation). If permissible voltage values or current values are exceeded, the devices can be damaged. Unsuitable motor or wrong wiring will damage the system components. Check the combination of drive and motor.
Observe electrostatically sensitive components!
The servo amplifier contain electrostatically sensitive components which may be damaged by incorrect handling. Electrostatically discharge your body before touching the device. Avoid contact with highly insulating materials (artificial fabrics, plastic film etc.). Place the servo amplifier on a conductive surface.
Automatic restart
The drive might restart automatically after power on, voltage dip or interruption of the supply voltage, depending on the parameter setting. Risk of death or serious injury for humans working in the machine.
If the parameter AENA is set to 1, then place a warning sign to the machine (Warning: Automatic Restart at Power On) and ensure, that power on is not possible, while humans are in a dangerous zone of the machine. In case of using an undervoltage protection device, you must observe EN 60204-1:2006 chapter 7.5.
Hot surface!
The surfaces of the servo amplifiers can be hot in operation. Risk of minor burns!
The surface temperature can exceed 80°C. Measure the temperature, and wait until the motor has cooled down below 40°C before touching it.
Earthing!
It is vital that you ensure that the devices are safely earthed to the PE (protective earth) busbar in the switch cabinet. Without low-resistance earthing no personal protection can be guaranteed and there is a risk of death from electric shock.
Leakage Current!
Since the leakage current to PE is more than 3.5 mA, in compliance with IEC61800-5-1 the PE connection must either be doubled or a connecting cable with a cross-section >10 mm² must be used. Deviating measures according to regional standards might be possible.
High voltages!
Ensure that the switching cabinet remains closed while the devices are in operation.
Do not remove any connectors during operation as this may cause electrical arcing, resulting in personal injury and damage to contacts. DC Bus link connections can carry dangerous voltage levels several minutes after the line voltage has been switched off (self-discharge time).
Wait at least seven minutes after disconnecting the servo amplifier from the main supply power before touching potentially live sections of the equipment (such as contacts) or removing any connections. Capacitors can have dangerous voltages present up to seven minutes after switching off the supply power. Always measure the voltage in the DC bus link and wait until the voltage is below 50 V before handling components.
Reinforced Insulation!
Thermal sensors, motor holding brakes and feedback systems built into the connected motor must have reinforced insulation (according to IEC61800-5-1) against system components with power voltage, according to the required application test voltage.
Check parameters before enabling the servo amplifier
Date saved on SD cards are not safe against unintended third-party changes. After loading a data set, you must always check the parameters before you enable the servo amplifier.
Never modify the servo amplifiers!
It is permissible to use the setup software to alter the settings of the servo amplifier. Any other alterations will invalidate the warranty. Opening the housing causes loss of warranty and all certificates become unvalid.
Warning signs are added to the device housing. If these signs are damaged, they must be replaced immediately.
Use as directed
Servo amplifiers are safety components that are built into electrical plant or machines, and can only be operated as integral components of such plant or machines.
The manufacturer of the machine must generate a risk assessment for the machine, and take appropriate measures to ensure that unforeseen movements cannot cause injury or damage to any person or property.
If the servo amplifiers are used in residential areas, in business and commercial areas, or in small industrial operations, then additional filter measures must be implemented by the user.
Cabinet and Wiring
The servo amplifiers must only be operated in a closed control cabinet, taking into account the ambient conditions defined in the instructions manual. Ventilation or cooling may be necessary to keep the temperature within the cabinet below 40°C.
Use only copper conductors for wiring. The conductor cross-sections can be derived from the standard IEC 60204 (alternatively for AWG cross-sections: NEC Table 310-16, 60°C or 75°C column).
Power supply
Syxx0 : Servo amplifiers in the S3xx0/S7xx0 series (overvoltage category III acc. to EN 61800-5-1) can be supplied from 1-phase or 3-phase grounded (earthed) industrial supply networks (TN-system, TT-system with grounded neutral point, no more than 42kA symmetrical rated current at 110V-10% to 230V+10%).
Syxx6 : Servo amplifiers in the S3xx6/S7xx6 series (overvoltage category III acc. to EN 61800-5-1) can be supplied from 3-phase grounded (earthed) industrial supply networks (TN-system, TT-system with grounded neutral point, no more than 42kA symmetrical rated current at 208V-10%, 230V, 240V, 400V or 480V+10%).
Periodic overvoltage between phases (L1, L2, L3) and the housing of the servo amplifier must not exceed 1000V crest.
In accordance with IEC 61800, voltage spikes (< 50µs) between phases must not exceed 1000V. Voltage spikes (< 50µs) between a phase and the housing must not exceed 2000V.
Motors
The servo amplifiers are exclusively intended for driving suitable brush less synchronous servomotors, asynchronous motors and DC motors with control of torque, speed and/or position.
The rated voltage of the motors must be at least as high as the DC bus link voltage divided by √2 produced by the servo amplifier (UnMotor ≥ UDC/ √2).
Safety
The STO function is exclusively intended to provide functional safety, by preventing the restart of a system. To achieve this functional safety, the wiring of the safety circuits must meet the safety requirements of IEC 60204, ISO 12100, IEC 62061 respectively ISO 13849-1.
In case of single channel control: if STO is automatically activated by a control system, then make sure that the output of the control is monitored for possible malfunction.
To achieve PL e or SIL CL3, the safe switching of the pulse inhibitor must be tested periodically by analyzing the feedback signal from the safety control.
Observe the user documentation for safety cards S3 / S4 when you use a safety expansion card.
Prohibited use
Other use than described in chapter Use as Directed is not intended and can lead to damage of persons, equipment or things.
The use of the servo amplifier in the following environments is prohibited:
- potentially explosive areas
- environments with corrosive and/or electrically conductive acids, alkaline solutions, oils, vapors, dusts
- directly on non-grounded supply networks or on asymmetrically grounded supplies with a voltage
Commissioning the servo amplifier is prohibited if the machine in which it was installed,
- does not meet the requirements of the EC Machinery Directive
- does not comply with the EMC Directive or with the Low Voltage Directive
- does not comply with any national directives
The control of holding brakes by the servo amplifier alone may not be used in applications, where functional safety is to be ensured with the brake.
The STO function must not be used if the drive is to be made inactive for the following reasons :
- Cleaning, maintenance and repair operations, long inoperative periods: In such cases, the entire system should be disconnected from the supply by the personnel, and secured (main switch).
- Emergency-Off situations: the mains contactor must be switched off (by the emergency-Off button).
