The easy family, consisting of the easyRelay (control relays), easyHMI (HMI systems) and easyControl (compact PLCs), covers a large number of applications in the standard controller environment. easySafety is Moeller's latest addition to the family and provides a solution for safety-related tasks.
The manufacturer says that the safety-related control relay complies with Category 4 in accordance with EN 954-1, PL e in accordance with EN ISO 13849-1, SILCL 3 in accordance with EN IEC 62061 as well as SIL 3 in accordance with EN IEC 61508.
The devices of the easySafety series come factory shipped with a variety of conventional safety relays in the form of safety function blocks such as: Emergency-stop, guard door monitoring optionally with the monitoring of guard locking, light curtain with and without muting, two-hand control button, safety switch mat, enable switch, safety foot switch, operating mode selector switch, zero and over-speed monitoring, safety timing relay and safety markers.
The safety function blocks of easySafety can either be configured from a PC or directly on the device. The easySoft-Safety PC software offers users a convenient configuration environment which enables the safety configuration to be created, simulated in the conventional easy circuit diagram language and transferred to the device. A beginners' course provided in the online help of the programming software makes it easy for beginners to learn the use of easySafety and the easySoft-Safety PC software.
If users do not wish to utilise software or transfer cables, devices of the easySafety series with integrated display and keypad are also available allowing modifications or complete configurations to be carried out directly on the device.
A text display offers benefits where diagnostics messages are required. Diagnostic information from a blind easySafety device can be displayed using the remote MFD display unit in combination with a CP4 module.
In addition to the safety circuit diagram contained in the safety configuration, the safety control relay also processes a standard circuit diagram. This can be used for standard tasks such as the processing of diagnostics messages or general control tasks on a machine.
The safety and standard circuit diagrams of the easySafety are strictly separated. Both diagrams can be protected separately with up to three different password levels. This allows access by different groups of people so that they can view and/or edit unlocked circuit diagrams. If all access to the safety configuration is to be prevented, the person responsible simply locks the safety program and destroys the virtual key. This prevents the possibility of any subsequent modifications.
The easySafety devices offer 14 safety inputs and either have four relay outputs or one redundant output plus four transistor outputs. All outputs on the device are designed as safety outputs. Inputs can be read by the safety and the standard circuit diagrams and outputs can be write accessed by either one.
If users require other standard inputs and outputs for their standard application, they can use the expansions of the easyRelay series. An easySafety device can also be networked via the integrated easyNet with up to seven other devices from the easy family. Standard information can thus be exchanged simply and cost-efficiently between the individual devices. Connection to a PLC can be effected using Profibus-DP, CANopen or DeviceNet.
For more information contact Michelle Nolte, CBI-electric, +27 (0)11 928 2000, [email protected]
| Tel: | +27 11 928 2000 |
| Email: | [email protected] |
| www: | www.cbi-lowvoltage.com |
| Articles: | More information and articles about CBI-electric: low voltage |
© Technews Publishing (Pty) Ltd | All Rights Reserved
printer friendly version