WEG CS-D Installation Manual

Installation Guide
CS-D and CS-D201
Simultaneity Control - DC Converters Based on Digital Technique
1 SAFETY INSTRUCTIONS
DANGER!
The procedures recommended in this warning aim at protecting the user against death,
serious injuries and considerable material damages.
ATTENTION!
The procedures recommended in this warning aim at preventing material damages.
NOTE!
The information mentioned in this warning is important for the proper understanding and
good operation of the product.
DANGER!
Only qualified personnel, familiar with the CS-D and CS-D201 and related equipment, must
plan or perform the installation, operation and maintenance of this device. Such personnel must
follow the safety instructions described in this guide and/or defined by local regulations. Failure to
comply with the safety instructions may result in death risks and/or damages to the equipment.
DANGER!
The circuit has been designed so that faults will not cause a hazardous condition, ensuring
the trip of the relays by means of internal self-check and interlock.
NOTE!
This device must be only disconnected after it is powered down. To disassemble it, press
the device downwards and pull it upwards until it disconnects from the rail.
NOTE!
Transportation and disposal of this device must be done with the proper care. Disposal must
be done in compliance with the instructions and national legislations.
2 GENERAL INFORMATION
The CS-D simultaneity control is a safety relay with simultaneity developed to increase the safety level in the
drive of machines or processes. The device is designed for control with their own safety level.
Manufacturer:
WEG DRIVES & CONTROLS AUTOMAÇÃO LTDA
Av. Prefeito Waldemar Grubba, 3000
89256-900 - Jaraguá do Sul - SC - Brazil
www.weg.net
3 CONNECTIONS INSTRUCTIONS
ATTENTION!
The contacts must be correctly wired in order to prevent improper use and even ensure the
integrity of the contacts and device.
The device must be mounted on a DIN rail; in order to do so, place the back part of the enclosure on the
rail and push the device downwards until it snaps onto the rail.
For maximum safety in a process, the installed safety devices and the machine control must have the same
safety class, that is, the machine electric control should also provide dual-channel inputs its activation.
Check the manufacturer's catalog of relays, contactors or solenoid valves to make sure that the power,
voltage and current are compatible with the safety relay.
This device provides two inputs in a dual-channel system with anti-tampering protection. One input
supplies activation with a positive signal and the other, with a negative signal (they cannot be interlinked).
Due to the circuit operation, the inputs must be activated simultaneously; it is not possible to keep one
input activated and turn on the other.
The inputs must be wired with normally-open contacts, as described in this guide. These contacts can be
a Soft Switch, Palm Switch, Soft Touch or any mechanical pushbutton with two contacts.
4 START-UP AND SETTINGS
The simultaneity control can operate in two modes: pulse or continuous.
In the continuous mode, the output is enabled by the pushbuttons and remain in such condition as long as
the buttons remain actuated. In the pulse mode, the output is automatically enabled by the pushbuttons
and disabled according to the time set in the potentiometer (located on the relay front panel) or if one of
the pushbuttons is disabled before the end of the time set.
The system of the CS-D201 does not have the pulse mode, so it only operates in the continuous mode. The
CS-D and CS-D201 will enable their safety output when the two pushbuttons are actuated simultaneously
(maximum difference of 0.5 seconds between the activation of the pushbuttons).
If one or both pushbuttons are released, the safety relays will switch off immediately. For a new activation
(new cycle), the two pushbuttons must be deactivated and simultaneously actuated again. The safety
relays will not actuate when:
Only one input is enabled.
„
The simultaneity time is not reached.
„
The feedback circuit is open.
„
Pulse mode
It is a feature only available in the CS-D; it is an operating mode in which the outputs are turned off at the
end of a preset time, regardless of the buttons being activated. To enable this operating mode, terminals
P1 and P2 must be interlinked, and the output pulse time must be set on the relay front panel.
Feedback
Feedback is a feature available in the CS-D and CS-D201 to monitor safety contacts. They must be connected
to the NC contact or the NC contact series of the safety contactor(s) driven by the control. In case the safety
contactors fail, the feedback will remain open and consequently will not allow the simultaneity control to be
reactivated. The system will only return to operation when the feedback is closed again.
NOTE!
When the feedback is not used, inputs Y1 and Y2 must be interlinked.
The device must be tested before its full operation. Therefore, the correct mounting must be ensured, and
the integrity of both cables and connections and the device electrical function must be checked. Regular
inspections must be carried out in order to check the integrity of all parts described in this guide.
ATTENTION!
The device must be integrated into the regular check-ups, according to the industrial and
health safety directive, at least once a year.
English
Translated Version
13781608