All available signals shall be provided via etherhet/BUS communication to the PLC for remote control and monitoring. 

## 8.7.18 Control panels for local functions 

The cabinet shall be equipped with protection/general differential and thermal switches for power supply, sensors and each element liable to overvoltage. 

The contractor shall supply detailed electric schemes with the composition of the cabinet. 

Local functions can be designed as stand-alone units with possibility of local manual operation. 

Outdoor local control panels will have IP 65 protection and double cover and capped. First over will be UV film coated or will have filtered glass and there will be control buttons or switches over 2$^{nd}$ cover. It will be designed such that dust or liquid will not enter through 2$^{nd}$ cover. Emergency button will be present at right hand side over 1$^{st}$ cover. 

The panel shall automatically control the operation of the installations. "Auto-O-Manuel" selectors shall be available locally. 

There will be load disconnector (except motors with frequency converter) IP65 LED illuminated start/running (green) and stop/failure(red) integrate push buttons. 

The material of local control panel shall be preferred as hot dip galvanized material, stainless steel material at least AISI 304 quality or thermoplastic material. Supports of the panel shall be made as hot dip galvanized or stainless steel (heavy duty type). 

Monitoring of the motors running and faults shall be included in the control and monitoring system. 

## 8.7.18.1 Local Pad-lockable Stop Switch 

A local stop switch shall be installed adjacent to each machine (motor). The stop position shall be pad-lockable, and it shall be impossible to start the machine when locked. The switch shall be capable of disconnecting the full load current. For motors with a nominal current above 180 A, the safety switch facility shall be provided by means of the motor circuit breaker. 

The switch shall include the following positions/functions: 

O : Stop, pad-lockable, power supply is cut-off 

I : Automatic, control from panel. 

The switch shall be installed in the power circuit for the motor and all phases shall be disconnected in the OFF position. 

Status of each safety switch shall be signalled to the PLC as well as SCADA. 

## 8.7.18.2 Emergency Stops: 

In general emergency stop for emergency shutdown is mandatory for any machinery, which can expose personnel to risk of injury during normal operation. 

Emergency stop button is present in local control box for each motor and they will stop relevant motor. 

Emergency stop which will be operated with Category 4 24 VDC emergency safety relay will be placed for groups belonging to those areas. It will not reset from SCADA or PLC. Operator will reset manually from board cover when emergency disappears. Emergency stop relay will switch off all control voltages for relevant group. Emergency stop which is present in PLC board cover, will switch off all control voltages for relevant MCC. There will be group emergency stop areas warning light/emergency stop reset illuminated pushbutton in board 

