ATC770 Microprocessor-Based Pressure/Process Controller 21
• Don’t run input wires together with power cables
•For 24 V DC the polarity need not be observed.
The power supply input is fuse protected by a sub miniature fuse rated T, 1A, 250V.
When the fuse is damaged, it is advisable to verify the power supply circuit. It may be necessary to
send back the instrument to Dynisco for service.
The safety requirements for Permanently Connected Equipment say:
•a switch or circuit-breaker shall be included In the building installation;
• it shall be in close proximity to the equipment and within easy reach of the operator
• it shall be marked as the disconnecting device for the equipment
NOTE 5:
A single switch or circuit breaker can drive more than one Instrument.
•When a neutral line is present, please connect it to terminal 54.
• Protective conductor terminals shall be connected to earth.
Fig. 3 ATC770 Wiring - 4-20 mA Transmitter Internal 24 VDC Power Supply
To Next Page
Loading...
Need help?
General
