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6.6.3
Intrinsically safe circuits for sensors or probes
Observe Standard IEC / EN 60079‑14 when selecting and routing connecting cables.
NOTICE
Intrinsically safe circuits for sensors or probes
If blue connection terminals are installed for sensors, you must connect them to certified
intrinsically safe circuits. This can otherwise result in damage.
Ensure that you also observe the additional requirements laid down in IEC / EN 60079-14 for
intrinsically safe equipment and the associated connecting cables.
NOTICE
Connecting the temperature sensors
Temperature sensors may be connected only to intrinsically safe circuits with certified
evaluation devices. The maximum permissible input currents and powers according to the EU
type-examination certificate may not be exceeded. This can otherwise result in damage.
If shielded, intrinsically safe temperature sensors are fitted or mounted, they must be
connected using the blue connecting terminals. The cable shield is grounded just once;
multiple grounding is not permitted.
6.6.4
Connect metal shield in the terminal box
If you are using metal-armored cables that are inserted into the terminal or auxiliary terminal
boxes with non-intrinsically safe circuits, then ground the metal shield in the terminal box.
Additional grounding points are permissible.
● In terminal boxes with internal grounding part, connect the metal shield to the internal
grounding point.
● In terminal boxes without internal grounding part, connect the metal shield to one of the
green-yellow grounding terminals.
6.6.5
Connecting an external fan motor
1. When working on the external fan, carefully comply with the instructions provided in the
operating instructions for the external fan motor.
2. Connect the external fan motor in accordance with the terminal diagram provided in the
external fan terminal box. When doing this, carefully observe the data stamped on the rating
plate.
3. Check:
– The line voltage and line frequency match the details on the rating plate;
– the cross-sections of the designated connecting cables are matched to the rated current
of the motor (with due consideration for the relevant installation directives).
Electrical connection
6.6 Connecting the auxiliary circuits
SIMOTICS FD 1MQ1
90
Operating Instructions 01/2019
Summary of Contents for SIMOTICS FD 1MQ1
Page 2: ...28 01 2019 14 14 V11 01 ...
Page 144: ...Maintenance 9 2 Corrective Maintenance SIMOTICS FD 1MQ1 144 Operating Instructions 01 2019 ...
Page 170: ...Disposal 11 5 Disposal of components SIMOTICS FD 1MQ1 170 Operating Instructions 01 2019 ...
Page 172: ...Service and Support SIMOTICS FD 1MQ1 172 Operating Instructions 01 2019 ...
Page 176: ...Quality documents SIMOTICS FD 1MQ1 176 Operating Instructions 01 2019 ...
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