Completing Connection Work - Siemens SIMOTICS DC 1GH5 Operating And Installation Instructions

Electrical connection

6.10 Completing connection work

The connecting leads of the temperature sensors are routed to the terminal box. The switching
and assignment of the terminals is shown on the terminal diagram in the auxiliary terminal box.
Hazard due to electric shock
The installation of the temperature sensors for the winding monitoring with respect to the
winding is implemented according to the requirements for basic insulation. The temperature
sensor connections are located in terminal boxes, safe to touch, and have no protective
separation. This is the reason that in the case of a fault, a hazardous voltage can be present
at the measuring sensor cable. When touched, this can result in death, severe bodily injury
and material damage.
When connecting the temperature sensor to external temperature monitoring devices, when
required, apply additional measures to fully comply with the requirement "Hazard due to
electric shock," see IEC 60664-1 or IEC 61800-5-1.
6.10 Completing connection work
1. Before closing the terminal box, please check that:
2. Then close the terminal box. Tightening torque for the cover fastening screws is 22 Nm.
58
WARNING
– The cables and links match the terminal diagram inside the terminal box cover.
– The electrical connections in the terminal box are tight and fully comply with the
specifications in the preceding chapters.
– The inside of the terminal box is clean and free of any cable debris.
– All of the clamping bolts and entry parts are securely tightened. This also applies to
unused terminals.
– Minimum air clearances have been respected.
– The connecting cables are arranged so that they do not come into contact with the
machine, and the cable insulation is not damaged.
– Any unused entry points are sealed. Only open the sealing elements with a tool.
– All of the seals/gaskets and sealing surfaces of the terminal box are in a good condition.
If the joins are sealed purely by metal sealing surfaces, these sealing surfaces must be
cleaned and lightly greased again.
– The right cable guides are fitted with respect to degree of protection, method of laying,
permissible cable diameter, etc., as stated in the specifications.
– With a U-shaped terminal box casing, the entry plate is aligned and secured in such a
way that the seat for the box cover seal is continuous all the way round.
SIMOTICS DC 1GH5
Operating Instructions 02/2016