西门子数控备件6FC5247-0AA11-0AA0代理商

⁾Factory setting: not activated (can be parameterized)

²⁾ This function requires an additional external circuit.

 

上海昊征自动化科技有限公司

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Power unit protection	Deion
Ground fault monitoring at output end	A ground fault at the output end is detected by a summation current monitor and results in shutdown in grounded systems.
Electronic short-circuit protection at the output end	A short-circuit at the output end (e.g. at the converter output terminals, in the motor cable or in the motor terminal box) is detected and the converter shuts down with "fault".
Thermal overload protection	An alarm is issued first when the overtemperature threshold responds. If the temperature rises further, the unit independently adjusts the pulse frequency or output current so that a reduction in the thermal load is achieved. Once the cause of the fault has been eliminated (e.g. cooling has been improved), the original operating values are automatically resumed.

Cable cross-sections and connections

The table below lists the recommended and maximum possible cable connections at the line and motor ends (versions A and C).

The recommended cross-sections are d on the specified fuses. They are applicable for 3-wire cables manufactured out of copper with PVC insulation, routed horizontally in air and a permissible wire temperature of 70 °C (158 °F) (e.g. Protodur NYY or NYCWY) for an ambient temperature of 40 °C (104 °F) and individual routing.

When the conditions differ from those specified above (cable routing, cable grouping, ambient temperature), the appropriate correction factors according to IEC 60364‑5‑52 must be taken into account.

Rated power	Converter	Line supply connection			Motor connection			Cabinet grounding
400 V/690 V	SINAMICS G120P Cabinet versions A and C	Recommended cross-section 1)	Maximum conductor cross-section	Fixing screw	Recommended cross-section 1)	Maximum conductor cross-section	Fixing screw	Maximum conductor cross-section	Fixing screw
		IEC	IEC		IEC	IEC		IEC
kW	6SL3710‑ ...	mm2	mm2		mm2	mm2		mm2
380 ... 480 V 3 AC
75	1PE31-5AB0-Z	50	2 × 120	M12	50	2 × 120	M12	2 × 120	M12
90	1PE31-8AB0-Z	70			70
110	1PE32-1AB0-Z	95			95
132	1PE32-5AB0-Z	95			2 × 50
160	1PE33-0 . A0-Z	2 × 120	2 × 240		2 × 95	2 × 240	M12 x 40 2)	3 × 240
200	1PE33-7 . A0-Z	2 × 120			2 × 95
250	1PE34-6 . A0-Z	2 x 185			2 x 150
315	1PE35-8 . A0-Z	2 x 240	4 × 240		2 x 185	4 x 240		6 x 240
355	1PE36-6 . A0-Z	3 x 150			2 x 240
400	1PE37-4 . A0-Z	3 x 185			2 x 240
450	1PE38-4AA0-Z	4 x 185	6 × 240		4 × 150	4 x 240		6 × 240
500	1PE38-8AA0-Z	4 x 185			4 × 150	6 × 240
560	1PE41-0AA0-Z	4 x 240			4 × 150
500 ... 690 V 3 AC
315	1PG33-7 . A0-Z	2 x 120	4 × 240	M12	2 × 120	4 x 240	M12 x 40 2)	6 × 240	M12
355	1PG34-0 . A0-Z	2 x 150			2 × 120
400	1PG34-5 . A0-Z	2 x 185			2 x 150
450	1PG35-2 . A0-Z	3 x 120			3 x 95
500	1PG35-8AA0	2 x 240	6 × 240		2 x 185	4 x 240
560	1PG36-5AA0	3 x 185			2 x 240
630	1PG37-2AA0	3 x 185			2 x 240

¹⁾ The recommendations for the North American market in AWG or MCM should be taken from the appropriate NEC (National Electrical Code) or CEC (Canadian Electrical Code) standards.

²⁾ The connecting blocks can be damaged when using longer screws.

Cable cross-sections required for connecting to the line supply and to motors

It is always recommended to use shielded - for higher power ratings - where possible symmetrical, 3-wire three-phase cables between the converter and the motor, and where required, to connect several of these cables in parallel. There are essentially 2 reasons for this:

• Only then can the high IP55 degree of protection at the motor terminal box be easily achieved. The reason for this is that cables are routed into the terminal box through glands, and the number of possible glands is restricted by the terminal box geometry. Individual cables are less suitable in achieving this.
• With symmetrical 3-wire three-phase cables, the summed ampere-turns over the cable outer diameter are equal to zero. They can easily be routed in conductive, l cable ducts or racks without any significant currents (ground current or leakage current) being induced in these conductive, l connections. The danger of induced leakage currents, and thus of increased cable sheath losses, is significantly higher for single-wire cables.

The cable cross-section required depends on the current being conducted in the cable. The permissible current loading of cables is defined, for example, in IEC 60364‑5‑52. It depends on ambient conditions, such as temperature, but also on the routing method. It should be taken into account as to whether cables are routed individually and therefore relatively well ventilated, or whether groups of cables are routed together. In the latter case, the cables have significantly poorer ventilation and can therefore heat one another up more significantly. For the relevant correction factors applicable to these boundary conditions, please refer to IEC 60364‑5‑52.

The table below provides a guide to the recommended cross-sections (d on IEC 60364‑5‑52) for PVC-insulated, 3-wire copper and aluminum cables, a permissible conductor temperature of 70 °C (158 °F) (e.g. Protodur NYY or NYCWY), and an ambient temperature of 40 °C (104 °F).

Current-carrying capacity according to IEC 60364‑5‑52 at 40 °C (104 °F)

Cross-section 3-wire cable	Copper cable		Aluminum cable
	Single routing	Several cables lying next to one another 1)	Single routing	Several cables lying next to one another 1)
mm2	A	A	A	A
3 × 2.5	22	17	17	13
3 × 4	30	23	23	18
3 × 6	37	29	29	22
3 × 10	52	41	40	31
3 × 16	70	54	53	41
3 × 25	88	69	68	53
3 × 35	110	86	84	65
3 × 50	133	104	102	79
3 × 70	171	133	131	102
3 × 95	207	162	159	124
3 × 120	240	187	184	144
3 × 150	278	216	213	166
3 × 185	317	247	244	190
3 × 240	374	292	287	224

¹⁾A maximum of 9 cables may be routed directly next to one another horizontally on a cable tray.

Cables must be connected in parallel for higher currents.

Note:

The recommendations for the North American market in AWG or MCM should be taken from the corresponding standards NEC (National Electrical Code) or CEC (Canadian Electrical Code).

Grounding and protective conductor cross-sections

The protective conductor must be dimensioned taking into account the following data:

• In the case of a ground fault, no impermissibly high contact voltages resulting from voltage drops on the PE conductor caused by the ground fault current may occur (< 50 V AC or < 120 V DC, IEC 61800‑5‑1, IEC 60364, IEC 60543).
• The PE conductor should not be excessively loaded by any ground fault current it carries.
• If it is possible for continuous currents to flow through the PE conductor when a fault occurs, the PE conductor cross-section must be dimensioned for this continuous current.
• The PE conductor cross-section should be selected according to IEC 60204‑1, IEC 60439‑1, IEC 60364.

Cross-section, line conductor	Minimum cross-section, external protective conductor
mm2	mm2
up to 16	Minimum cross-section of external conductor
16 ... 35	16
from 35	At least half the cross-section of external conductor

Note:

The recommendations for the North American market in AWG or MCM should be taken from the corresponding standards NEC (National Electrical Code) or CEC (Canadian Electrical Code).

Switchgear and motors are usually grounded separately via a local ground electrode. With this constellation, the ground fault current flows via the parallel ground connections and is divided. In spite of the relatively small protective conductor cross-sections used in accordance with the table above, no inadmissible touch voltages occur with this grounding system. 
However, from experience gained with different grounding constellations, we recommend that the ground cable from the motor returns directly to the converter. For EMC reasons and to prevent bearing currents – for higher power ratings – symmetrical, 3-wire, three-phase cables should be preferentially used instead of four-wire cables. For 3-wire cables, the protection or PE wire must be routed separately or arranged symmetrically in the motor cable. The symmetry of the PE conductor is achieved using a conductor surrounding all phase conductors or using a cable with a symmetrical arrangement of the three phase conductors and three ground conductors.

Through their high-speed controllers, the converters limit the load current (motor and ground fault currents) to an rms value corresponding to the rated current. We therefore recommend the use of a PE conductor cross-section analogous to the phase conductor cross-section for grounding the control cabinet.

The most important directives and standards are listed below. These are used as basis for the SINAMICS G120P Cabinet converter cabinet units and they must be carefully observed to achieve an EMC-compliant configuration that is safe both functionally and in operation.

European directives
2014/35/EU	Low-voltage directive: Directive of the European Parliament and Council of February 26, 2014 for the harmonization of the laws of the member states relating to the provision of electrical equipment designed for use within certain voltage limits on the market (amended version)
2014/30/EU	EMC directive: Directive of the European Parliament and Council of February 26, 2014 for the harmonization of the laws of the member states relating to electromagnetic compatibility (amended version)
2006/42/EC	Machinery directive: The directive of the European Parliament and Council of May 17, 2006 on machinery and for changing Directive 95/16/EC (amendment)
European standards
EN 60146‑1‑1	Semiconductor converters – General requirements and line-commutated converters Part 1‑1: Specification of basic requirements
EN 60204‑1	Electrical equipment of machines Part 1: General requirements
EN 60529	Degrees of protection provided by enclosures (IP code)
EN 61800‑2	Adjustable speed electrical power drive systems Part 2: General requirements – Rating specifications for low-voltage adjustable frequency a.c. power drive systems
EN 61800‑3	Adjustable speed electrical power drive systems Part 3: EMC product standard including specific test methods
EN 61800-5-1	Adjustable speed electrical power drive systems Part 5: Safety requirements Main section 1: Electrical and thermal requirements