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Table 15:
Maximum permissible protection
max. protection
Rated power
Switchgear
(switchgear with power class)
1)
16 A (gL/gG)
up to 1.5 kW
Reversing contactor A1
32 A (gL/gG)
up to 7.5 kW
Reversing contactor A2
63 A (gL/gG)
up to 15 kW
Reversing contactor A3
16 A (g/R) I²t<1,500A²s
up to 1.5 kW
Thyristor B1
32 A (g/R) I²t<1,500A²s
up to 3 kW
Thyristor B2
63 A (g/R) I²t<5,000A²s
up to 5.5 kW
Thyristor B3
The AUMA power class (A1, B1, ...) is indicated on the actuator controls name plate
1)
Consider the motor starting current (IA) (refer to electrical data sheet) when selecting
the circuit breaker. We recommend tripping characteristics D or K for circuit breakers
in accordance with IEC 60947-2. For controls equipped with thyristors, we recommend
safety fuses instead of circuit breakers. However, the use of circuit breakers is
basically permitted.
We recommend refraining from using residual current devices (RCD). However, if
an RCD is used within the mains, the residual current device must be of type B.
For actuator controls equipped with a heating system and external electronics power
supply, the fuses for the heating system have to be provided by the customer (refer
to wiring diagram F4 ext.)
Table 16:
Fuse for heating system
Designation in wiring diagram = F4 ext.
230 V AC
115 V AC
External power supply
1 A T
2 A T
Fuse
If actuator controls are mounted separately from actuator (actuator controls on wall
bracket): Consider length and cross section of connecting cable when defining the
protection required.
Potential of customer
connections
Refer to Technical data for options of isolated potentials.
Safety standards
Safety measures and safety equipment must comply with the respectively valid
national on site specifications. All externally connected devices shall comply with
the relevant safety standards applicable for the place of installation.
Connecting cables,
cable glands, reducers,
blanking plugs
●
We recommend using connecting cables and connecting terminals according
to rated current (I
N
) (refer to motor name plate or electrical data sheet).
●
For device insulation, appropriate (voltage-proof) cables must be used. Specify
cables for the highest occurring rated voltage.
●
Use connecting cables, cable glands, reducers, blanking plugs with a minimum
temperature range of +80 °C.
●
To avoid contact corrosion, we recommend the use of sealing agents for cable
glands and blanking plugs made of metal.
●
For connecting cables exposed to UV radiation (outdoor installation), use UV
resistant cables.
●
For the connection of position transmitters, screened cables must be used.
Cable installation in ac-
cordance with EMC
Signal and fieldbus cables are susceptible to interference. Motor cables are
interference sources.
●
Lay cables being susceptible to interference or sources of interference at the
highest possible distance from each other.
●
The interference immunity of signal and fieldbus cables increases if the cables
are laid close to the earth potential.
27
SAEx 07.2 – SAEx 16.2/SAREx 07.2 – SAREx 16.2 Control unit - electromechanical
ACExC 01.2 Intrusive Profinet
Electrical connection