Festo CMMT-AS-C2-3A-...-S1 Series, Инструкции и руководство по установке

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WARNING!
Risk of injury from electric shock in case of incomplete insulation at the power
connections [X6A], [X9A] and [X9B].
Before operating, plugging in or unplugging the display and operating unit CDSB
or a connector from a hot­plug­capable interface, the following points must be ful­
filled:
•
The conducting lines at the device are completely insulated.
• The protective earth (PE) and the shield connection are correctly connected to
the device.
• The housing is free of damage.
Information for operation with safety functions
NOTICE!
Check the safety functions to conclude the installation process and after every
modification to the installation.
During installation of safety­related inputs and outputs, also observe the follow­
ing:
–
Meet all specified requirements, e.g.:
–
Surrounding area (EMC)
– Logic and load voltage supply
– Mating plug
– Connecting cables
– Cross­wiring
– Additional information è Description Assembly, Installation.
– The maximum permissible cable length between the safety relay unit and the
plug of the I/O interface is 3 m.
– During installation, make sure you meet the requirements of EN 60204­1. In
the event of a fault, the voltage must not exceed 60 V DC. The safety relay
unit must switch off its outputs in the event of a fault.
– Carry out wiring between the safety relay unit and the I/O interface of the
servo drive in such a way as to exclude the risk of a short circuit between the
conductors or to 24 V, as well as a cross circuit
è
EN 61800­5­2, Annex
D.3.1. Otherwise, the safety relay unit must feature cross­circuit detection
and, in the event of a fault, must switch off the control signals on 2 channels.
– Only use suitable mating plugs and connecting cables è Description
Assembly, Installation.
– Avoid conductive contamination between neighbouring plug pins.
– Make sure that no bridges or the like can be inserted parallel to the safety
wiring. For example, use the maximum wire cross section or appropriate
cable end sleeves with plastic sleeves.
– To cross­wire safety­related inputs and outputs, use twin cable end sleeves.
When cross­wiring inputs and outputs, a maximum of 10 devices may be
cross­wired
è
Description Assembly, Installation.
– The safety relay unit and its inputs and outputs must meet the necessary
safety classification of the safety function that is required in each case.
– Connect each of the control inputs to the safety relay unit on 2 channels using
parallel wiring.
– Only use permitted motor cables for the connection BR+/BR– .
– If the diagnostic output of the safety sub­function concerned has to be evalu­
ated: Connect diagnostic output directly to the safety relay unit. Evaluation of
the diagnostic output is either mandatory or optional depending on which
safety classification is desired.
– If diagnostic outputs are cross­wired for a device compound: Wire diagnostic
outputs as a ring. Guide the two ends of the ring to the safety relay unit and
monitor for discrepancies.
8.2 Residual current protective device
WARNING!
Risk of injury from electric shock.
This product can cause a DC current in the residual­current conductor in case of
error. In cases where a residual current device (RCD) or a residual current monitor
(RCM) is used to protect against direct or indirect contact, only the type B kind of
RCD or RCM is permitted on the power supply side of this product.
Information on the residual current protective device è Description Assembly,
Installation.
The touch current in the protective earthing conductor can exceed an alternating
current of 3.5 mA or a DC current of 10 mA. The minimum cross section of the pro­
tective earthing conductor must comply with the local safety regulations for pro­
tective earthing conductors for equipment with high leakage current.
8.3 Mains fuse
The CMMT­AS has no integrated fuse at the mains input or in the intermediate cir­
cuit. An external fuse is required at the mains supply of the device. A device com­
pound coupled in the intermediate circuit must be protected by means of a com­
mon mains fuse. Different requirements for mains fuses are specified for cUL
approval and CE approval.
•
Only use line safety switches and fuses that have the relevant approval and
meet the specifications and protection requirements stated below.
Requirements for line safety switches (circuit breakers) and fuses
Fuse/circuit breaker
type Line safety switch Class J/CC fuse
CE: 16
cUL: 15 CE: 25
cUL: 25 Max. permissible rated cur­
rent [A]
Restrictions concerning line protection
è Tab. 13 Line protection requirements
Short circuit current rating
SCCR of mains fuse [kA] Min. 10 Min. 100
Approvals CE: IEC 60947­2
cUL: UL489, CSA C22.2
No. 5 CE: CE approval
cUL: UL Listed Standard
248, CSA approval
Rated voltage [V AC] CE: min. 240
cUL: min. 277 CE: 600
cUL: 600
Overvoltage category III
Degree of contamination 2
Characteristic C Slow­blowing
Tab. 12 Requirements for line safety switches and fuses
In the case of electricity networks with a SCCR > 10 kA, only class J/CC fuses are
permitted. The line safety switch is used for line protection. The rated current of
the line safety switch must be less than or equal to the acceptable current load of
the selected conductor cross section. The line safety switch must also take into
account the overload case and must not trip (overload case: up to a 3­fold
increase in the input current for 2 s).
Line protection requirements
Cable cross sec­
tion at [X9A] Mains fuse [A] Description
[mm
2
] CMMT­AS­
C2­3A­... CMMT­AS­
C4­3A­...
Minimum electrical
protection 0.75 CE: 6
cUL: 6
cUL
1)
: 10 1.5
CE
2)
: 13
cUL
1)
: 15
Maximum electrical
protection of an indi­
vidual device or a
device compound
2.5
CE
2)
: 16
1) Specifications according to UL 61800­5­1:2012; for cUL, only use Cu cables that have a permissible con­
stant insulation temperature of at least 75 °C.
2) Specifications according to DIN VDE 0298­4:2013, permissible currents according to EN 60204­1 may dif­
fer (depending on laying method and temperature)
Tab. 13 Line protection requirements
Electrical protection when load circuit is supplied with DC power
The CMMT­AS allows the load circuit to be supplied with DC power. With DC
power, external electrical protection is once again required in the form of short
circuit protection and line protection. The fuse that is used must be capable of
reliably disconnecting the maximum DC supply voltage that could occur and the
potential short circuit current (SCCR
DC
).
Maximum fuse protection: 16 A
If fuse protection is to be avoided on the DC side, check whether the fuse protec­
tion could alternatively be installed on the AC side upstream of the DC power sup­
ply unit.
8.4 Permissible and impermissible electrical network types
Information on allowed and prohibited electrical network types and necessary
measures for use in IT networks
è Description Assembly, Installation.
8.5 Connection of the mains side PE protective conductor
All PE protective conductors must always be connected prior to commissioning for
safety reasons. Observe the regulations of EN 60204­1 when implementing pro­
tective earthing.
Always connect PE connection on the mains side (PE rail in the control cabinet) at
the following positions:
–
PE pin of the connection [X9A]
– PE connection (earthing screw) next to the upper slot of the cooling element
The cross section of the PE conductor must be at least equal to the cross section
of the line conductor L at [X9A]. For individually wired devices, carry out wiring in a
star shape. For cross­wired devices, observe the requirements for cross­wiring.
Recommendation: Use copper earth strap (advantageous for EMC).
1. Equip PE conductors for the earthing screw with a suitable cable lug.
2. Tighten earthing screw with a TORX screwdriver of size T20 (tightening torque
1.8 Nm ± 15 %).