Festo CMMT-AS-C7/12-11A-P3-S1 Operating Instructions Manual page 12

[X9A]
Tab. 37: Power supply and DC link circuit
Requirements for the Single device
connecting cable
Number of insulated wires and 4 insulated wires, unshielded
shielding
Min. conductor cross section 0.5 mm
including wire end sleeve with
plastic sleeve
Max. conductor cross section 4 mm
2
including wire end sleeve with
plastic sleeve
Max. conductor cross section 6 mm
2
including wire end sleeve
without plastic sleeve
Max. length 2 m
Tab. 38: Requirements for the connecting cable
7.10.2 [X9C], logic voltage supply
WARNING
Risk of injury due to electric shock.
• For the electrical power supply with extra-low voltages, use only PELV circuits
that guarantee a reinforced isolation from the mains network.
• Observe IEC 60204-1/EN 60204-1.
• Only connect PELV circuits with an output current of max. 25 A. Otherwise,
use a separate external fuse: 25 A.
[X9C]
Tab. 39: Logic voltage supply
Requirements for the Single device
connecting cable
Number of insulated wires and 2 insulated wires, unshielded
shielding
Min. conductor cross section 0.5 mm
incl. wire end sleeve with
plastic sleeve
Max. conductor cross section 2.5 mm
incl. plastic wire end sleeve
Max. length 2 m
Tab. 40: Requirements for the connecting cable
7.10.3 [X9B], connection for braking resistor
The connection [X9B] is located on the top of the device. The internal braking
resistor or a suitable external braking resistor is attached to the connection [X9B].
Pin Function Description
6 DC+ DC link circuit positive
potential
5 DC- DC link circuit negative
potential
4 L3 Mains supply phase L3
3 L2 Mains supply phase L2
2 L1 Mains supply phase L1
1 PE Protective earthing
Device compound
without DC link coupling:
4 wires, unshielded
with DC link coupling: 6 wires,
unshielded
2 1.5 mm 2
4 mm
2
6 mm
2
£ 0.5 m
Pin Function Description
2 24 V DC positive potential of logic
voltage supply
1 0 V Reference potential for
logic voltage supply
Device compound
2 insulated wires, unshielded
0.5 mm
2 2
2 2.5 mm 2
0.5 m
[X9B]
Tab. 41: Connection for the braking resistor
Requirements for the connecting cables of external braking resistors
Number of insulated wires and shielding
Min. conductor cross section incl. wire end
sleeve with plastic sleeve
Max. conductor cross section incl. plastic wire
end sleeve
Max. cable length
Wiring
Tightening torque of the screw terminals on the
mating plug GIC 2.5 HCV/2-ST-7.62
1) Specification of the manufacturer at the time the documentation was approved
Tab. 42: Requirements for the connecting cable
Selection of suitable braking resistors
Information on selecting suitable braking resistors è Manual Assembly, Installa-
tion.
7.11 Cross-wiring
Cross-wiring makes it possible to set up a device compound consisting of up to 10
servo drives CMMT-AS. The different cross-wiring options are as follows:
– Cross-wiring of I/O signals at the connection [X1A]
– Cross-wiring of the mains and logic voltage supply without DC link coupling
– Cross-wiring of the mains and logic voltage supply with DC link coupling
Information on cross-wiring è Manual Assembly, Installation and Manual Safety
sub-function.
7.12 STO installation
Inputs and outputs for the safety sub-function STO
The 2-channel request for the safety sub-function is made via the digital inputs
#STO-A and #STO-B. The STA diagnostic output indicates whether the safe status
has been reached for the safety sub-function STO.
Connection Pin Type
[X1A] X1A.11 DIN
X1A.12
X1A.22 DOUT
Tab. 43: Inputs and outputs for the safety sub-function STO
7.13 SBC installation
Inputs and outputs for the safety sub-function SBC
The 2-channel request for the safety sub-function is made via the digital inputs
#SBC-A and #SBC-B at the connection [X1A]. The SBA diagnostic output indicates
whether the safe status has been reached for the safety sub-function SBC. The
holding brake is connected via the connection [X6B]. The external clamping unit is
connected via the connection [X1C].
Connection Pin Type
[X1A] X1A.9 DIN
X1A.10
X1A.21 DOUT
[X1C] X1C.1 DOUT
X1C.5
[X6B] X6B.1 –
X6B.2 OUT
X6B.3
Tab. 44: Inputs and outputs for the SBC safety sub-function
7.14 SS1 installation
Inputs and outputs for the safety sub-function SS1
The safety sub-function SS1 is wired like the safety sub-function STO but is
supplemented by the functional input CTRL-EN so that the braking ramp can be
activated by the safety relay unit.
Pin Function Description
2 BR+Ch Braking resistor positive
connection
1 BR-Ch Braking resistor negative
connection
2 wires, shielded
0.25 mm
2
2.5 mm
2
2 m
inside the control cabinet, shield connected to
PE
0.5 ... 0.6 Nm 1)
Identifier Function
#STO-B Safe torque off, channel B
#STO-A Safe torque off, channel A
STA Safe torque off acknowledge
Identifier Function
#SBC-B Safe brake control, channel B
#SBC-A Safe brake control, channel A
SBA Safe brake control acknowledge
BR-EXT Output for connection of an
external clamping unit (high-side
switch)
GND Reference potential (ground)
FE Functional earth connected to pro-
tective earth
BR+ Holding brake (positive potential)
BR– Holding brake (negative potential)