1 PE connection (earthing screw)
Fig. 7 PE connection (earthing screw) at the cooling element
8.6
Information on EMC-compliant installation
A mains filter is integrated into the device. The mains filter fulfils the following
tasks:
–
Guarantees the device's immunity to interference
–
Limits the conducted emitted interference of the device
If installed correctly and if all connecting cables are wired correctly, the device ful
fils the specifications of the related product standard EN 618003.
The category that the device fulfils is dependent on the filter measures used and
the motor cable length. The integrated mains filter is designed so that the device
fulfils the following categories:
Type code
Category
PWM frequency
[kHz]
Max. permissible
length of the
motor cable [m]
8
15
C2
1)
16
5
2)
8
25
CMMTASC23A
CMMTASC43A
C3
16
25
1) To comply with the mains harmonics requirements of EN 6100032, it is necessary to install a line inductor
with two partial windings for mains supply lines L1 and N (2 x
³
5 mH).
2) To comply with the malfunction limit values of category C2 at a cycle frequency of 16 kHz, it is necessary to
install a snap ferrite (Würth, prod. no. 74272722 or compatible) on the motor phases U, V, W (without PE).
Feed through flying leads 1x.
Tab. 14 Category according to the PWM frequency and the cable length
–
If setup and commissioning are performed by a professional with the neces
sary experience for setting up and commissioning drive systems, including
their EMC aspects, category C2 devices can be used in the first environment
(residential area).
–
When operating category C2 devices, limit values apply to the harmonic cur
rents in the mains supply (EN 6100032 or EN 61000312). Please check
whether this is the case for your facility/system. As a rule, compliance with
the limit values for harmonic currents requires the use of external filter meas
ures, e.g. installation of a series line inductor.
–
Category C3 devices are intended for use in the second environment only
(industrial environment). Use in the first environment is not permitted.
This product can generate highfrequency malfunctions, which may make it neces
sary to implement interference suppression measures in residential areas.
Additional information on EMCcompliant installation
è
Description Assembly,
Installation.
8.7
Connection examples
Connection plan, 1-phase mains connection
1 Braking resistor
2 Line safety switch or fuse
3 Main switch/main contactor
4 PELV power supply unit for 24 V
supply
5 Encoder 2 (optional)
6 Encoder 1
Fig. 8 Connection example, 1phase mains connection
Measures for 2phase mains connection
è
Description Assembly, Installation.
STO connection example
The safety subfunction STO (safe torque off) is triggered by an input device that
makes the safety request (e.g. light curtain).
1 Input device for safety request
(e.g. light curtain)
2 Safety relay unit
3 Servo drive CMMTAS
4 Drive axle
Fig. 9 STO sample circuit
Information on the sample circuit
