Siemens SIMATIC SIMOSTEP 1FL3041 Functional Description page 29

02.05
Mains connection
!
Intermediate circuit
connection
Motor wiring
Pulse interface
Signal interface
© Siemens AG 1998 All Rights Reserved
FM-STEPDRIVE/SIMOSTEP (FB)
The unit must be protected by an external 16 a type Kor C standard fuse.
Danger
If the neutral conductor is connected, the three-phase power supply
requires that the individual phases and neutral be
connected/disconnected simultaneously. In order to avoid overvoltage.
In order to fulfil the EMC requirements, a mains filter must be inserted into
the mains supply line (see chapter 6.4).
With multi-axis wiring and single-phase mains connection, the
intermediate circuit connections DC+ and DC- can be interconnected for
energy exchange between the power controllers. This is recommended
when considerable masses must be accelerated and decelerated within a
short time.
For the cable connection in the motor terminal panel, unscrew the four
Phillips screws of the terminal panel.
The PE wire and the shield of the motor cable must be connected on the
motor and the device end as shown in figure 6-1.
The protective conductor connection on the motor is usually established
via the motor fastening components. If this connection should be
insufficient, the protective conductor may be connected to the external
terminal of the motor.
A shielded 3-wire standard cable can be used for connecting the motor
(see accessory table, chapter 6.6).
The cable shield must be clamped with the motor cable gland on the
motor and connected to the strain relief spring on the power controller
(remove the sheath at the strain relief element).
Behind the strain relief element, the cable sheath should reach as far as
possible to the motor connection on the FM-STEPDRIVE.
At the cable entry into the cabinet, the cable shield must be connected to
a grounded shield terminal (remove the sheath at the terminal).
Ready-made cables with sub-D connectors can be used for connecting
the pulse interface of the FM-STEPDRIVE power controller to the
positioning module FM-353 or the FM-NC/FM357 controller (see
accessory table, chapter 6.6).
For a wiring example, see chapter 6.2.
The signal interface must be supplied with 24 V DC from an external
power supply unit.
The 24 V supply must meet the requirements of the DIN VDE 19240
standard. For a wiring example, see chapter 6.2.
6 Wiring
6-3