●
Length due to voltage drop on connection line to motor brake
●
Other mechanical requirements resulting from use of motor cable, such
as bending radiuses, material compatibility; see documentation "Rexroth
Connection Cables".
Motor Cable Selection
To find the appropriate cable for the selected combination of motor and
drive controller, see documentation "Rexroth Connection Cables".
Allowed Length of Motor Cable
The length of the motor power cable is limited to protect the drive controllers.
The longer the motor cable and the higher the switching frequency f
s
of the
drive controller which has been set, the higher the occurring losses.
Observe that the allowed motor cable length depends on the
switching frequency f
s
of the power output stage which has been
set. As a matter of principle, the higher the switching frequency,
the shorter the allowed cable length to protect the drive control‐
lers against overload.
Only set such switching frequencies which are supported by the
involved components! Observe the technical data for drive con‐
trollers and motors.
See also Parameter Description "P‑0‑0001, Switching frequency
of the power output stage".
Allowed Cable Lengths at Ambient Temperature T
a_work
≤ 40 °C according to
EN 60 204:
PWM frequency /
kHz
Allowed cable length / m
Without motor filter
With motor filter
3)
Shielded
Unshielded
1)
2
2)
100
175
200
4
75
150
200
8
38
150
Not allowed
12
25
Not allowed
Not allowed
16
18
Not allowed
Not allowed
1)
Only allowed for HCS02/HCS03 drive controllers, observe note "Un‐
shielded motor cables" below
2)
Depending on the drive controller which is used
3)
Additional components HMF
Tab.8-31:
Line Lengths
Bosch Rexroth AG
DOK-INDRV*-SYSTEM*****-PR06-EN-P
Rexroth IndraDrive Drive Systems with HMV01/02 HMS01/02, HMD01, HCS02/03
138/309
Configuring the Drive System
