
5
Electrical Installation
Additional installation instructions for group drives
42
Operating Instructions – MOVIFIT
®
-FC
5.3
Additional installation instructions for group drives
The following figure shows the prescribed installation for group drives with
MOVIFIT
®
-FC:
When installing such group drives, also follow the installation instructions below:
• Connect no more than 3 motors in series connection to the MOVIFIT
®
-FC unit. The
sum of the rated motor currents may not exceed the MOVIFIT
®
-FC rated unit current.
• The sum of all cable sections between MOVIFIT
®
-FC and the motors may not
exceed 15 m.
• Monitoring the temperature of the motors using TF is
not
permitted.
Each motor must have a TH for temperature monitoring. Connect the THs in series
connection to the MOVIFIT
®
-FC unit.
• The motor brakes may be controlled using constant voltage only (alternative brake
control system at startup using MOVITOOLS
®
MotionStudio). The rated voltage of
all connected brakes must be equal.
1240954123
MOVIFIT
®
TIPS
• For more information on motor/brake startup, refer to the MOVIFIT
®
function level
"Classic" or "Technology" manual.
• When several motors are controlled by a MOVIFIT
®
-FC drive (group drive), the
internal motor protection model does not protect the connected motors against
overheating.
For this reason, the drive must have an internal or external braking resistor. The
braking resistor is used to dissipate the regenerative energy when the motor brakes.
Summary of Contents for MOVIFIT-FC
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