description of parameters
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Mechanical Brake Control Logic
Figure 3. Mechanical brake control logic.
Mechanical brake control signal can be selected to any digital or relay output to control the
external mechanical brake.
In the upper section of Figure 3 you can find the mechanical brake opening logic. Five signals and
the delay are required for the mechanical brake to open. If current, torque or frequency signal is
not needed for brake opening, then these parameters can be set to zero. The external brake input
signal is programmable for digital input DIN3 or DIN4.
In the lower section of Figure 3 you can find the mechanical brake closing logic. The brake close
circuit has higher priority than the open circuit. So if closing signal is active the mechanical brake
will be closed.
The brake will be closed immediately in case of fault or when the motor is stopped.
R E S E T
S E T
BRAKE OPENING LOGIC
BRAKE CLOSING LOGIC
To n
MOTOR CURRENT
MOTOR TORQUE
MOTOR FREQ
P2.3.1.1/2.3.1.2
.CURRENT LIMIT
P2.3.1.5/2.3.1.6
FREQ LIMIT
P2.3.1.3/2.3.1.4
TORQUE LIMIT
MOTOR RUNNING
V1.1
OUTPUT FREQ
RUN REQUEST
FAULT ACTIVE
MOTOR RUNNING
P2.7.1
or
P2.7.2
or
P2.7.3
MEC. BRAKE
CONTROL SIGNAL
To n
O R
A N D
A N D
P2.3.1.7
BRAKE OPEN DELAY
DIN3/DIN4
EXT. BR INPUT SIGNAL
P2.3.2.2
BRAKE CLOSE DELAY
P2.3.2.1
FREQ CLOSE LIMIT
