SV-iS7 User Manual - Inverter Drive Supermarket

Chapter 8 Applied Functions
8.1.37 Brake control
Group Code No. Function Display Setting Display Setting Range Unit
DRV 09 Control Mode 0 V/F -
41 BR Rls Curr - 50.0 0~180% %
42 BR Rls Dly - 1.00 0~10.0 Sec
ADV
44
45
BR Rls Fwd Fr
BR Rls Rev Fr
-
-
1.00
1.00
0~Maximum frequency
0~Maximum frequency
Hz
Hz
46 BR Eng Dly - 1.00 0~10 Sec
47 BR Eng Fr - 2.00 0~Maximum frequency Hz
OUT 31~33 Relay x or Q1 35 BR Control - -
This is used for controlling the On/Off motions of the brake in the load system using the electronic brake. The
motion sequence varies according to the set value of the control mode(DRV-09). Before constructing the sequence,
check the control mode setting.
When the brake control is active, the starting DC braking(ADV-12) and dwell operation(ADV 20~23) are not active.
When torque control(DRV-10) is set, brake control is not active.
[When the Control Mode Is Not Vector : ]
1) Brake Open Sequence
If an operating command is given with the motor static, the inverter accelerates to the open frequency(ADV-44,45)
forward or reversely. When the current through the motor reaches the brake open current(BR Rls Curr) after reaching
the brake open frequency, the brake open signals are released with the output relay or multi-function output terminal
set for brake control. Acceleration starts after the frequency is maintained for the brake open delay time(BR Rls Dly).
2) Brake Closed Sequence
If a stop command is given during operation, the motor decelerates. When the output frequency reached the brake
closed frequency(BR Eng Fr), deceleration stops and the brake closed signal is released to the set output terminal.
After being maintained for the brake closed delay time(BR Eng Dly), the output frequency becomes 0. If the DC
braking time(ADV-15) or DC braking amount(ADV-16) is set, inverter output is blocked after DC braking. For DC
braking motion, see page 7-27.
[When the Control Mode Is Set at Vector[
1) Brake Open Sequence
If the operating command is input, the brake open signal is released with the output terminal set after the initial
excitation time. Acceleration starts after the brake open delay time(BR Rly Dly).
2) Brake Closed Sequence
If a stop command is given, deceleration is carried out until the speed reaches 0 and the brake closed signal is
released. Output is blocked after the set brake closed delay time(BR Eng Dly). This is not active in the torque control
mode.
8-54