Mitsubishi Electric FR-E800, Instruction Manual

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15. (A) Application Parameters
15.1 Brake sequence function
*1 The speed deviation excess detection frequency is used under Vector control or PM sensorless vector control. (Refer to page 130 for details.)
 Connection diagram
*1 The input signal terminals differ by the settings of Pr.178 to Pr.189 .
*2 The output signal terminals differ by the settings of Pr.190 to Pr.196 .
*3 Be careful of the permissible current of the built-in transistors on the inverter. (24 VDC 0.1 A)
NOTE
• The automatic restart after instantaneous power failure function does not operate when brake sequence is selected.
• To use this function, set the acceleration/deceleration time to 1 second or higher.
• Changing the terminal assignment using
Pr.178 to Pr.189 (Input terminal function selection) or Pr.190 to Pr.196 (Output
terminal function selection) may affect the other functions. Set parameters after confirming the function of each terminal.
 Setting the brake sequence operation
• Set Pr.292 Automatic acceleration/deceleration = "7 or 8 (braking sequence operation)".
To ensure sequence operation, it is recommended to use with Pr.292 = "7" (with brake opening completion signal input).
280
A102 Brake opening current
detection time
0.3 s 0 to 2 s Generally set between 0.1 and 0.3 s.
281
A103
Brake operation time at start 0.3 s 0 to 5 s
Set the mechanical delay time until braking eases. When Pr.292 = "8",
set the value calculated by adding approx. 0.1 to 0.2 s to the
mechanical delay time until braking eases.
282
A104
Brake operation frequency 6 Hz 0 to 30 Hz
Turn OFF the Brake opening request (BOF) signal and set the
frequency for operating the electromagnetic brake. Generally, set the
value calculated by adding 3 to 4 Hz to the
Pr.278 setting value. This
can be set only when Pr.282 ≥ Pr.278 .
283
A105
Brake operation time at stop 0.3 s 0 to 5 s
When Pr.292 = "7", set the value calculated by adding 0.1 s to the
mechanical delay time until the brake closes. When Pr.292 = "8", set
the value calculated by adding to approx. 0.2 to 0.3 s to the
mechanical delay time until the brake closes.
284
A106 Deceleration detection
function selection
0
0 Deceleration detection function disabled
1
The protective function is activated when the deceleration speed of
the deceleration operation is not normal.
285
A107
Overspeed detection
frequency
*1
9999
0 to 30 Hz
E.MB1 (Brake sequence fault) occurs when the difference between
the detection frequency and output frequency exceeds the setting
value under encoder feedback control.
9999 Overspeed detection disabled
292
F500 Automatic acceleration/
deceleration
0
0 Normal operation
1, 11
Operation with the shortest acceleration/deceleration time. (Refer to
page 209 .)
7 Brake sequence mode 1
8 Brake sequence mode 2
639
A108 Brake opening current
selection
0
0 Brake opening by output current
1 Brake opening by motor torque
640
A109 Brake operation frequency
selection
0
0 Brake closing operation by frequency command
1
Brake closing operation by the actual motor rotation speed (estimated
value)
Pr. Name
Initial
value Setting
range
Description
Mechanical
brake
R/L1
S/L2
T/L3
Motor
MC
STF
RH
RL(BRI)
*1
SD
24VDC
Brake opening request
signal (BOF)
Start signal
Multi-speed signal
Brake opening completion signal
(BRI)
MCCB
Sink logic
Pr.184 = 15
Pr.190 = 20
Power
supply
U
V
W
RUN(BOF)
SE
*2
*3
MC