YASKAWA CIMR-F7A Instruction Manual page 367

Sequence Circuit Configuration
The brake ON/OFF sequence circuit configuration is shown below.
DOWN
HIGH/LOW
Note Design the sequence so that the holding brake contact is open when the sequence operation conditions are satisfied and the contact between M1 and M2
is closed (ON).
Make sure that the holding brake contact is closed when the emergency stop signal or Inverter fault contact output signal is ON.
Also, make sure that the holding brake is released when an up/down command is issued (ON.)
Time Chart
The brake ON/OFF sequence time charts are shown in Figs. 6.82 and 6.83.
Note For variable speed operation by an analog signal, set to b1-01 = 1.
Note For variable speed operation by an analog signal, set to b1-01 = 1.
-170
6
Inverter (Varispeed F7)
Fault contacts
UP
S1
(Forward run)
S2
(Reverse run)
S6
(Multi-step speed reference 2)
SC
Frequency
detection 2, 5 or
During run
Fig 6.81 Brake ON/OFF Sequence Circuit Configuration
OFF
S1-SC
UP
High speed/
OFF
S6-SC
Low speed
Output frequency
0
Frequency detection 2
(H2-01 = 05)
M1-M2
Holding brake
operation
CLOSE
Fig 6.82 Brake ON/OFF Sequence Time Chart (V/f, V/f with PG, open-loop vector)
OFF
S1-SC
UP
High speed/
OFF
S6-SC
Low speed
Output frequency
0
During run 2
(H2-01 = 37)
M1-M2
Holding brake
operation
CLOSE
Fig 6.83 Brake ON/OFF Sequence Time Chart (Flux Vector)
Holding brake
auxiliary relay coil
MA
MB
Sequence
circuit
MC
Energizes the brake when ON
M1 (250 VAC 1 A or less, 30 VDC
1 A or less)
M2
ON
ON
d1-01 (Enabled when b1-01 = 0)
d1-03
L4-01
ON
OPEN
ON
ON
d1-01 (Enabled when b1-01 = 0)
d1-03
ON
OPEN
UP
BR
DOWN
BR
b4-01
Time
DC injection braking
OFF
CLOSE
b2-01
Time
DC injection braking (Zero-speed control)
OFF
CLOSE