Appendix – Yaskawa VS-626 MC5 User Manual
Page 279
Appendix
12.4.2 Using a Braking Unit and Braking Resistor Unit
- 10
CIMR-MC5A4018 to -MC5A4045 (400 V class Inverters of 18.5 to 45 kW)
460/440/415/
400/380V
MCCB
3-phase power
380 to 460 V
50/60 Hz
400/200 V
Braking Unit
3
4
3
(Ground to 10
:
max.)
Motor
IM
VS-626MC5
M
Cooling fan
Short-circuit bar
(Standard)
Braking Unit
(Optional)
P
B
Braking Resistor Unit
(Optional)
1
2
Braking Resistor overheating contact
(Thermal protector trip contacts)
Level
detector
3
4
A sequence is required to turn
OFF the power supply for the
thermal overload relay trip con-
tacts of the Braking Resistor Unit.
Disable stall prevention during deceleration by setting L3-04 to “0” or “3” when using a
Braking Resistor Unit. The motor may not stop within the deceleration time if this setting is
not changed.
R
S
T
MC
THRX
OFF
ON
MC
SA
Overload relay trip contact
of Braking Resistor Unit
1
2
MC
TRX
TRX
20 18
Fault contacts
SA
SA
THRX
MC
U
V
W
R
S
T
r
©
¨
1
¨
2
¨
3
¨
¨
0
©
©
0
Forward Run/Stop
Forward run command
(forward run when closed)
Reverse Run/Stop
Reverse run command
(reverse run when closed)
External fault
Voltage
setting
18
19
20
External contact
output
1
2
12