Yaskawa VS-626 MC5 - Manual (Page 280)

12.4 Wiring Examples
- 11
12.4.3 Using Two Braking Units in Parallel
5 +15
Braking Unit 2
MCCB
3-phase power
200 to 230 V
50/60 Hz
Motor
IM
M
r Cooling fan
VS-626MC5
Braking Unit
3 4
3
(Ground to 100 : max.)
Thermal protector
1 2
Braking
Resis-
tor Unit
P
1
2
3 4
Thermal switch
B
Thermal switch
6
P
Level
MASTER
SLAVE
Overload relay trip contact of
Braking Resistor Unit
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.
5
Thermal protector
1 2
Braking
Resis-
tor Unit
P
1
2
3 4
B
6
MASTER
SLAVE
R
S
T
MC
U
V
W
R
S
T
© ¨ 3
THRX OFF ON MC
SA
1 2
MC TRX
TRX
20 18
Fault contacts
SA
SA
THRX
MC
© © ¨ ¨ ¨ 0 ¨ 0 © 0 © 0
Forward Run/Stop Forward run command
(forward run when closed)
Reverse Run/Stop Reverse run command
(reverse run when closed)
External fault
18
19
20
External contact
output
12