RM5G/5P
U
V
W
PE
IM
R
S
T
R
S
T
MC
AC220V
MC
P
N
COM
RB2
RB1
P
N
P
N
RB2
RB1
DBU5
RM5G/5P
R
S
T
U
V
W
PE
IM
P
N
MC
Ta2
Tc2
DC24V
DC0V
OHD3-90B
RELAY
RELAY
OFF
AC220V
MC
ON
MC
R
S
T
AC220V
(2)Connect
D.B. unit
Terminals of m
a
in Circut
Induction motor
Induction motor
Grounding
Grounding
Thermal Relay(OHD3-90B)
Thermal Relay(OHD3-90B)
(Diagram
3
)
(Diagram
4
)
X5
(External fault command)
Terminals of control Circut
3-phase power source
50/60Hz
To avoid braking resistor over heat causing accident, strongly recommand to
install thermal relay for protection.
The wire diagram are as above diagram
3
, diagram
4
.
Diagram
3
: Using
thermal
realy to control magnetic contactor indi
r
ectly, when braking resistor
is over
heat, inhibit the magnetic contactor.
Diagram
4
: When the power source of inverter is controlled by magnetic contactor indi
r
ectly,
Using thermal relay to control magnetic contactor
indirectly
, when braking resistor
is over
heat, inhibit the magnetic contactor.
APPENDIX C
- 89 -