
Wiring Examples
10-
25
10
Using a Braking Unit and Braking Resistor Unit
When using a Braking Unit and Braking Resistor Unit, create a sequence to detect overheating of the braking
resistor and cut off the power supply to the Inverter.
CIMR-G7A2018, -G7A2022 (200 V Class Inverters of 18.5 kW, 22 kW)
* 1. Remove the short-circuit bar (standard equipment) from between
1 and
2 before you connect a DC Reactor (optional).
* 2. Disable the stall prevention during deceleration (set constant L3-04 to 0) when using a Braking Resistor Unit. If this user constant is not
changed to disable stall prevention, the system may not stop in the set deceleration time.
Fig 10.14
THRX
THRX
1
2
TRX
TRX
MB
MC
2MCCB
MA MC
OFF
ON
MC
MC
SA
SA
SA
Fault contacts
Braking Resistor Unit
(overheat contacts)
3-phase power supply,
200 to 240 V
at 50/60 Hz
A sequence is required to turn
OFF the power supply for the
thermal protector trip contacts of
the Braking Resistor Unit.
DC Reactor to
improve input
power factor
(Optional)
Short-circuit bar
Ground Fault Interrupter or Molded-case Circuit Breaker
Braking Unit
(Optional)
Inverter
Motor
Level
detector
Braking Resistor Unit
*2
(Optional)
Braking Resistor overheating contacts
(Thermal protector trip contacts)
Ground to 100
Ω
max.
Forward Run/Stop
Reverse Run/Stop
Braking Unit
External fault
Forward Run Command (forward run when ON)
Reverse Run Command (reverse run when ON)
R/L1
S/L2
T/L3
U/T1
V/T2
W/T3
Forward Run/Stop
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TOE-S616-60.1.book 25 ページ 2017年8月4日 金曜日 午後3時41分