Yaskawa V7 Drives - Manual (Page 141)

A6-3
Figure A6-1. Typical Wiring of Braking Resistor
(for 3% Duty Cycle) to Drive
THERMOSTAT
OR OVERLOAD
BRAKING
RESISTOR
(3% DUTY
CYCLE)
SEPARATE CUSTOMER
SUPPLIED ENCLOSURE
AND THERMISTOR
OR OVERLOAD
PART OF CUSTOMER
SUPPLIED EXTERNAL
CIRCUIT
CONTROL
TERMINAL BLOCK
NOTE 2
NOTE 1
NOTES:
(1) Wire in series with any other external fault
N.O. contacts connected to the Drive.
(2) Factory default is terminal S3 programmed
for external fault N.O. contact input (2-wire
control). If S3 has been reprogrammed to
another function, one of the other multi-
function terminals must be programmed
for external fault N.O. contact input.
For 3-wire control, connect to one of the
other multi-function input terminals and
program that terminal for external fault
N.O. contact input.
(3) Either an overload can be used in series with
the Braking resistor or a thermostat can be
configured as shown.
POWER
ON
POWER
OFF
1M
1M
FAULT
CONTACT
RC
RC
120 VAC
THRX
THRX
THRX
THRX
S3
CB
L3
1M
L2
1M
L1
1M
SC
B2
T1
T2
T3
L1(R) L2(S) L3(T) B1
OVERLOAD
NOTE 3
NOTE 3
V7N
T1(U) T2(V) T3(W)