YASKAWA G7 Series Technical Manual page 53

Connecting the Braking Resistor (ERF)
A Braking Resistor that mounts to the Drive can be used with 200-240 V and 380-480 V Class Drives with
outputs from 0.4 to 3.7 kW.
Connect the braking resistor as shown in Fig 2.12.
L8-01 (Protect selection for internal DB resistor)
L3-04 (Stall prevention selection during deceleration)
(Select either one of them.)
The braking resistor connection terminals are B1 and B2. Do not connect to any other terminals. Connecting
to any terminals other than B1 or B2 can cause the resistor to overheat, resulting in damage to the
equipment.
IMPORTANT
Connecting the Braking Resistor Unit (LKEB) and Braking Unit (CDBR)
Use the following settings when using a Braking Resistor Unit. Refer to
connection methods for a Braking Resistor Unit.
A Braking Resistor that mounts to the Drive can also be used with Drives with outputs from 0.4 to 3.7 kW.
L8-01 (Protect selection for internal DB resistor)
L3-04 (Stall prevention selection during deceleration)
(Select either one of them.)
L8-01 is used when a braking resistor without thermal overload relay trip contacts (ERF type mounted to
Drive) is connected.
The Braking Resistor Unit cannot be used and the deceleration time cannot be shortened by the Drive if L3-04
is set to 1 (i.e., if stall prevention is enabled for deceleration).
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Table 2.7
1 (Enables overheat protection)
0 (Disables stall prevention function)
3 (Enables stall prevention function with braking resistor)
Drive
Fig 2.12 Connecting the Braking Resistor
Table 2.8
0 (Disables overheat protection)
0 (Disables stall prevention function)
3 (Enables stall prevention function with braking resistor)
Wiring Main Circuit Terminals
Braking resistor
User Parameters on page
10-18 for
21
2-