YASKAWA CIMR-JC4A0002BAA Quick Start Manual page 66

Power
supply
Thermal relay switch for
external braking resistor
4.
Follow manufacturer instructions to connect the resistor unit to the drive using proper
wire gauge according to local electrical codes.
Power leads for the remote mount resistors generate high levels of electrical noise;
group these signal leads separately.
5.
Mount the resistor unit on a noncombustible surface. Maintain minimum side and top
clearances according to resistor manufacturer instructions.
WARNING! Fire Hazard. Do not use improper combustible materials. Failure to comply could
result in death or serious injury by fire. Attach the drive or braking resistors to metal or other
noncombustible material.
6.
Reinstall drive covers and resistor covers, if provided.
7.
Set parameter L3-04 = "0" to disable stall prevention during deceleration.
Set parameter L8-01 to "1" to enable overheat protection when using a heatsink-
mounted braking resistor option.
Set L8-01 = "0" for other braking resistor types.
Parameter
L8-01: Internal Dynamic Braking
Resistor Protection Selection
L3-04: Stall Prevention During
Decel
8.
Operate the system and verify the required deceleration rate is obtained during
dynamic braking or stopping.
YASKAWA ELECTRIC TOEP C710606 26B YASKAWA AC Drive – J1000 Quick Start Guide
MCCB
MC
THRX OFF ON MC
SA
MC
THRX
SA
TRX
MC
SA
TRX
MA MC
Fault contact
Figure 3.20 Connecting a Braking Resistor
Table 3.14 Braking Resistor Settings
0: Disabled. The drive will not provide overheat protection.
Supply separate means of overheat protection.
1: Enabled. Braking Resistor is protected from overheat.
0: Stall prevention disabled.
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3.10 Braking Resistor
Thermal
relay
Braking resistor
R/L1 B1 B2
S/L2
U/T1
T/L3
V/T2
W/T3
Drive
Settings
Motor
65
3