Inverter Protection; Performing Overheating Protection On Mounted Braking Resistors - Omron SYSDRIVE RV Series User Manual

Inverter Protection

This section explains the functions for protecting the Inverter and the braking resistor.

Performing Overheating Protection on Mounted Braking Resistors

Perform overheating protection on Inverter-mounted braking resistors (Model: ERF-150WJ
When overheating in a mounted braking resistor is detected, an alarm RH (Mounted braking resistor overheat-
ing) is displayed on the Digital Operator, and the motor coasts to a stop.
Related Parameters
Name
Param-
eter
Display
Number
Protect
selection for
internal DB
resistor
L8-01
(Type ERF)
DB Resis-
tor Prot
Multi-function Contact Outputs (H2-01 to H2-03)
Setting
Value
D Braking resistor fault (ON: Resistor overheat or braking transistor fault)
The most likely causes of RH (Mounted braking resistor overheating) being detected are that the deceleration
time is too short or that the motor regeneration energy is too large. In these cases, lengthen the deceleration
time or replace the Braking Resistor Unit with one with a higher breaking capacity.
INFO
Setting
Description
Range
0: Disabled (no overheating
protection)
0 or 1
1: Enabled (overheating
protection)
Function
Control Methods
Change
Factory during
V/f Open
Setting Opera-
V/f with Loop
tion
PG Vector
0 No A A
Control Methods
V/f
Yes

Inverter Protection

).
Regis-
Flux
ter
Vec-
tor
A A 4ADH
Open
V/f Flux
Loop
with Vec-
Vec-
PG tor
tor
Yes Yes Yes
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