Omron SYSDRIVE RX Series User Manual page 186

4-2 Function Mode
Note 2: Even if this function is enabled, an overvoltage trip may occur depending on the deceleration rate and
load condition.
Note 3: When using this function, the Inverter may reduce frequency depending on the moment of inertia of motor
load, and takes a long time to stop.
*1. If the b131 set value is lower than the incoming voltage or equivalent, the motor may not be stopped.
*2. When b130 = 01, PI control works to keep the internal DC voltage constant.
•Though quicker response is expected with a larger proportional gain (b133), control tends to be divergent
and may easily lead to a trip.
•Response also becomes quicker with a shorter integral time (b134), but if too short, the same situation may
occur.
4
<Group C: Multi-function Terminal Function>
The 3G3RX has eight input terminals [S1], [S2], [S3], [S4], [S5], [S6], [S7], and [S8]; five open col-
lector output terminals [P1], [P2], [P3], [P4], and [P5]; one relay output terminal [MA] and [MB] (SP-
DT contact); two analog output terminals [AM] and [AMI]; as well as one digital output terminal [MP].
Multi-function Input Selection
•You can use the following functions by allocating them to any of multi-function inputs S1 to S8.
To allocate the functions, set the following data in C001 to C008. For example, C001 corresponds
to input terminal S1.
•The same two functions cannot be allocated to the multi-function input terminals. If you attempt to
allocate the same two functions to the terminals by mistake, the terminal where you allocated the
function last takes precedence. The previous data is set to "no (no allocation)", and the terminal
function is disabled.
•After allocating functions to terminals S1 to S8, make sure that the function settings have been
stored.
Parameter
Data
No.
C001 to
C008
4-77
Function name
01 RV : Reverse command
02 CF1 : Multi-step speed setting binary 1
03 CF2 : Multi-step speed setting binary 2
04 CF3 : Multi-step speed setting binary 3
05 CF4 : Multi-step speed setting binary 4
06 JG : Jogging
07 DB : External DC injection braking
08 SET : 2nd control
09 2CH : 2-step acceleration/deceleration
11 FRS : Free-run stop
12 EXT : External trip
13 USP : USP function
14 CS : Commercial switch
Reference item
RUN command
Multi-step speed operation function
Multi-step speed operation function
Jogging operation
DC injection braking (external DC
injection braking)
2nd/3rd control function
2-step acceleration/deceleration
function
Free-run stop
External trip
Power recovery restart prevention
function
Commercial switch
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