WEG bacnet CFW701 User Manual - page 19
Inverter Programming
CFW701 | 19
Bit 5
Second ramp
0: The drive uses the first ramp values, programmed in P0100 and P0101, as the motor acceleration
and deceleration ramp times.
1: The drive is configured to use the second ramp values, programmed in P0102 and P0103, as the
motor acceleration and deceleration ramp times.
This bit is mapped in the object BV21
Bit 6
Quick stop
0: It does not execute the quick stop command.
1: It executes the quick stop command.
Note: This function is not allowed with control types (P0202) V/f or VVW.
This bit is mapped in the object BV22
Bit 7
Fault reset
0: No function.
1: If in a fault condition, then it executes the reset.
This bit is mapped in the object BV23
Bits 8 to 12
Reserved.
Bit 13
Main PID controller
0: Automatic.
1: Manual.
This bit is mapped in the object BV28
Bit 14
External PID controller 1
0: Automatic.
1: Manual.
This bit is mapped in the object BV29
Bit 15
External PID controller 2
0: Automatic.
1: Manual.
This bit is mapped in the object BV30
P0683 – SERIAL SPEED REFERENCE
Range:
-32768 to 32767
Default: 0
Properties:
-
Access groups via HMI:
NET
Description:
It allows programming the motor speed reference via the BACnet interface. This parameter can only be changed
via serial interface. For the other sources (HMI, etc.) it behaves like a read-only parameter.
In order that the reference written in this parameter be used, it is necessary that the drive be programmed to
use the speed reference via serial. This programming is achieved by means of parameters P0221 and P0222.
This word uses a 13-bit resolution with signal to represent the motor synchronous speed.
P0683 = 0000h (0 decimal)
→ speed reference = 0
P0683 = 2000h (8192 decimal)
→ speed reference = synchronous speed
Intermediate or higher reference values can be programmed by using this scale. E.g. for a 4 pole motor and
1800 rpm of synchronous speed, to obtain a speed reference of 900 rpm one must calculate:
1800 rpm => 8192
900 rpm => 13 bit reference
13 bit reference = 900
× 8192
1800
13 bit reference = 4096
This parameter also accepts negative values to revert the motor speed direction. The reference speed direction,
however, depends also on the control word - P0682 - bit 2 setting:
Bit 2 = 1 and P0683 > 0: reference for forward direction
Bit 2 = 1 and P0683
Bit 2 = 0 and P0683 > 0: reference for reverse direction
Bit 2 = 0 and P0683
=> Value corresponding to 900 rpm in a 13 bit scale