Emerson Mentor MP, Руководство для продвинутых пользователей

Страница: 107 / 222

Menu 6
Parameter
Parameter description
protocol
Performance
In normal operation the sequencer has been designed to operate with Run forward / Run reverse controls, or with a Run control and a forward
Digital inputs connected to limit switches should be routed to these parameters if fast stopping is required at a limit. The drive will respond in 750

s
structure
Keypad and
format
Advanced parameter
descriptions
Serial comms
reverse selector. If Run forwards / Run reverse control is required then bits Pr 6.30 and Pr 6.32 should be used to control the drive (digital inputs
should not be routed to bits Pr 6.33 and Pr 6.34). If Run control with a forward reverse selector is required then bits Pr 6.33 and Pr 6.34 should be
used to control the drive (digital inputs should not be routed to bits Pr 6.30 and Pr 6.32).
The Run forward and Run reverse bits can be made latching by setting bit Pr 6.40. The Not stop bit (Pr 6.39) should be one to allow the sequencing
bit to be latched. If the Not stop bit is zero all latches are cleared and held at zero. The jog or jog reverse sequencing bits can also cause the drive to
run provided the motor is stopped when these bits are activated and the normal run sequencing bits are not providing a run signal.
(500

s digital input filter delay + 250

s software delay) and stop the motor with a zero deceleration ramp rate (i.e. in current limit).
The limit switches are direction dependant so that the motor can rotate in a direction that allows the system to move away from the limit switch.
Pre-ramp rehard speed reference > 0 rpm Forward limit switch active
Pre-ramp rehard speed reference < 0 rpm Reverse limit switch active
Pre-ramp rehard speed reference = 0 rpm Both limit switches active
104
Mentor MP Advanced User Guide
www.onxcontrol.com Issue Number: 4
6.36 Reverse limit switch
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1 1 1
Default 0
Update rate 250

s read
6.39 Sequencing bit: Not stop
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1 1 1
Default 0
Update rate 4 ms read
6.40 Enable sequencer latching
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1 1 1
Default 0
Update rate 4 ms read
6.35 Forward limit switch
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1 1 1
Default 0
Update rate 250

s read
6.37 Sequencing bit: Jog reverse
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1 1 1
Default 0
Update rate 4 ms read
6.34 Sequencing bit: Run
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1 1 1
Default 0
Update rate 4 ms read