Limit Switch Stop Mode; Supply Loss Mode; Start/Stop Logic Select - Emerson Unidrive M200 Parameter Reference Manual

Parameter

06.002 Limit Switch Stop Mode

Short description Defines the behaviour of the drive when limit switch is active
Mode Open‑loop
Minimum 0
Default 1
Type 8 Bit User Save
Display Format Standard
Coding RW, TE
Value Text
0 Stop
1 rp
If Limit Switch Stop Mode (06.002) = 0 then when Limit switch active (10.066) is activated the motor is stopped without ramps (under dc injection control).
If Limit Switch Stop Mode (06.002) = 1 then the motor is stopped with the currently selected ramp rate.
Parameter

06.003 Supply Loss Mode

Short description Defines the behaviour of the drive when the supply voltage is reduced
Mode Open‑loop
Minimum 0
Default 0
Type 8 Bit User Save
Display Format Standard
Coding RW, TE
Value Text
0 diS
1 rP.Stop
2 ridE.th
3 Lt.Stop
If Supply Loss Mode (06.003) > 0 and the D.c. Link Voltage (05.005) falls below Supply Loss Detection Level (06.048) then the supply loss condition is detected. If Supply Loss Mode (06.003) =
2 (ride through) the supply loss system will attempt to control the D.c. Link Voltage (05.005) to a level just below the Supply Loss Detection Level (06.048) using a d.c. link voltage controller
which provides a torque producing current reference to the current controllers to regulate the power flow into the d.c. link. Therefore Current Controller Kp Gain (04.013) and
Current Controller Ki Gain (04.014) must be set up correctly for the application. When the supply is reapplied it must be at a level that is high enough for the D.c. Link Voltage (05.005) to rise
above Supply Loss Detection Level (06.048) plus a hysteresis margin. This will disable the supply loss controller and the drive will return to normal operation. The table below gives the d.c. link
voltage levels used by the supply loss detection system for different drive voltage ratings.
Voltage level
Supply loss d.c. link voltage control level
Voltage above which supply loss detection changes
from active to inactive
0: Disable
No supply loss detection is provided by monitoring the D.c. Link Voltage (05.005). The drive will continue to operate normally unless the under voltage condition is detected.
1: Ramp Stop
The action taken by the drive is the same as for ride through mode, except that the ramp down rate is at least as fast as the currently selected deceleration ramp and the drive will continue to
decelerate and stop even if the supply is re-applied. If Stop Mode (06.001) = 3 or 4 (i.e. d.c. injection) the drive will use ramp mode to stop on loss of the supply. If Stop Mode (06.001) = 2 (i.e.
ramp stop followed by injection) the drive will ramp to a stop and then attempt to apply d.c. injection. The ramp down rate is at least as fast as the currently selected deceleration ramp and the
drive will continue to decelerate and stop even if the supply is re-applied. Once the sequencer state machine has reached the DISABLE state the drive can restart provided the necessary
controls are still active to initiate a start.
2: Ride through
The drive attempts to control the d.c. link voltage to take energy from the motor and load inertia to ride through the Supply loss condition for as long as possible.
Parameter

06.004 Start/Stop Logic Select

Short description Used to select the logic function of the drive input terminals
Mode Open‑loop
Minimum 0
Default 0
Type 8 Bit User Save
Display Format Standard
Coding RW
This parameter changes the functions of the input terminals which are normally associated with the enabling, starting and stopping the drive. This also writes to Enable Sequencer Latching
(06.040) to enable and disable the input latches.
Start/Stop Logic Select Digital I/O 2
(06.004) Terminal 11
0 (default) User Enable
1 Not Stop
2 User Enable
3 Not Stop
4 Not Stop
5 User programmable
6 User programmable
86
Maximum
Units
Update Rate
Decimal Places
Maximum
Units
Update Rate
Decimal Places
Description
Disabled
Ramp Stop
Ride through
Limit Stop
200V
Supply Loss Detection Level
(06.048) - 10V
Supply Loss Detection Level
(06.048) +10V
Maximum
Units
Update Rate
Decimal Places
(M100 - M201) Digital I/O 2 (M300- M400)
Terminal 11
Undefined
Not Stop
Undefined
Not Stop
Not Stop
User programmable
User programmable
1
Background read
0
3
Background read
0
400V 575V
Supply Loss Detection Level Supply Loss Detection Level
(06.048) - 20V (06.048) - 25V
Supply Loss Detection Level Supply Loss Detection Level
(06.048) + 15V (06.048) + 50V
6
Actioned on exit of edit mode and on
drive reset
0
Digital Input 3
Terminal 12
Run Forward
Run Forward
Run
Run
Run
Run Forward
User programmable
690V
Supply Loss Detection Level
(06.048) - 25V
Supply Loss Detection Level
(06.048) + 50V
Digital Input 4 Enable Sequencer Latching
Terminal 13 (06.040)
Run Reverse 0 (non-latching)
Run Reverse 1 (latching)
Reverse 0 (non-latching)
Reverse 1 (latching)
Jog Forward 1 (latching)
Run Reverse 0 (non-latching)
User programmable User programmable
Unidrive M200 Parameter Reference Guide
Issue: 01.05.00.10