Optidrive VTC – User Guide
18
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Par.
Description
Range
Units
Default
Explanation
P2-17
Start Mode Select
to
-
Edge-r : Following Power on or reset, the drive
will not start if Digital Input 1 remains closed.
The Input must be closed following a power on
or reset to start the drive.
Auto-0 : Following a Power On or Reset, the
drive will automatically start if Digital Input 1 is
closed.
Auto 1 to 5 : Following a Fault, the drive will
make up to 5 attempts to restart at 20 second
intervals. The drive must be powered down to
reset the counter
P2-18
Spin Start Enable
0 : Disabled
1 : Enabled
-
1 : Enabled
When enabled, on start up the drive will
attempt to determine if the motor is already
rotating, and will begin to control the motor
from its current speed. A short delay may be
observed when starting motors which are not
turning
P2-19
Keypad Restart Mode
0 : Minimum Speed, Edge-r
1 : Previous Speed, Edge-r
2 : Minimum Speed, Auto-r
3: Previous Speed, Auto-r
-
1
Active when P1-12 = 1 or 2
0 : Following a stop and restart, the drive will
run at minimum speed
1 : Following a stop and restart, the drive will
run at the last setpoint speed
2 : As per setting 0, except that the Run
command will be determined by the status of
Digital Input 1, and the user is not required to
press the keypad start button
3 : As per setting 1, except that the Run
command will be determined by the status of
Digital Input 1, and the user is not required to
press the keypad start button
P2-20
Standby Mode
0.0 : Disabled
0.1 to 60.0
seconds
0.0
When P2-20 >0, the drive enters standby mode
if the minimum speed is maintained for the
time period set in P2-20
P2-21
Display Scaling Factor
0.000 to 30.000
-
0.000
Disabled if P2-21 is set to 0.
If P2-21 is set >0, the variable selected in P2-22
is multiplied by the factor entered in P2-21, and
displayed whilst the drive is running
P2-22
Display Scaling Source
0 : 2
nd
Analog Input
1 : Motor Speed
2 : Motor Current
-
0
P2-23
Brake Circuit Enable
0 : Disabled
1: Enabled, Low Duty
2: Enabled, High Duty
3 : Enabled, No Protection
-
0
Enables the internal brake chopper on Size 2
and above drives. Settings 1 and 2 provide
software monitoring of the braking power
consumption. Setting 3 disables the protection,
and externally monitoring must be used
P2-24
Effective Switching
Frequency
4 to 16 / 24 / 32
Drive Power Rating Dependent
kHz
16
8
4
Effective power stage switching frequency.
Higher frequencies reduce the audible ‘ringing’
noise from the motor, and improve the output
current waveform, at the expense of increased
drive losses
P2-25
2
nd
Deceleration Ramp
time
0.0 to 3000.0
seconds
0.0
Deceleration 2
nd
ramp down time
Selected Automatically on mains power loss if
P1-05 = 2
Can also be selected by digital inputs,
dependent on P2-01 setting.
When set to 0, the drive decelerates as quickly
as possible, whilst preventing an overvoltage
trip
P2-26
Modbus Communication
Baud Rate
t9.6, t19.2, t38.4, t57.6, t115.2
r9.6, r19.2, r38.4, r57.6, r115.2
kbaud
t115.2
Modbus RTU serial data link communication
Baud Rate. A‘t’ Prefix indicates the drive will
trip if communication with the network master
is lost, after a preset time period. An ‘r’ Prefix
indicates that the Optidrive will Ramp to stop in
the event of a loss of communication with the
network master, after a preset time period.
P2-27
Drive Communication
Address
0: Disabled
1 to 63
-
1
Sets the communication address for the drive
when connected on an Optibus Network
