Parameter
structure
Keypad and
display
Parameter x.00
Parameter description
format
Advanced parameter
descriptions
Serial comms
protocol
Performance
Menu 11
Mentor MP Advanced User Guide 147
Issue Number: 4 www.controltechniques.com
Note that the drive holds its own transmitters active for up to 1 ms after it has transmitted data before switching to the receive mode, the host should
not send any data during this time.
Modbus RTU uses a silent period detection system to detect the end of a message. This silent period is either the length of time for 3.5 characters at
the present baud rate or the length of time set in Pr 11.26, whichever is the longest.
The drive software version consists of three numbers, xx.yy.zz. Pr 11.29 = {di14, 0.49}) displays xx.yy and zz is displayed in Pr 11.34.
Where:
xx specifies a change that affects hardware compatibility
yy specifies a change that affects product documentation
zz specifies a change that does not affect the product documentation.
If any number other than 0 is programmed into this parameter user security is applied so that no parameters except (Pr 11.44 = {SE14, 0.35}) can be
adjusted with the LED keypad. When this parameter is read via an LED keypad and security is locked it appears as zero. The security code can be
modified via serial comms etc. by setting this parameter to the required value, setting (Pr 11.44 = {SE14, 0.35}) to 2 and initiating a reset by setting
Pr 10.38 to 100. However security can only be cleared via the LED keypad.
This parameter indicates the continuous current rating of the drive. See Pr 11.55 for more details.
This parameter has three possible values (480 V, 575 V, 690 V) and indicates the voltage rating of the drive.
Pr 11.26 Action
0 The transmit buffers are turned on and data transmission begins immediately
1 The transmit buffers are turned on and data transmission begins after 1 ms
2 or more
The transmit buffers are turned on after an additional delay of (Pr 11.26 -1) ms and data
transmission begins after a further 1 ms delay
11.29
{di14, 0.49}
Software version
Coding
BitSPFIDETEVMDPNDRANCNVPTUSRWBUPS
21 1 1 1
Range 1.00 to 99.99
Update rate Write at power-up
11.30 User security code
Coding
BitSPFIDETEVMDPNDRANCNVPTUSRWBUPS
1 11111
Range 0 to 999
Default 0
Update rate Background read
11.32 Current rating
Coding
BitSPFIDETEVMDPNDRANCNVPTUSRWBUPS
11 1 1 1
Range 0.00 to 10000.0 A
Update rate Write at power-up
11.33 Drive voltage rating
Coding BitSPFIDETEVMDPNDRANCNVPTUSRWBUPS
11111
Range 0 (480 V) , 1 (575 V), 2 (690 V)
Update rate Write at power-up
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