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Appendix A—Description of parameters
VARIABLE SPEED DRIVE SERIES III LIT-12012999—June 2018 www.johnsoncontrols.com
Code Modbus ID Parameter Application RO/RW
P13.1.7 624 Password 1,2,3 RW
Use this parameter to setup a password to protected against unauthorized changes. When the password
function is enabled, the user will be prompted to enter a password before application changes,
parameter value changes, or password changes.
By default, the password function is not in use. If you want to activate the password, change the value
of this parameter to any number between 1 and 9999.
To deactivate the password, reset the parameter value to 0.
P13.1.8 625 Parameter Lock 1,2,3 RW
Use this parameter to prevent user from changing parameters. User has to come to thie parameter to
allow changing. When the parameter lock is activated the text *locked* will appear on the display if you
try to edit a parameter value.
Note: This function does not prevent unauthorized editing of parameter values.
P13.1.9 627 Multimonitor Set 1,2,3 RW
Use this parameter lock in the values set for the mult-monitor page and not allow changing unless
re enabled.
P13.1.10 628 Default Page 1,2,3 RW
This parameter sets the view to which the display automatically moves as the Timeout Time expires or
when the keypad power is switched on.
If the Default Page value is 0, the function is not activated, i.e., the last displayed page remains on the
keypad display.
P13.1.11 629 Timeout Time 1,2,3 RW
Use this parameter to set the time after which the keypad display returns to the Default Page, if no
keypad keys are pressed.
Note: If the Default Page value is 0 the Timeout Time setting has no effect.
P13.1.12 630 Contrast Adjust 1,2,3 RW
Use this parameter to adjust the display by changing the contrast.
P13.1.13 631 Backlight Time 1,2,3 RW
Use this parameter to set the time to illuminate the display.
P13.1.14 632 Fan Control 1,2,3 RW
This function allows you to control the drives cooling fan. You can set the fan to run:
0 = Continuous—fan runs continuously.
1 = Temperature—based on the temperature of the unit. The fan is switched on automatically when
the heat sink temperature reaches 60°C. The fan receives a stop command when the heat sink
temperature falls to 55°C. The fan runs for about a minute after receiving the stop command or
switching on the power, as well as after changing the value from “Continuous” to “Temperature.”
2 = Run Follow —after power up, the fan is stopped until the run command is given and then fan runs
continuously. This is mainly made for common DC-bus systems to prevent cooling fans to load
charging resistors on power up moment.
3 = Calculate IGBT Temp—starting of cooling fan is based on calculated IGBT temperature. When IGBT
temp = 40°C, fan starts and when temp falls down to 30°C, fan stops.
P13.1.15 633 Keypad ACK Timeout 1,2,3 RW
This function allows the user to change the timeout of the Keypad acknowledgement time. This is the
communication performed between the control module and the keypad.
This would be adjusted when using long communication cables between drive and a keypad to delay
message timeouts.
Example:
Transfer delay between the frequency converter and the PC = 600 ms
• The value of HMI Acknowledge Timeout is set to 1200 ms (2 x 600, sending delay + receiving delay)
The corresponding setting shall be entered in the [Misc]-part of the file.
• It must also be considered that intervals shorter than the HMI Acknowledge Timeout time cannot be
used in frequency converter drive monitoring.
P13.1.16 634 Keypad Retry Number 1,2,3 RW
With this parameter you can set the number of times the drive will try to receive acknowledgement
when it has not been received within the acknowledgement time (HMI Acknowledge Timeout) or if the
received acknowledgement is faulty.
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