Johnson Controls VS3 Series User Manual

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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
P2.2.22 207 Preset Speed B2 1,2,3 RW
Use this parameter selecting the of the digital input for an external speed setpoint desired. Validating
3 digital inputs will allow for 7 preset speeds to be obtained. When switching between inputs it will
follow the acceleration and deceleration time. When all the inputs are set to Normally Open none of
the preset speeds will be enabled and the output will follow the control place reference command. If
the function is set for Normally Closed the drive will follow the preset speed assigned to the inputs
enabled. When assigned to one of the DIGIN on the control board or an installed option card it is
looking for a high input to enable that preset. Can be set to DigiIN:X indicates on board terminal inputs,
DigiIN:A:IOX:X indicates optional board inputs in A slot, DigiIN:B:IOX:X indicates optional board inputs in
B slot, or Timer Channel X. RO X Function allows for having an input turn on without having to hard wire
it to the physical relay output.
Figure 36. Activation of fixed frequencies
f
(Hz)
DI3
DI4
DI1
15 Hz
10 Hz
5 Hz
0 Hz
B0 B0B0
B1B1
FWD
t (s)
P2.2.23 199 Jog Enable 1,2,3 RW
Use this parameter for selecting an external input for enabling the jog frequency reference and starts
the drive to slowly advance the system. When this function is set for Normally Open the drive will not
follow the jog enable speed. If the function is set for Normally Close then the output will be activated
and run at the Jog Frequency. Can be set to DigiIN:X indicates on board terminal inputs, DigiIN:A:IOX:X
indicates optional board inputs in A slot, DigiIN:B:IOX:X indicates optional board inputs in B slot, or
Timer Channel X. RO X Function allows for having an input turn on without having to hard wire it to the
physical relay output.
Closed contact: drive is under jog mode.
P2.2.24 195 Accel/Decel Time Set 1,2,3 RW
Use this parameter for selecting the external digital input used to select between accel/decel time 1
and accel/decel time 2. When this function is set for Normally Open the Accel/Decel time set will follow
time 1 always, when set for Normally Closed it will follow the 2nd Accel/Decel time always. Assigning
it to an input will allow for the input to control this. Can be set to DigiIN:X indicates on board terminal
inputs, DigiIN:A:IOX:X indicates optional board inputs in A slot, DigiIN:B:IOX:X indicates optional board
inputs in B slot, or Timer Channel X. RO X Function allows for having an input turn on without having to
hard wire it to the physical relay output.
Closed contact = 2nd set of acc/dec time applied.
Open contact = 1st set of acc/dec time applied.
P2.2.25 201 Accel/Decel Prohibit 1,2,3 RW
Use this parameter for selecting an external input used to disables the ability to change speed, even if
the reference signal changes if this input is enabled the output stays at the value it was at before the
input was enabled. When this functions is set for Normally Open the Accel/Decel will be allowed via the
desired control source, when is set for Normally Closed the drive will prohibit changing of speed from
any control source. Can be set to DigiIN:X indicates on board terminal inputs, DigiIN:A:IOX:X indicates
optional board inputs in A slot, DigiIN:B:IOX:X indicates optional board inputs in B slot, or
Timer Channel X. RO X Function allows for having an input turn on without having to hard wire it to
the physical relay output.
Closed contact: drive output frequency cannot rise or fall, it keeps on current output.

Johnson Controls VS3 Series Specifications

General

Brand	Johnson Controls
Model	VS3 Series
Category	Inverter
Language	English