Emerson Vilter MicroVission - Table 2-1. Multi-IO Board (Digital I;O)

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Section 2 • Hardware Architecture
MicroVission Controller • Operation and Service Manual • Emerson • 35391MV 1.3
Remote Ready Output
• This output is energized when the MicroVission pan-
el is enabled for Direct I/O control. This output will
be de-energized in any of these cases:
• If there is a warning/trip/inhibit condition
present in the compressor
• if there is still Anti-Recycle Time present
• if the compressor is placed in the manual stop
position
Setpoint 1/2 Input
• This input will be monitored when I/O Based Setpoint
Control is Enabled in Compressor Control Screen.
When this input is de-energized, the MicroVission
will use Setpoint 1 as Control Setpoint for modu-
lating the compressor capacity. When this input is
energized, the MicroVission will use Setpoint 2 as
Control Setpoint for modulating the compressor
capacity. For using Setpoint 2, the operator should
make sure that No. of Controllers is set to 2 in
Conguration screen.
Remote Decrease Input
• This input will be monitored when the MicroVission
panel is enabled for Direct I/O control. When this in-
put is energized, the MicroVission will unload com-
pressor by one step.
Remote Increase Input
• This input will be monitored when the MicroVission
panel is enabled for Direct I/O control. When this
input is energized, the MicroVission will load com-
pressor by one step.
Remote Start/Stop Input
• This input will be monitored when the MicroVission
panel is enabled for Direct I/O control or if Run
Permissive option is enabled. When this input is en-
ergized, the compressor will be allowed to start in
selected run mode. If the compressor is running and
this input is found de-energized, the compressor will
be stopped and the compressor will have to wait for
next start until this input gets energized.
Low Oil Level Input
• This input must be energized for the compressor to
operate. If this input gets de-energized, the com-
pressor will be stopped and issue a Low Oil Level
trip provided Oil Level Trip option is enabled in
Conguration screen.
High Level Shutdown Input:
• The MicroVission monitors this digital input to
check whether the power is removed from the input
module during compressor start. This input must
be energized for the compressor to operate. If de-
energized, the compressor will shut down and issue
a High Level Shutdown trip.
Table 2-1. Multi-IO Board (Digital I/O)
Connector on Mul-IO
Board
I/O # Descripon Channel Type
X1 – 1 1 Oil Return Solenoid OUTPUT
X1 – 2 2 Unloader #4 OUTPUT
X1 – 3 3 Unloader #3 OUTPUT
X1 – 4 4 Unloader #2 OUTPUT
X2 – 1 5 Unloader #1 OUTPUT
X2 – 2 6 Trip OUTPUT
X2 – 3 7 Oil Crank Case Heater OUTPUT
X2 – 4 8 Compressor Start OUTPUT
X3 – 1 9 Remote Ready OUTPUT
X3 – 2 10 Setpoint 1/2 INPUT
X3 – 3 11 Remote Decrease INPUT
X3 – 4 12 Remote Increase INPUT
X4 – 1 13 Remote Start/ Stop INPUT
X4 – 2 14 Low Oil Level INPUT
X4 – 3 15 High Level Shutdown INPUT
X4 – 4 16 Compressor Motor Auxiliary INPUT