Configurable logic
Configurable Logic is a powerful tool since it provides
the user with the means to configure general logic
equations. These logic equations can be used to perform
discrete SCADA functions, modify control function, or add
communications data points. Configurable Logic must
be configured via the digital communications software,
ProView NXG software.
Control functions codes can be used to enable configurable
logic. See the information contained in
for FC 700-
703 more information on this functionality.
See document
MN225015EN CL-7 Regulator Control
ProView NXG Software Programming Guide
for more
information on programming configurable logic.
Figure 51 . Optional I/O contact module connector
Auxiliary input and output
Up to two auxiliary I/O Modules can be added as options to
the CL-7 control (
). The modules enable connection
of contact-type input devices (switches, relays) and discrete
indicating devices (relays, LEDs, lamps) to the control to
effect local discrete inputs and outputs. The I/O module
accessories can be used to supplement normal local control
and status indicators.
Each contact I/O module option contains four (4) inputs
and four (4) outputs. When added to a control, the modules
require configuration to assign functionality to the input
and output contacts. The module must also be mapped for
the control to recognize it. Use ProView NXG software to
configure logic and map the module. Refer to document
MN225015EN, CL-7 Regulator Control ProView NXG
Software Programming Guide
for additional information on
configuring the control and control logic.
The user can program the CL-7 control to use the discrete
input states, as well as other internal logic conditions, to
determine the operation of the control. Likewise, the user
can program the CL-7 control to toggle the discrete output
states based on internal control logic.
The input contacts can be activate using an ac or dc voltage;
see
, Contact I/O Option Module Input Ratings
for more information on input activation limits. A whetting
voltage can be supplied from the control; the whetting
voltage connection can be made at terminal V9 on the
lower terminal board on the back panel. See
for
connection recommendations.
Output contacts 1 and 2 on the Contact I/O outputs are
Form A (single-pole normally open) relay contacts; output
contacts 3 and 4 are Form C (single-pole, double throw NO/
NC) relay contacts. All four outputs are non-latching type.
Refer to
for output fusing recommendations.
ote:
N
Latching is defined as an output that retains its
status when control power is removed. Non-latching
is defined as an output that returns to a default
status when control power is removed.
ote:
N
Following a firmware upgrade the Contact I/O
module output relays will revert to the de-energized
state. Additionally, the Contact I/O module may need
to be remapped.
NOTICE
Equipment damage; misoperation . External leads must
be shielded and the shield must be grounded at both
ends . Terminate each lead with a 320 Vac, 160 Joules
metal oxide varistor (MOV), or equivalent, at the remote
end . Attach MOVs between the leads and ground .
Failure to properly shield and protect leads can result in
equipment damage and/or unintentional operation .
149
INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS
MN225003EN April 2018
CL-7 Voltage Regulator Control
