ELECTRICAL INSTALLATION
Control Circuit Connections
43
Example Configurations
4-20mA Speed Control Signal from an External BMS or PLC:
•
Connect the BMS or PLC output signal to the ACI or AVI1 terminal. The ACI
micro switch should be in the
UP
position. If using the AVI1 terminal, the
AVI1 micro switch should be
DOWN
.
•
Connect the BMS Com wire to the ACM terminal (signal ground).
•
Any shield wire should be connected to Earth ground.
•
ACI Input Select [IO–00]
or
AVI1 Input Select [IO–05]
should be set to the correct
signal type.
•
Auto Speed Reference [SET–07]
should be set to the chosen input.
0-10V Speed Control Signal from an External BMS or PLC:
•
Connect the BMS or PLC output signal to the AVI1, AVI2, or ACI terminal.
The AVI1 micro switch should be in the
UP
position. If using the ACI termi
-
nal, the ACI micro switch should be
DOWN
.
•
Connect the BMS Com wire to the ACM terminal (signal ground).
•
Any shield wire should be connected to Earth ground.
•
AVI1 Input Select [IO–05]
or
ACI Input Select [IO–00]
should be set to
0-10V
.
•
Auto Speed Reference [SET–07]
should be set to the chosen input.
4-20mA Transducer with VFD 10 VDC Power:
•
Connect the transducer positive (Ppower) wire to the VFD +10V terminal.
•
Connect the transducer output (Out) wire to the ACI or AVI1 terminal. The
ACI micro switch should be in the
UP
position. If using the AVI1 terminal,
the AVI1 micro switch should be
DOWN
.
•
Any shield wire should be connected to Earth ground.
•
ACI Input Select [IO–00]
or
AVI1 Input Select [IO–05]
should be set to the correct
signal type.
•
Auto Speed Reference [SET–07]
should be set to
PID Output
,
PID Feedback Source
[SET–18]
should be set to the chosen input, and
PID Feedback Units [SET–19]
should be set to the appropriate
scale (psi, temp, flow, etc.).
4-20mA Transducer with VFD 24 VDC Power:
•
Connect the transducer positive (Power) wire to the VFD +24V terminal.
•
Connect the transducer output (Out) wire to the ACI or AVI1 terminal. The
ACI micro switch should be in the
UP
position. If using the AVI1 terminal,
the AVI1 micro switch should be
DOWN
.
•
Use a jumper wire to connect the ACM and DCM terminals.
•
Any shield wire should be connected to Earth ground.
•
ACI Input Select [IO–00]
or
AVI1 Input Select [IO–05]
should be set to the correct
signal type.
•
Auto Speed Reference [SET–07]
should be set to
PID Output
,
PID Feedback Source [SET–18]
should be set to the cho
-
sen input, and
PID Feedback Units [SET–19]
should be set to the appropriate scale (psi, temp, flow, etc.).
Содержание Cerus X-Drive
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