Delta VFD-L-I Series, User Manual

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Chapter 2 Installation and Wiring
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VFD-L-I Series
Revision July 2009, SW V1.1 2-9
„
Make sure that the leads are connected correctly and the AC drive is properly grounded.
„
Use ground leads that comply with local regulations and keep them as short as possible
to prevent electric shock or fire.
„
Multiple VFD-L-I units can be installed in one location. All the units should be grounded
directly to a common ground terminal, as shown in the figure below. Ensure there are
no ground loops.
good excellent not allowed
2.4.4 Control Terminals
RA
RC
+10V
AVI
M0
M1
GND
120VAC/DC 28V 3A
Relay Wire gauge: 22-12 AWG
Wire type: Copper only 75℃
Torque: 4 kgf-cm(3.5in-lbf)
Wire gauge: 28-16 AWG
Wire type: Copper only 75℃
Torque: 2 kgf-cm(1.7in-lbf)
Multi-function relay output
Potentiometer power supply
Analog voltage frequency command
Multi-function input terminal
Multi-function input terminal
Digital signal common
Terminal symbols and functions
Terminal
Symbol
Terminal Function
Factory Settings (NPN mode)
ON: Connect to GND
RA
Multi-function Relay output
(N.O.) a
RC Multi-function Relay common
Output every monitor signal, such as in
operation, frequency attained and overload
indications. Refer to Pr.03-03 for multi-function
output terminals.
+10V Potentiometer power supply +10VDC 20mA (variable resistor: 3~5kohm)