Control Circuit Terminal Functions - Omron VARISPEED L7 Manual

Control Circuit Terminal Functions

The functions of the control circuit terminals are shown in
rect purposes.
Type No.
S1
S2
2
S3
S4
Digi-
S5
tal
input
S6
signals
S7
BB
BB1
SC
+V
Ana-
log
input A1
signals
AC
E(G)
M1
M2
M3
M4
Digi-
tal
M5
output
signals
M6
MA
MB
MC
*1. This terminal is available on inverters with hardware SPEC B only. (
hardware version).
*2. Do not use this power supply for supplying any external equipment.
*3. When driving a reactive load, such as a relay coil with DC power supply, always insert a flywheel diode as shown in
18
2-
Table 2.9 Control Circuit Terminals with default settings
Signal Name
Forward run/stop command
Reverse run/stop command
Nominal speed
Inspection Run
Intermediate speed
Leveling speed
Not used
Hardware baseblock
*1
Hardware baseblock 1
Digital input common
*2
15 V power supply
Frequency reference
Analog reference neutral
Shield wire, optional ground line
connection point
Brake command
(1NO contact)
Contactor Control
(1NO contact)
Inverter Ready
(1NO contact)
Fault output signal (SPDT)
(1 Change over contact)
Fig 2.11 Flywheel Diode Connection
Coil
External power: 30
VDC max.
Table 2.9. Use the appropriate terminals for the cor-
Function
Forward run when ON; stopped when OFF.
Reverse run when ON; stopped when OFF.
Nominal speed when ON.
Inspection RUN when ON.
Functions are
Intermediate speed when
selected by setting
ON.
H1-01 to H1-05.
Leveling speed when ON.
–
–
–
–
15 V power supply for analog references
0 to +10 V/100%
–
–
Brake command when ON.
Multi-function con-
Contactor Control when ON
tact outputs
Inverter Ready when ON.
Fault when CLOSED across MA and MC
Fault when OPEN across MB and MC
page 1-4, Inverter Specifications
Flywheel diode
1 A max.
Signal Level
24 VDC, 8 mA
Photo-coupler
–
–
–
15 V
(Max. current: 20 mA)
0 to +10 V(20 kΩ)
–
–
Relay contacts
Contact capacity:
1 A max. at 250 VAC
1 A max. at 30 VDC
describes how to find out the inverter
Fig 2.11.
The rating of the flywheel diode must
be at least as high as the circuit volt-
age.
*3