Omron VARISPEED L7 Guia De Inicio Rapido página 10

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Table 2 Control Circuit Terminals with default settings
Type No. Signal Name
S1 Forward run/stop command
S2 Reverse run/stop command
S3 Nominal speed
S4 Inspection Run
Dig-
S5 Intermediate speed
ital
input
S6 Leveling speed
signals
S7 Not used
BB Hardware baseblock
BB1 Hardware baseblock 1
SC Digital input common
Ana-
+V
15 V power supply
log
input A1 Frequency reference
signals
AC Analog reference neutral
Shield wire, optional ground line
E(G)
connection point
M1
Brake command
(1NO contact)
M2
M3
Dig-
Contactor Control
ital
(1NO contact)
output
M4
signals
M5
Inverter Ready
(1NO contact)
M6
MA
Fault output signal (SPDT)
MB
(1 Change over contact)
MC
*1. Do not use this power supply for supplying any external equipment.
*2. When driving a reactive load, such as a relay coil with DC power supply, always insert a flywheel diode as shown in
External power: 30
VDC max.
1. In Fig 4 the wiring of the digital inputs S1 to S7 and BB, BB1 is shown for the connection of contacts or NPN
transistors (0V common and sinking mode). This is the default setting.
For the connection of PNP transistors or for using a 24V external power supply, refer to
2. A DC reactor is an option only for Inverters of 18.5 kW or less. Remove the short circuit bar when connecting a
IMPORTANT
DC reactor.
Sinking/Sourcing Mode (NPN/PNP Selection)
The input terminal logic can be switched over between sinking mode (0-V common, NPN) and sourcing mode
(+24V common, PNP) by using the jumper CN5. An external power supply is also supported, providing more
freedom in signal input methods.
Forward run when ON; stopped when OFF.
Reverse run when ON; stopped when OFF.
Nominal speed when ON.
Inspection RUN when ON.
Intermediate speed when
ON.
Leveling speed when ON.
–
Both inputs must be enabled to enable the inverter
output
–
*1
15 V power supply for analog references
0 to +10 V/100%
–
–
Brake command when ON.
Contactor Control when ON
Inverter Ready when ON.
Fault when CLOSED across MA and MC
Fault when OPEN across MB and MC
Flywheel diode
Coil
1 A max.
Fig 3 Flywheel Diode Connection
Function
Functions are
24 VDC, 8 mA
selected by setting
Photo-coupler
H1-01 to H1-05.
–
15 V
(Max. current: 20 mA)
0 to +10 V(20 kΩ)
–
–
Multi-function con-
Relay contacts
tact outputs
Contact capacity:
1 A max. at 250 VAC
1 A max. at 30 VDC
Fig
The rating of the flywheel diode must
be at least as high as the circuit volt-
age.
Table
Signal Level
*2
3.
3.
EN-8