Omron VARISPEED L7 User Manual

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

Omron VARISPEED L7 Specifications

General

Brand	Omron
Model	VARISPEED L7
Category	Inverter
Language	English