Omron VARISPEED E7 IP54 Kurzanleitung Seite 11

Type No. Signal Name
R+
MEMOBUS communications
input
R-
S+
MEMOBUS communications
output
S-
IG Signal common
*1. The default settings are given for terminals S3 to S7. For a 3-wire sequence, the default settings are a 3-wire sequence for S5, multi-
step speed setting 1 for S6 and multi-step speed setting 2 for S7.
*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
External power:
30 VDC max.
1. In Fig 2 the wiring of the digital inputs S1 to S7 is shown for the connection of contacts or NPN transis-
tors (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 con-
IMPORTANT
necting a 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.
Internal Power Source - Sinking Mode (NPN)
For 2-wire RS-485, short R+ and S+ as
well as R- and S-.
–
Flywheel diode
Coil
1 A max.
Fig 6 Flywheel Diode Connection
Table 3 Sinking / Sourcing Mode and Input Signals
External Power Source - Sinking Mode (NPN)
Function
Differential input, PHC
isolation
Differential input, PHC
isolation
–
The rating of the flywheel diode must be
at least as high as the circuit voltage.
External +24 V
Signal Level
Fig 6
Table 3.
EN-10