Circuit Descriptions - Omron VARISPEED F7 User Manual

Circuit Descriptions

Refer to the numbers indicated in
1
These circuits are hazardous and are separated from accessible surfaces by protective separation
2
These circuits are separated from all other circuits by protective separation consisting of double and
reinforced insulation. These circuits may be interconnected with SELV
*
SELV circuits, but not both.
3
Inverters supplied by a four-wire-system source (neutral grounded)
These circuits are SELV
consisting of double and reinforced insulation. These circuits may only be interconnected with
*
other SELV (or equivalent) circuits.
Inverters supplied by a three-wire-system source (ungrounded or corner grounded)
These circuits are not separated from hazardous circuits other circuits by protective separation, but
only with basic insulation. These circuits must not be interconnected with any circuits which are
accessible, unless they are isolated from accessible circuits by supplemental insulation
* SELV = Safety Extra Low Voltage
1. Control circuit terminals are arranged as shown below.
BB
SN SC
IMPORTANT
E(G ) S1
2. The Hardware Baseblock Terminals BB, BB1 and SN are only available in the Inverter Version with Safety.
3. The output current capability of the +V and -V terminals is 20 mA.
4. Main circuit terminals are indicated with double circles and control circuit terminals are indicated with single cir-
cles.
5. The wiring of the digital inputs S1 to S7, BB and 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
ing Mode.
6. The master frequency reference can be input either at terminal A1 or at terminal A2 by changing the setting of
parameter H3-13. The default setting is terminal A1.
7. The multi-function analog outputs are dedicated meter outputs for analog frequency meters, ampmeters, voltme-
ters, wattmeters, etc. Do not use these outputs for feedback control or for any other control purposes.
8. To enable the inverter both inputs, "BB" and "BB1" must be closed. If only on of the inputs is opened "BB" will be
displayed in the operator display and the inverter will not start.
9. DC reactors to improve the input power factor are built into 200 V Class Inverters from 22 up to 110 kW and 400 V
Class Inverters from 22 up to 300 kW. A DC reactor is an option only for Inverters of 18.5 kW or less. Remove the
short circuit bar when connecting a DC reactor.
Fig 2.1.
*
circuits and are separated from all other circuits by protective separation
BB1 SN
SP A1 A2 V+ AC V-
S2 S3 S4 S5 S6 S7
MP AC RP R+ R- M5
FM AC AM IG S+ S-
*
(or equivalent) or non-
M6 MA MB MC
M3 M4 M1 M2 E(G)
page 2-25, Sinking/Sourc-
2
3
2-