Varispeed V7
341
Main circuit
Control Circuit
Terminal
Name
Function (signal level)
R/L1, S/L2, T/L3
AC power supply input
Main circuit power supply input (use R/L1 and S/L2 for single-phase power supply inverter.
Do not use T/L3 of the models less than 0.75 kW for other usage, such as a junction terminal.)
U/T1, V/T2, W/T3
Inverter output
For inverter output
B1, B2
Braking resistor connection
For braking resistor connection
+2, +1
DC reactor connection
Remove the short bar b2 and +1 when connecting DC reactor (option)
+1, –
DC power supply input
For power supply input (+1: positive electrode; – : negative electrode)*
Grounding
For grounding (grounding should conform to the local grounding code.)
Type
No.
Signal name
Function
Signal level
Di
gital inpu
t s
ignals
S1
Multi-function input selection 1
Factory setting: runs when CLOSED, stops when OPEN.
24VDC, 8mA
photocoupler
insulation
S2
Multi-function input selection 2
Factory setting: runs when CLOSED, stops when OPEN.
S3
Multi-function input selection 3
Factory setting: "fault reset"
S4
Multi-function input selection 4
Factory setting: "external fault (NO contact)"
S5
Multi-function input selection 5
Factory setting: "multi-step speed reference 1"
S6
Multi-function input selection 6
Factory setting: "multi-step speed reference 2"
S7
Multi-function input selection 7
Factory setting: "JOG command"
SC
Multi-function input selection
Common
Common for control signal
Anal
og i
nput sig
nals
RP
Speed reference pulse train input
33 kHz max.
FS
Power supply terminal for
frequency setting
+12V (allowable current: 20 mA max.)
FR
Speed frequency reference
0 to +10 VDC (20 k
Ω
) or 4 to 20 mA (250
Ω
), 0 to 20 mA (250
Ω
) (resolution 1/1000)
FC
Frequency reference common
0 V
1 (CN2)
Multi-function analog voltage input
Voltage input (between terminals 1 and 3): 0 to 10 VDC (input impedance: 20 k
Ω
)
Current input (between terminals 2 and 3): 4 to 20 mA (input impedance: 250
Ω
)
2 (CN2)
Multi-function analog current input
3 (CN2
Multi-function analog input common
Digi
ta
l outpu
t
signals
MA
NO contact output
Factory setting: "fault"
Contact capacity
250 VAC,
1 A or less
30 VDC, 1 A
or less
NC
Contact output
MC
Contact output common
P1
Photocoupler output 1
Factory setting: "running"
Photocoupler output:
+48 VDC, 50 mA or
less
P2
Photocoupler output 2
Factory setting: "at frequency"
PC
Photocoupler output common
0 V
Analo
g
ou
tp
ut
s
ignals
AM
Analog monitor output
Factory setting: "output frequency" 0 to +10 V output
(pulse monitor output available by setting constants. Duty: 30 to 70%)
0 to 10 V 2 mA
or less
Resolution: 8 bits
AC
Analog monitor common
0 V
RS-
485/
422
R+
Communication input (+)
For MEMOBUS communication
operation by RS-485 or RS-422 communication is available.
RS-485/422
MEMOBUS
protocol
19.2 kBPS max.
R–
Communication input (–)
S+
Communication output (+)
S–
Communication output (–)
Y203-EN2-02-Katalog.book Seite 341 Mittwoch, 24. Mai 2006 2:22 14
