4-88
E20 to E23
E24, E27
Terminal [Y1] to [Y4] Function
Terminal [Y5A/C] and [30A/B/C] Function (Relay output)
E20 through E24 and E27 assign output signals (listed on the next page) to general-purpose, programmable
output terminals [Y1], [Y2], [Y3], [Y4], [Y5A/C] and [30A/B/C].
These function codes can also switch the logic system between normal and negative to define how the inverter
interprets the ON or OFF state of each terminal. The factory default setting is normal logic system "Active ON."
Terminals [Y1], [Y2], [Y3] and [Y4] are transistor outputs and terminals [Y5A/C] and [30A/B/C] are relay contact
outputs. In normal logic, if an alarm occurs, the relay will be energized so that [30A] and [30C] will be closed, and
[30B] and [30C] opened. In negative logic, the relay will be de-energized so that [30A] and [30C] will be opened,
and [30B] and [30C] closed. This may be useful for the implementation of failsafe power systems.
• When a negative logic is employed, all output signals are active (e.g. an alarm would be recognized)
while the inverter is powered OFF. To avoid causing system malfunctions by this, interlock these signals
to keep them ON using an external power supply. Furthermore, the validity of these output signals is
not guaranteed for approximately 1.5 seconds (for 40 HP or below) or 3 seconds (for 50 HP or above)
after power-ON, so introduce such a mechanism that masks them during the transient period.
• Terminals [Y5A/C] and [30A/B/C] use mechanical contacts that cannot stand frequent ON/OFF
switching. Where frequent ON/OFF switching is anticipated (for example, limiting a current by using
signals subjected to inverter output limit control such as switching to commercial power line or
direct-on-line starting), use transistor outputs [Y1], [Y2], [Y3] and [Y4] instead.
The service life of a relay is approximately 200,000 times if it is switched ON and OFF at one-second
intervals.
The table below lists functions that can be assigned to terminals [Y1], [Y2], [Y3], [Y4], [Y5A/C], and [30A/B/C]. The
descriptions are, in principle, arranged in the numerical order of assigned data. However, highly relevant signals
are collectively described where one of them first appears. Refer to the function codes or signals in the "Related
function codes/signals (data)" column, if any.
The EQ7 runs under "V/f control," "dynamic torque control," "vector control without speed sensor," or "vector
control with speed sensor." Some output signals assigned apply exclusively to the specific drive control, which is
indicated by letters Y (Applicable) and N (Not applicable) in the "Drive control" column of the table given below.
(Refer to page 4-2.)
Explanations of each function are given in normal logic system "Active ON."
Function code data
Functions assigned
Symbol
Drive Control
Related
function
codes
Active ON Active OFF
V/f
w/o
PG
w/
PG
Torque
control
0
1000
Inverter running
RUN
Y
Y
Y
Y
1
1001
Frequency (speed) arrival signal
FAR
Y
Y
Y
N
E30
2
1002
Frequency (speed) detected
FDT
Y
Y
Y
Y
E31, E32
3
1003
Undervoltage detected (Inverter
stopped)
LU
Y
Y
Y
Y
4
1004
Torque polarity detected
B/D
Y
Y
Y
Y
5
1005
Inverter output limiting
IOL
Y
Y
Y
Y
6
1006
Auto-restarting after momentary
power failure
IPF
Y
Y
Y
Y
F14
7
1007
Motor overload early warning
OL
Y
Y
Y
Y
E34, F10,
F12
8
1008
Keypad operation enabled
KP
Y
Y
Y
Y
10
1010
Inverter ready to run
RDY
Y
Y
Y
Y
11
Switch motor drive source between
commercial power and inverter
output (For MC on commercial
line)
SW88
Y
N
N
N
E01 to E07
ISW50
(40)
ISW60
(41)
J22
12
Switch motor drive source between
commercial power and inverter
output (For secondary side)
SW52-2
Y
N
N
N
13
Switch motor drive source between
commercial power and inverter
output (For primary side)
SW52-1
Y
N
N
N
15
1015
Select AX terminal function (For
MC on primary side)
AX
Y
Y
Y
Y
