5.4 Details of Function Codes
5-141
Details of
Function Codes
F codes
E01 to E27
C codes
P codes
H codes
A codes
b codes
r codes
J codes
d codes
U codes
y codes
Chapter 5 Function Code
E16, E17
Torque Limit Value 2-1, 2-2 (See F40)
For details of settings of torque limit values 2-1, 2-2, see the section describing the function code F40.
E20 to E23
E24, E27
Terminal [Y1] to [Y4] (Function Select)
Terminal [Y5A/C] and [30A/B/C] (Relay Output)
Terminals [Y1] to [Y4], [Y5A/C] and [30A/B/C] are programmable general-purpose output terminal. functions
can be assigned by using E20 to E24 and E27. With the negative logic setting, switching between active ON
and active OFF of each signal is possible.
The factory default setting is normal logic system "Active ON." Terminals [Y1] to [Y4] are transistor outputs
and terminals [Y5A/C] and [30A/B/C] are relay contact outputs. Generally, in terminal [30A/B/C] output, when
an alarm is output, the relay is energized so that [30A] and [30C] will be closed, and [30B] and [30C] opened.
However, in the negative logic setting, when an alarm is output, the relay is de-energized but [30A] and [30C]
can be opened, and [30B] and [30C] can be closed and used as a fail-safe.
- In the negative logic setting, each signal becomes active (ex.: alarm generate side) while the
inverter power is blocked. This may be useful for the implementation of failsafe power systems.
Furthermore, the validity of these output signals is not guaranteed for approximately 1.5
seconds (for 22 kW or below) or approx. 3 seconds (for 30 kW or above) after power-ON.
During this period, take appropriate procedure such as masking them outside.
- Contact output (terminals [Y5A/C] and [30A/B/C]) are mechanical contacts. Frequent ON/OFF
switching cannot be accepted. 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] to [Y4]) instead.
The service life of a relay is approximately 200,000 times if it is switched on and off at
one-second intervals. Output the signals, which are switched on/off highly frequently, from the
terminal [Y1] to [Y4].
The tables given on the following pages list functions that can be assigned to terminals [Y1] to [Y4], [Y5A/C],
and [30A/B/C]. Explanation of each signal is provided in an order of assigned data. However, highly relevant
signals are collectively described where one of them first appears. See the function codes or signals in the
"Related function codes/signals (data)" column, if any.
The FRENIC-MEGA runs under V/f control, dynamic torque vector control, V/f control with speed sensor,
dynamic torque vector control with/without speed sensor, or "vector control with speed sensor." Some
functions are effective only to specified control method. In the control system field, "{: Valid" or "X: Invalid" is
indicated for each function. (See page 5-3.)
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