BENSHAW RSi SG Series, Instruction Manual

Page: 163 / 218

Chapter 6 – Parameter Description [APP]
6-75
APP-69: Interlock Selection
When APP-69 [Interlock selection] is set to “Yes”,
M1~M4 can be used as the same activating condition
for AUX1~AUX4. Multi-function input terminals are
activated when turned ON. If one of them is turned
off, all motors will start running except the motor
connected to the off terminal. If the input signal is
turned off in the midst of running, drive stops all the
motors and restarts the operation with normal active
motors.
Interlock during Stop
When Run signal is input during Stop, MMC
operation is started with all the Auxiliary motors
(Relays) available to be turned ON.
Ex) When Interlock is not selected:
RLY1

RLY2

RLY3

RLY4
When Interlock is active (the terminal
defined as Interlock/RLY2 is turned Off to signify
that motor 2 should not run):
RLY1

RLY3

RLY4
Interlock during RUN
When Interlock is active during RUN (the terminal
defined as interlock/RLY is turned Off during RUN),
drive stops all motors and restart MMC operation
with auxiliary motors except the interlocked one
(terminal turned Off).
Ex) Normal operation:
RLY1

RLY2

RLY3

RLY4
When Interlock is active (the terminal defined as
Interlock/RLY3 is turned OFF), all Aux motors are
turned Off and stopped. MMC operation is restarted
except Aux motor 3 (RLY 3 Off).
Aux motors start rotating in the order of
RLY1

RLY2

RLY4.
Aux motor starting condition
and output (Pressure,
air volume.) adjustment
Drive turns Aux motors ON automatically when it is
impossible for a main motor to control increased
load, causing shortage in flow rate or pressure. For
the drive to turn the On Aux motors (maximum 4),
starting frequencies for each motor should be set.
Aux motor starting condition:
Main motor speed
exceeds Aux motor starting frequency (APP-44~47),
for the time set in APP-58[Aux motor starting delay
time] and the Difference between PID reference and
Feedback value exceeds APP-71 [Pressure difference
for Aux Motor Start].
APP-44~47: Frequency to turn Aux motor ON. It
is based on the main motor frequency output.
APP-58:
S
hould be set greater than system
response delay time.
APP-71: Set by comparing the pressure difference
between the PID reference and the Feedback
values to determine when Aux motor is turned
ON.
APP-61: This is the time the drive frequency is
decreased after Aux motor is turned ON. It should
be set higher than System delay time because it
can cause the Aux motor to run longer than
necessary.
Aux motor
starting freq.
APP-44~47
Aux motor
starting delay
time
APP-58
Starting Aux motor pressure difference
APP-71
Aux motor stop freq.
APP 51~54
Inverter Decel Time when
number of Pump increase
APP-61
Aux
motor
Main
motor
Threshold
APP ► Inter-lock
69 No
Factory Default:
No