SV-iS7 User Manual - Inverter Drive Supermarket

Chapter 8 Applied Functions
3) Interlock
This is the function of stopping the motor operating and replacing it with another motor in case of a failure of the
motor. If the failure signal is input into the input terminal and the functions of the relevant terminals are set as
Interlock 1~4, it will be decided whether to operate the motor according to the terminal input status. The replacement
operation sequence varies according to the set values of the motor auto change mode selection(APO-35) described
above.
IN-65~75 Px Define : The terminal to use as the interlock among the IN 65~75(75 if there is extended I/O) is
selected and Interlock 1~4 are set according to the motor sequence. If the auto change mode selection(APO-35) is
set at 0(None) or 1(Aux) and if auxiliary motors 1, 2 and 3 are connected to inverter output terminals Relay1, 2 and
Q1 when a total of four motor including the main motor is operating, the interlock numbers 1, 2 and 3 correspond to
the motor connected to Relay1, 2 and Q1.However, if the auto change mode selection(APO-35) is set at 2(Main)
and the main and auxiliary motors are connected to inverter output terminals Relay1, 2, Q1 and Q2(extended I/O
used) respectively, Interlock 1, 2, 3 and 4 correspond to the motors connected to Relay1, 2, Q1 and Q2.
APO-38 Interlock : Select No. 1 Yes.
1) If there are a total of 5 motors and the auto change mode selection(APO-35) is set at 0(None) or 1(Aux), the
operation is as follows. If signals are input into the terminal block set at Interlock 3 with a failure of motor 3 when it is
static, the auxiliary motors operate in the sequence of 1, 2 and 4. (when the starting auxiliary motor selection APO-
21 is 1) If the terminal block signals are withdrawn, the motion sequence is 1, 2, 3 and 4. If signals are input to the
terminal of Interlock 3, the auxiliary motor 3 is stopped and the auxiliary motor 4 operates. If the interlock signal is
withdrawn, the auxiliary motor 4 is stopped and the auxiliary motor 3 operates again.
8-60
R S T
Inverter
U V W
KM1 KM2 KM3 KM4
M1
3 phase input
KD1 KD2 KD3 KD4
M2 M3 M4