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6.7 Travel Limit Function
The Travel Limit Function is a switch that prevents the cart/container from traveling past the target location, and
hoisting functions from raising the load up too high. Based on the Multi-Function Input setting, selections can be made
for the FWD/REV side, or for N.O./N.C. relays. Setting values for the operations that follow detection are shown in the
table below.
Note: If either the forward or reverse run commands are disabled, the operator will display "FWD Limit Active"
(or "REV Limit Active" when disabled on the reverse side) based on the input relay for the Travel Limit
.
Operation after Travel Limit Detection:
Setting
Name
Message
Operation after Detection
3 1
FWD Side Limit Input
(N.O.)
FWD Limit N.O.
If the Multi-Function Input relay is closed during forward run, then the Brake Release
Command will open (causing the drive to brake), and the motor will coast to stop as the output
frequency reaches zero. If closed during reverse run, there will be no change to drive
operations. When this relay is open, it is enabled along with both forward and reverse
commands.
3 2
FWD Side Limit Input
(N.C.)
FWD Limit N.C.
If the Multi-Function Input relay is opened during forward run, then the Brake Release
Command will open (causing the drive to brake), and the motor will coast to stop as the output
frequency reaches zero. If opened during reverse run, there will be no change to drive
operations. When this relay is closed, it is enabled along with both forward and reverse
commands.
3 3
REV Side Limit Input
(N.O.)
REV Limit N.O.
If the Multi-Function Input relay is closed while in reverse, then the Brake Release Command
will open (causing the drive to brake), and the motor will coast to stop as the output frequency
reaches zero. If closed during forward run, there will be no change to drive operations. When
this relay is open, it is enabled along with both forward and reverse commands.
3 4
REV Side Limit Input
(N.C.)
REV Limit N.C.
If the Multi-Function Input relay is open while in reverse, then the Brake Release Command
will open (causing the drive to brake), and the motor will coast to stop as the output frequency
reaches zero. If open during forward run, there will be no change to drive operations. When this
relay is closed, it is enabled along with both forward and reverse commands.
6.8 Motor Switch Function
Separate motors can be operated from a single drive. An external sequence is used to switch between motors.
Control Modes for Motor 2 (i.e., the motor used after switching) include Open Loop Vector and V/f only (PG cannot be
used).
Note:
When operating the drive with Motor 2, certain limitations exist due to restrictions on Motor 2 parameter
settings (refer to "Motor Switching Control" section below).
Operation Description:
(1) If the Motor Switch Command goes from being closed to open (or from open to closed) during stop (the Run
Command is OFF during Baseblock), then the motor controlled by the drive will be switched from Motor 1 to Motor
2 (or the other way around). Refer to the following table:
(2) When the Motor Switch Control is complete, it closes (or opens) while switching motors.
Note: 1. Be sure to switch motors only when the drive has stopped (i.e., the Run Command is OFF during
baseblock).
If motors are switched during run, a message indicating that the drive will change motors will flash on the
operator screen until the motor comes to a complete stop. Once stopped, the drive will switch to the other
motor.
REV
FWD
limit switch for REV
limit switch for FWD
Varispeed G7
Multi-Func Input:
Motor Switch Control
M
M
Motor 2 (motor after switching)
Motor 1
IM
IM
M
Multi-Function Output: dur ing motor switching
Содержание CIMR-F7Z
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