Powder Unwinding, Two-Reel Switching - Mitsubishi LE-40MTA-E Instruction Manual

6.7 Powder unwinding, two-reel switching

In the two-reel operation, the contacts inter-
locking with the reel change are connected to
MC2. When this contact input changes from
ON to OFF or OFF to ON, the control output
is preset to the new reel preset value. When
the preset timer times up, the automatic con-
trol starts here. Interlock this signal with the
cutter operation. Switch SW1 at the same
time as SW2 and SW3.
At this stage, as the previous reel is stopped,
turn on the auxiliary power supply in a few
seconds but not later than 10 seconds.
1. Connection of switch-over 2-reel powder
Reel exchange
MCC
MC2
SW1
2. Setting
• Use the "REEL NUM." ( number of reels ) screen within "SWITCH" in the initial setting screen or the
engineer screen to set reel switch-over or change the setting. Select "REELS" ( multiple reels ).
R E E L
1 R E E L
• Use the "NEW R.SET" ( new reel set ) screen on the operator screen to set or change the new reel
preset value. Refer to the guideline for controller setting on page 15 to determine the settings.
N E W
N E
• Use the "PRESET T" screen within "REEL CHANGE" on the engineer screen to set or change the pre-
set time. Include a margin in the preset value so that the tension feedback will not take place while
the tension is unstable after switching the reels.
P R E S E T
0.1Ω
12V
0.1Ω
New reel
preset
N U M . S E L E C T
: R E E L S
R . S E T
S E T →
W R . S E T
S E T →
T
S E T →
MC2 input
Reel exchange
Preset timer
P-N
control output
Auxiliary
power output
PA (control output +
auxiliary power output )
PB (control output +
auxiliary power output )
PA and PB is control output for powder to A/B shaft.
Reel exchange
SW2
P
SW3
N
SW4
S1
S2
SW5
R E E L N U M B E R
Select "REELS" (multiple reels)
→
# # # % T N S N .
O U T P U T →
# # # %
S E T P R E S E T
# # . # s
23
A reel
B reel
New reel preset
Old reel stop
PA
DA, RA
PB
DB, RB
PA , PB : Powder clutch/brake
(hysteresis clutch/brake)
DA , DB : Commutation diode
200V,5A
RA , RB : Protection resistance
10W,47Ω
# # # # N
# # # %
T I M E R
A reel