Siemens MJ-XL Installation And Operation Manual page 15

Power and Motor Control Terminal Contacts
A simplified schematic drawing of the power and motor control terminal connections is shown in Figure 2.3 below
.
Power Switch
On
PDS-U2
External
External
Source
(Line)
Motor
Power
Remote
Control
Relay
K7
Remote/Auto/Manual
Manual
Automatic Automatic
"Lower" "Raise"
Relay* Relay*
K5 K4
Manual
Tap
Raise/Lower
Switch
*Auto relays disabled when R/A/M
switch is in Manual position
"J" Current Sense
"K" Current Sense
Simplified Schematic of "Terminal" Remote Control Connections
Figure 2.3
Siemens Power Transmission & Distribution, Inc.
2
Using the MJ-XL Operator Panel and Controls
P2B
P2B
P2B
P2B
P3A
P3A
P3A
Switch
P2B
P2B
Raise
Off
P2B
Lower
P2B
P2B
P2B
P2A
P2A
Connections for
External Motor Power
U U
12 12
U6 U6
11 11
U6 U6
10 10
U7 U7
9 9
REM-STAT
9
Status of Remote/Auto/Manual Switch
Status
R/M Com
Outputs Switch Position
8
Remote
Auto
MAN-STAT
7
Manual
Connections for "Terminal Block" (T.B.) Remote Control
T.B. Remote Control for
R/A/M Switch in Remote
U-REM U-REM
5 5
T.B.
Remote
J22 J22
Raise
4 4
J21 J21
3 3
U-REM U-REM
6 6
T.B.
K22 K22
Remote
7 7
Lower
K21 K21
8 8
PDS-J
9 Note: The dotted-lineconnections between terminals
represent the default (factory installed) jumpers.
10 PDS-K
Connections for
External Motor Power
(Automatic Only)
U
12
External Power
U6
(or connect
11
Relay between
U and U6)
U6
10
External Power
U7 (or connect
9
Relay between
U6 and U7)
REM to COM MAN to COM
Closed Open
Open Open
Open Closed
T.B. Remote Enable/Disable of
Automatic Operations
U-REM
5
J22
4
J21
Relay
3
Contacts
U-REM
6
K22
7
K21
8
Relay
Contacts
Open - Disable
Close - Enable
11