Control Connections; Tcb Board - Toshiba JKSSS Series Instruction Manual

Basic Installation and Operation
Guide
2.9 Control Connections - TCB (Terminal and Control Board)

2.9.1 TCB Board

The TCB board, FIG. 2.9.1 shown below, provides interconnections between the main power and CPU boards
and the customer's control logic connections. It is a 120 VAC control board with several auxiliary dry control
contacts, built-in time delay circuits and emergency bypass functions. It also controls the sequence of the inline
isolation and bypass contactor and provides provisions for shutdown interlocks (see Section 2.9.2 for terminal
designations and descriptions).
F1 – Control fuse for TB1 1-9
Part No. ACG1A250AC or equiv.
F2 – Contactor and relay output fuse.
Part No. ACG4A250AC or equiv.
F3 – TB2 terminal 6 (120VAC Input)
Part No. ACG4A250AC or equiv.
120 VAC Input Power
N
Start Input
Fuse Blown Input
Dual Ramp Input
Bypass Status Input
Run Contacts
(AUX 3) Status.
To TCB Board
Fault (AUX 1)
Status.
At Speed (AUX 4)
Status.
Input from external protection
relay.
Input from an external overload
protection device, if decel is
required (factory jumper).
At Speed N.C. dry contact Input
(Factory wired)
Energizes / De-energizes
the Bypass Contactor Coil
Energizes / De-energizes
the Inline Isolation
Contactor Coil
TOSHIBA
Power
Supply
Green LED
F1
POWER
F2
F3
1
N
2
ON OFF
3
SW1
4
DUAL ADJ
TB6
5
Remove JP1 for
electronic Motor
6
overload protection
During emergency
7
bypass operation.
8 Green LED
Green LED
9
10
AUX BYPASS
Green LED
1
2
AT SPEED
3
TB7
4
5
6
7
NC
Jumpers
1
2
3
4
TB8
5
7 6 5 4 3 2 1
6 7 6 5 4 3 2 1 7 6 5 4 3 2 1
7
AUX
PFC
8
SW4
SW5
9
10
FIG. 2.9.1 TCB Terminal and Control Board
12
11
10
N
9
Red LED
8
FUSE
7
TB1
Red LED
6
5
FAULT
4
3
2
1
10
9
8
7
6
TB2
5
Green LED 4
3
DELAYED
2
START
1
JP1
12
11
EMERGENCY
BYPASS
10
9
8
7
TB3
6
5
4
3
2
1
12
11
10
Green LED
PFC
9
TIMED OUT
8
7
6
TB4
START 5
SW3
4
Green LED
3
DELAYED
TIMED OUT
2
1
3 NEUT.
TB5
PERM
2
PFC
1 LINE
JKSSS Series Solid State Soft Starters
2 or 3 Wire Control
Momentary or
Maintained Start /
Relay Operates on
immediate Start / Stop Stop Switching
supplied by customer
Start
N
Maintain
Contact
Stop
120 VAC
Control Input Power
Optional Interlock (Factory installed Jumpers)
Normally closed dry contact input.
Emergency Stop Switch Optional
Interlock (Factory installed Jumper)
Control Power Output
(120 VAC @ 200VA)
Relay changes state
when the Emergency
Bypass Switch is closed.
Emergency Bypass
Switch Input
Relays Operate when any
Fault condition occurs
Relays Operate to indicate
a Blown Fuse or that the
Disconnect is open
Relays Operate to pull in an
Isolated Contactor to
activate Power Factor
Correction Capacitors
64 32 16 8 4 2
7 6 5 4 3 2 1
ON
Relays Operates (with a
time delay) when the
Switch position value;
Start Contact is initiated.
Ex. Position 1+2+3: 1+2+4 = 7
N
120 VAC Power
L
1
Value
Postion
20