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Interlock Connection - Toshiba 48-1250 A Instruction Manual

Low voltage digital solid state starter 48-1250 a
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TD Series
TB2
TB4
1
2
3
Jog
Common
TB4
1
2
3
Dual
Common
Ramp
TB1
1
2
3
4
Interlock
Digital Solid State Soft Starter 48 - 1250A
1
2
3
4
C
NO
NC
C
Programmable
Programmable
Relay
AUX 1
Fn F050
240Vac / 5A / 1200VA
4.2.6 Fault Signal
An optical AC switch triac driver is used for fault indication. This signal energizes
with the fault LED. The optical output is rated for 240 VAC, 50 mA (maximum).
4.2.7 Resetting Faults
To reset faults, press the RESET key on the keypad.
4.2.8 Enabling the Jog Function
Closing TB4 Pins 1 and 2 will enable the Jog feature. The Jog feature can be
used for tasks such as lining up machines for blade or bit changes or inching
belts along to check tracking. See chapter 9 for main control board layout.
4.2.9 Enabling the Dual Ramp Feature
Closing TB4 Pins 1 and 3 will enable ramp 2. The dual ramp feature is useful in
instances where a load changes such as a loaded or unloaded conveyor belt.
The characteristics for starting an unloaded conveyor can be programmed for
ramp 1. The characteristics for starting a loaded conveyor can be programmed
for ramp 2.

4.3 Interlock Connection

TB1 provides a connection point for an external user N.C. (normally closed)
interlock device between pins 2 and 3. (Examples of the use of this interlock
connection would be for conditions such as low oil, high temperature, or excess
vibration from user supplied devices).
5
6
A factory installed jumper is provided which allows the TD unit to operate if
external interlocks are not used. If this jumper is removed and an interlock is not
used, the TD unit will not function.
5
6
7
8
NO
NC
C
NO
Programmable
Relay
Relay
AUX 2
AUX 3
Fn F051
Fn F052
TD - Series
- 12 -
11
12
9
10
NC
Fault
Signal
Optical Triac
Driver
240Vac
50mA

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