I/O Tb2 Terminal Block; Table 8.4 I/O Tb2 Terminal Block - Edwards STP-L301 Series Instruction Manual

8.2

I/O TB2 Terminal Block

This is a terminal block for remote input signals. Use it in accordance with Table 8.4 and
Figure 8.2 (see Section 7.5, "Remote Operation (I/O TB2)").
This terminal block operates only during the REMOTE operations. Switch "OFF" the No.4
switch of the DSW-B with CON4. The screw for the terminal is M4
Three abbreviations are used in the following table:
COM: Common IN: Input Terminal
Terminal
(1) (2)
+12V
OV
OUT
OUT
(3) (5)
COMMON START
IN IN
(3) (4)
COMMON STOP
IN IN
(3) (6)
COMMON RESET
IN IN
◇ When performing all of the START, STOP, and RESET operations using method 3
shown in the above table, 25 to 250 Vac can be input. In this case, attach a metallic
cover or a similar part to the terminal block to ensure the safety.
*1
JIS

Table 8.4 I/O TB2 Terminal Block

Terminals for outputting the power (12 Vdc) for driving remote
signals.
Terminals for inputting the START signal. The following three
methods are available:
1) Short the circuits between (2)-(3) and (1)-(4). Then, shorting
the circuit between (4)-(5) for 0.3 seconds or more causes the
STP pump to start. When this signal is input simultaneously
with switching ON the breaker on the rear panel, short the
circuit for 5 seconds or more.
2) Short the circuit between (2)-(3). Then, shorting the circuit
between (1)-(5) causes the STP pump to start.
3) Input 25 Vac or 12 to 48 Vdc between (3)-(5) to start the STP
pump.
With DC input, the (+) side can be connected to either (3) or (5).
Terminals for inputting the STOP signal.
This STOP signal has priority over the START signal.
1) When 1) above is used to start the STP pump, open the
circuit between (1)-(4) to stop the pump.
2) When 2) above is used, open the circuit between
(1)-(5) to stop the pump.
3) When 3) above is used, open the circuit between
(3)-(5) to stop the pump.
Terminals for inputting the abnormality RESET signal.
1) When 1) or 2) above is used, shorting the circuit between
(1)-(6) for 0.3 seconds or more turns off the "FAILURE"
LED.
2) When 3) above is used, input 25 Vac or 12 to 48 Vdc between
(3)-(6) for 0.3 seconds or more to turn off the "FAILURE"
LED. With DC input, the (+) side can be connected to either (3)
or (6).
8-5
STP-L301/L451 Series Instruction Manual
.
*1
OUT: Output Terminal
Description
◇ NEVER use these terminals for the
purpose except REMOTE operations.
DO NOT connect these terminals to
another power line. Doing so causes a
failure.