Remote Input/Output Signal Terminal Blocks; I/O Tb1 Terminal Block; Table 8.1 I/O Tb1 Terminal Block - Edwards STP-L301 Series Instruction Manual

8

Remote Input/Output Signal Terminal Blocks

8.1

I/O TB1 Terminal Block

This is a terminal block for remote output signals. Use it in accordance with Table 8.1 and
Figure 8.1. This terminal block functions in both the MANUAL and REMOTE operations.
The screw for the terminal is M3.5
Five abbreviations are used in the following table:
N.O: Normal Open
IN: Input Terminal
◇ When connecting the power supply for the air cooling unit to terminals (1)-(4),
attach a metallic cover or a similar part to the terminal block to ensure the safety.
Terminal
FAN
(3)
N.O OUT
(4)
(5)
(6)
POWER
(7)
N.O OUT
(8)
(9)
N.O N.C
ALARM
OUT
COM
(10)
(12) (14)
BRAKE
N.O OUT
*1
: JIS
.
*1
N.C: Normal Close
OUT: Output Terminal

Table 8.1 I/O TB1 Terminal Block

Terminals for inputting power for driving the air cooling unit.
The voltage input to these terminals is output to the specified
terminal block through operation of the STP pump.
Terminals for connecting the air cooling unit.
The voltage input to AC. POWER terminals (1)-(2) is output to
these terminals when the STP pump is in acceleration or rated
operation.
The voltage is cut OFF when the STP pump is under the
BRAKE state (see Section 5.2.2, "Air Cooling Method").
Not-used.
DO NOT use these terminals.
Terminals for outputting the POWER ON state signal.
These terminals are closed when the magnetic bearing
functions and the rotor levitates.
This signal is cut OFF at a power failure.
Terminals for outputting the ALARM signal.
(11)
When an abnormality/error is detected under the POWER ON
state, the terminals between (10)-(9) are closed, and the
terminals between (10)-(11) are opened.
However, when the rotational speed is less than 20,000 rpm
during power failure backup operation, this signal is not
output.
Terminals for outputting the BRAKE state signal.
These terminals are closed when the STP pump is in brake.
However, when the rotational speed is less than 20,000 rpm
during power failure backup operation, this signal is not
output.
STP-L301/L451 Series Instruction Manual
COM: Common
Description
8-1