STP-301/451 Series Instruction Manual 
 
8-9
Operation 
8.3.2  Remote Output Signals 
Use output signals according to Table 8.7 and Figure 8.4.   
This output signal operates in both manual operation and remote operation.     
No.4 of the DSW-B DIP switch operates in "ON/OFF" both states. 
Table 8.7    CON 4 Connector (Remote output signal)
 
Pin Description 
 
(5) (17) 
REMOTE 
N.O OUT 
 
Pins for outputting the STP pump REMOTE SELECTION state 
signal. 
When the MANUAL/REMOTE changeover switch on the STP front 
panel is set to ON (remote side), these pins are closed (REMOTE 
operation). 
However, during power failure backup operation, this signal is not 
output.  
 
(6) (18) 
ROTATION 
N.O OUT 
 
Pin for outputting the rotational state signal. 
These pins are closed when the STP pump is in rotation.   
However, during power failure backup operation, this signal is not 
output. 
(It corresponds to the pin for outputting the "POWER ON" signal of 
the STP-200/300/400 series.) 
 
(7) (19) 
EMERGENCY 
OPERATION 
N.O OUT 
 
Pins for outputting the EMERGENCY OPERATION state signal. 
These pins are closed when failures are detected as follows.   
z  Abnormal state of magnetic bearing 
z  Excessive Vibration 
However, during power failure backup operation, this signal is not 
output. 
 
(8) (20) 
FAILURE 
N.O OUT 
 
Pins for outputting the FAILURE state signal. 
These pins are closed when failures are detected as follows. 
z  Motor driver overload 
z  Overheating inside the STP pump 
z  Overheating inside the STP control unit 
z  Overspeed 
However, during power failure backup operation, this signal is not 
output. 
 
(9) (21) 
OVER 
TEMPERATUR
N.O OUT 
 
Pins for outputting the OVER TEMPERATURE state signal. 
These pins are closed when overheating inside the STP pump is 
detected.  
However, during power failure backup operation, this signal is not 
output. 
 
(11) (23) 
ACCELERATION 
N.O OUT 
 
Pins for outputting the ACCELERATION state signal. 
These pins are closed when the STP pump is in acceleration. 
 
(11) (24) 
NORMAL 
OPERATION 
N.O OUT 
 
Pins for outputting the NORMAL OPERATION state signal. 
These pins are closed when the STP pump is in rated operation. 
 
(10) (22) 
 
Not used. 
(It corresponds to the pin for outputting the "BATTERY 
OPERATION" signal of the STP-200/300/400 series.) 
 (12) 
 
Not used. It is connected to the frame ground.