Stenner Pumps S Serie Manual De Instalación Y Mantenimiento página 71

CONNECTIONS
STANDBY
The STANDBY function allows the pump to be stopped remotely. If a dry contact or open collector
signal is received to the STANDBY inputs, the pump will cease operation as long as the signal is
present. The pump will also flash "STANDBY" on the operating display.
NOTE: The STANDBY function can be used to transfer operation to a secondary pump in the event of a primary pump
failure. An output relay on the primary pump is programmed for TRANSFER and Normally Closed. This relay provides an
input to the STANDBY function of the secondary pump, which is programmed identically to the primary pump. In the
event of a loss of power or an alarm event that shuts down the primary pump, the output relay on the primary pump
opens and activates the secondary pump.
Controller
Dry Contact Relay Output
Connection Terminals
Connection to a Dry Contact
• There is no polarity to observe.
• Connect relay to Standby (+), position #4 and Standby (–), position #5 on the top row.
Connection to an Open Collector output
• Polarity must be observed.
• Connect OC positive to Standby (+), position #4 on the top row.
• Connect OC common to Standby (–), position #5 on the top row.
1 2 3
Output Output
Standby
Relay Relay
1 1
Output Output 4-20mA
Relay Relay
3 3
11 12 13
S Series FW 4.01.02 US and Canada 800.683.2378, International 904.641.1666 www.stenner.com
continued
Pump
Input
4 5
6 7
4-20mA Pulse/
Standby 0-10VDC
IN PPM/Hall
+ − +
( ) ( ) ( signal)
+
( signal) signal
Leak Leak Flow
4-20mA
OUT OUT Detect Detect
Detect
− +
( )
( ) External External
14 15 16 17
Controller
Open Collector Output
8 9 10
Hall
Signal
+
Common 12VDC
Flow Flow
Detect Detect
− +
( ) 12VDC
18 19 20
71
Pump
Input