Graco Lube Sentinel II Instructions Manual page 7

Terminals 21 - 23, Power Failure Relay:
The power-fail relay is a single-pole, single-throw
(SPST) relay rated for 0.5 ampere at 125 VAC or 1.0
ampere at 30 VDC. Terminals are to Form "C" contacts:
21 (nc), 22 (com) and 23 (no). This relay will be ener-
gized as long as power supply voltage is active (F
Terminal Strip Left Side Bottom - Sensor Inputs
Terminals Sensor Inputs
+25 & -26 For Factory Use
+27 & -28 Tachometer Input
+29 & -30 Bypass Zone 2
+31 & -32 Bypass Zone 1
+33 & -34 Reset Alarm
+35 & -36 Cycle Switch Zone 2
+37 & -38 Cycle Switch Zone 1
F . 6: Typical Input Devices
IG
313903B
. 5).
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F . 5: Power Failure Relay Connections
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Installation
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