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Appendix B: Relay Timing
StartStop Mode
For generators with StartStop mode starting types (Types 4, 5, 9, 10):
• Relay 1 (Stop) and Relay 2 (Start) can be used with a common ground
for three-wire configured generators.
• If Relay 3 is configured for preheat, the signal only shows up on Relay
3.
• The Preheat on Relay 3 will not overlap the Crank Time if ShutDown
Bypass is not enabled.
• If the ShutDown Bypass is enabled, the Preheat on Relay 3 will remain
high for the Crank Time and for the ShutDown Bypass period after
cranking.
• The “Delay” refers to the “Preheat to Crank Delay” and may be zero.
• Cranking will cease when the generator run signal goes high for the
specified hold time or when the crank time has elapsed.
• To get the ShutDown Bypass on Relay 3 with no preheat, Relay 3 must
be configured for Preheat with ShutDown Bypass and have the Preheat
time set to zero.
• StartStop mode is essentially the same as GlowStop mode with no
preheat on Relay 1.
Figure 40
StartStop Mode Timing Diagram
Relay 1: Stop
Relay 2: Start (Cranking)
Relay 3: Preheat (Glow)
& Shutdown Bypass
Start
Stop
Preheat
Delay
Crank
Time
Shutdown
Bypass