Newbie seeking help: ZSC, ZSO, ZSH, ZSL
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What do ZSC, ZSO, ZSH, and ZSL mean respectively? Thank you.
ZSC: Position switch (off); ZSO: Position switch (on); ZSH: High alarm for shaft thrust; ZSL: Low alarm for shaft thrust
ZSH and ZSL indicate the open and closed states of the on/off valve controlled by the solenoid valve, respectively
ZSC valve is the off switch, ZSO valve is the on switch, ZSH is the high-level switch, and ZSL is the low-level switch.
ZSC: Valve position switch (off) ZSO: Valve position switch (on) ZSH: Valve position switch (high) ZSL: Valve position switch (low) ZLO: Valve position indicator (on) ZLC: Valve position indicator (off). You’ll understand it by looking at the first page of the flowchart; there are explanations there