Gardner Denver DEB Series, Инструкция по эксплуатации

Страница: 13 / 20

13
Input Which Causes Cycle Steps When Alarm
Alarm Alarm Tower the Alarm May Be Activated
Number Description Operating (See Figure 4.6) (See Figures 4.7 & 4.8)
Mode Number Status Fixed Demand
Cycle Cycle
L1 Low Tower Pressure I0.0 Off 00-15 00-15
R1 Drying I0.1
L2 Early dew point I0.6 On NA 08
R2 breakthrough
L3 Failure to I0.0 On 03, 05-08, 03, 05-09,
R3 Depressurize I0.1 13 13
L4 Low or no Blower Pressure I0.2 Off 07,08 07-09
R4
L5 High Heater Element Regeneration I0.3 On 06-08 06-09
R5 Temperature
L6 Incomplete Heating I0.4 Off 14 14
R6 I0.5
L7 Failure to I0.0 Off 15 15
R7 Repressurize I0.1
L8 High Outlet Dew Point Analog input Dew point 08-15 08-15
Drying from dew point exceeds user
R8 monitor spec'd set point
6 Hour Cycle (3 Hour Drying Per Tower)
Fixed Cycle Step Length (Minutes)
Step One Stage Regeneration Two Stage Regeneration Step
Number (Standard) (Optional) Description
L00, R00 0.5 0.5 Open inlet valve to on-line tower
L01, R01 0.5 0.5 Close inlet valve to off-line tower
L02, R02 4.0 4.0 Depressurize off-line tower
L03, R03 0.5 0.5 Examine off-line tower pressure switch
L04, R04 0.5 0.5 Open purge valve
L05, R05 0.5 0.5 Examine off-line tower pressure switch
L06, R06 0.5 0.5 1st stage regeneration
L07, R07 50.0 50.0 1st stage regeneration (continued)
L08, R08 115.5 80.0 1st stage regeneration (continued)
L09, R09 0.5 0.5 1st stage regeneration extended for demand cycle
L10, R10 N/A 1.0 Partially pressurize off-line tower to seat purge check valve
L11, R11 N/A 2.0 Depressurize off-line tower
L12, R12 N/A 0.5 Open purge valve
L13, R13 N/A 32.0 2nd stage regeneration
L14, R14 6.5 6.5 Repressurize off-line tower
L15, R15 0.5 0.5 Examine off-line tower pressure switch
Total 180.0 180.0 Drying time per tower
Figure 4.10 - Alarms
If the dryer has one stage regeneration (standard), steps 10 through 13 are skipped.
Under DEMAND cycle operation, steps L09, R09, L15, and R15 are variable length. The minimum time is shown above for these steps and for the drying time per tower.
Figure 4.9 - Operating Schedule: Cycle Times