Invertek Drives Optidrive HVAC Series, Руководство пользователя

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Optidrive ODV ‐ 2 User Guide Revision 1.00
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P8 ‐ 11 Bypass Mode on Fault (Enable)
Minimum 0 Maximum 1 Units ‐ Default 0
Parameter configures the drive to switch to bypass mode automatically should a trip occur on the drive. When enabled the drive
standard relays 1 and 2 are dedicated to bypass control and cannot be assigned other functions.
0 = Disabled
1 = Enabled
P8 ‐ 12 Bypass mode of Fire Enable
Minimum 0 Maximum 1 Units ‐ Default 0
Parameter configures the drive to switch to bypass mode automatically should an input to the drive be configured for Fire Mode
operation and that input becomes active. When enabled the drive standard relays 1 and 2 are dedicated to bypass control and
cannot be assigned other functions.
0 = Disabled
1 = Enabled
P8 ‐ 13 Bypass Contactor Changeover Time
Minimum 0 Maximum 30 Units Secs Default 2
Parameter active when Bypass function is enabled. Parameter P8 ‐ 05 sets a time delay or changeover time between the switching
of the drive relays controlling the bypass circuitry.
Care must be taken when setting P8 ‐ 13 to ensure that drive and DOL contactors are not switched in circuit simultaneously.
Both Mechanical and Electrical interlocking of drive and DOL contactors to regional standards are recommended in configuring
the Bypass function.
Note: For full detail on the Bypass Mode function see section 13.7, Bypass Control Function, or contact your local Invertek distributor
P8 ‐ 14 Pump Staging Function Select
Minimum 0 Maximum 2 Units ‐ Default 0
Parameter enables the pump staging (cascade) function on the drive
0 = Disabled
1 = Single VFD with DOL Cascade (max 4 DOL pumps)
2 = Multiple Drive Cascade Master Drive (Only valid when drive set to Optibus master address, P5 ‐ 01 = 1)
P8 ‐ 15 Pump Staging DOL Pump Availability
Minimum 0 Maximum 4 Units ‐ Default 0
Parameter valid when P8 ‐ 14 is set to 1 or 2 to enable Pump Staging Function. P8 ‐ 15 set the number of DOL pumps (P8 ‐ 14 = 1) or
network slave drives (P8 ‐ 14 = 2) that are available in the Pump Staging application. Setting the value to 0 disables Pump Staging.
P8 ‐ 16 Pump Staging Duty Switch Over Time
Minimum 0 Maximum 1000 Units Hours Default 0
In order to balance run time (duty) on each pump in the Pump staging application and to ensure periodic operation of each pump
P8 ‐ 16 can be set with a time limit for pump switch over. When set to a value other than 0 (disabled) the operation of each staging
pump will be cycled to ensure the difference in duty between each pump does not exceed the time set in P8 ‐ 16
P8 ‐ 17 Pump Staging Switch In Speed
Minimum P8 ‐ 18 Maximum P1 ‐ 01 Units Hz / RPM Default 0
HVAC Optidrive upper speed Staging threshold. When the drive output increases beyond this threshold the next Staging pump is
switch on. The Pump staging settle time must then expire before additional staging pumps can be brought on or off line. Priority
for Staging pump switch on is always given to the pump with lowest run time accumulated.
P8 ‐ 18 Pump Staging Switch Out Speed
Minimum 0 Maximum P8 ‐ 17 Units Hz / RPM Default 0
HVAC Optidrive lower speed Staging threshold. When the drive output decreases below this threshold one of the Staging pumps
currently operating is switch off. The Pump staging settle time must then expire before additional staging pumps can be brought
on or off line. Priority for Staging pump switch off is always given to the pump with highest run time accumulated.
P8 ‐ 19 Pump Staging System Settle Time
Minimum 10 Maximum 600 Units Secs Default 10
Parameter sets a time delay for pump staging whereby, following switch in or switch out of a staging pump, further pumps are not
permitted to be switched in or out until this time period has elapsed. This parameter should be set to allow adequate settle time
between staging pump transitions.
P8 ‐ 20 Pump Staging Master Clock Reset
Minimum 0 Maximum 1 Units ‐ Default 0
Master drive in pump staging monitors and maintains duty run times for all available staging pumps. All clocks are available to
view in P0 ‐ 20. P8 ‐ 20 provides the master reset to all run time clocks used for Pump Staging Function (all clocks set to 0).
Note: For full detail of Pump Staging function configuration see section 13.1 and 13.2, or contact your local Invertek distributor
9.8. Parameter Group 9 – Advance drive control logic configuration
Menu group 9 parameters are detailed in the advanced user guide. They can be accessed through the drive keypad by setting advanced
security level access (P1 ‐ 14 = 201) or through the OptiTools Studio software suite.