Yaskawa iQpump Controller Programming Manual Manuel d'utilisateur télécharger pdf (Page 206)

206 YASKAWA TM.iQp.07 iQpump Controller Programming Manual

◆ P4-22 Low City Pressure Input Delay <0034>

Setting Range: 1 ~ 1000 s

Factory Default: 10

Refer to parameter P4-22 in Appendix A for description details.

◆ P4-23 Lube Pump Delay Timer <0034>

Setting Range: 0.0 ~ 300.0 s

Factory Default: 0.0

The Lube Pump Delay Timer parameter provides a digital output to trigger a lube pump or valve prior to starting the motor.

Whenever the drive is supposed to start turning the motor, the “Lube Pump” digital output will energize for a set amount of time before

the drive actually starts. This will allow a small lubrication pump or valve to pre-lubricate the pump seals prior to the main pump

starting.

If the drive is running but base-blocked via the multi-function digital inputs (H1-0x = 8 or 9), the lube pump output will not energize

when the base-block is released.

■ Function Description: <0034>

Lube Pump: The Lube Pump function will operate anytime the drive is going to accelerate from zero speed. Instead of starting, the drive

will remain base-blocked at zero speed until the lube pump timer expires. The lube pump timer is configured by parameter P4-23. If

parameter P4-23 is set to zero then the lube pump feature is disabled. Whenever the lube pump timer is timing (after a start or re-start),

the Lube Pump digital output (H2-0x = 55) will be energized. This digital output is meant to connect to a small lubrication pump or

solenoid valve that will lubricate the main pump bearings.

If an Anti-Jam is detected, the Lube Pump will NOT activate between Anti-Jam retries.

Figure 1.156

Figure 160. Lube Pump Enabled

Internal Run

Command

Output

Frequency

P4-23

Lube Pump Time

Lube Pump

Running / DO

NOTE: Internal Run Command consists of the actual run command (auto run , hand , terminals , serial com, operator

etc..) and other Iqpump features , including : sleep, fault auto-restart, 2-motor alternate , multiplex control , run /stop

control, city pressure, etc...

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Yaskawa iQpump Controller Programming Manual Manuel d'utilisateur Page 206