Danfoss VACON 100 FLOW Series Application Manual page 266

VACON® 100 FLOW
Application Guide
When the Pump interlocking function (P3.15.5) is enabled, the drive reads the statuses of the digital inputs of the pump interlock
(feedback). When the input is CLOSED, the motor is available for the Multi-pump system.
When the Pump interlocking function (P3.15.5) is disabled, the drive does not read the statuses of the digital inputs of the pump
interlock (feedback). The Multi-pump system sees all pumps in the system as available.
• In the Single drive mode, the digital input signal that is selected with this parameter shows the interlock status of pump 1 in the
Multi-pump system.
• In the Multifollower and Multimaster modes, the digital input signal that is selected with this parameter shows the interlock
status of the pump that is connected to this drive.
11.17.4.13 (ID 427) Pump 2 Interlock
Location in the menu: P3.15.17.2
Use this parameter to select the digital input signal that is used as interlock signal for the multi-pump system.
11.17.4.14 (ID 428) Pump 3 Interlock
Location in the menu: P3.15.17.3
Use this parameter to select the digital input signal that is used as interlock signal for the multi-pump system.
11.17.4.15 (ID 429) Pump 4 Interlock
Location in the menu: P3.15.17.4
Use this parameter to select the digital input signal that is used as interlock signal for the multi-pump system.
11.17.4.16 (ID 430) Pump 5 Interlock
Location in the menu: P3.15.17.5
Use this parameter to select the digital input signal that is used as interlock signal for the multi-pump system.
11.17.4.17 (ID 486) Pump 6 Interlock
Location in the menu: P3.15.17.6
Use this parameter to select the digital input signal that is used as interlock signal for the multi-pump system.
11.17.4.18 (ID 487) Pump 7 Interlock
Location in the menu: P3.15.17.7
Use this parameter to select the digital input signal that is used as interlock signal for the multi-pump system.
11.17.4.19 (ID 488) Pump 8 Interlock
Location in the menu: P3.15.17.8
Use this parameter to select the digital input signal that is used as interlock signal for the multi-pump system.
These parameters are used in the Single drive mode only.
When the Pump interlocking function (P3.15.5) is enabled, the drive reads the statuses of the digital inputs of the pump interlock
(feedback). When the input is CLOSED, the motor is available for the Multi-pump system.
When the Pump interlocking function (P3.15.5) is disabled, the drive does not read the statuses of the digital inputs of the pump
interlock (feedback). The Multi-pump system sees all pumps in the system as available.
11.17.5 Overpressure Supervision
Use the Overpressure supervision function in a Multi-pump system. For example, when the primary valve of the pump system is
closed quickly, the pressure in the pipe lines increases. The pressure can increase too quickly for the PID controller. To prevent that
the pipes break, the overpressure supervision stops the auxiliary motors in the Multi-pump system.
11.17.5.1 (ID 1698) Enable Overpressure Supervision
Location in the menu: P3.15.18.1
Use this parameter to enable the Overpressure supervision.
The overpressure supervision monitors the feedback signal of the PID controller, that is, the pressure. If the signal becomes higher
than the overpressure level, it stops all the auxiliary pumps immediately. Only the regulating motor continues to operate. When the
pressure decreases, the system continues to operate, and connects the auxiliary motors again one at a time.
266 | Danfoss A/S © 2023.08
Parameter Descriptions
AB298035655957en-000201 / DPD01083