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BENSHAW RSi H2P Series Instruction Manual

Variable frequency drive
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890053-02-00
©
2020 Benshaw Inc.
Benshaw retains the right to change specifications and illustrations in text without prior notification.
The contents of this document may not be copied without the explicit permission of Benshaw.
RSi H2P Series
Variable Frequency Drive
With
Pump Lead Lag Software
1.0 to 25 HP - 230V
1.0 to 800 HP - 460V
Instruction Manual
Page 1 of 2

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Summary of Contents for BENSHAW RSi H2P Series

  • Page 1 Instruction Manual 890053-02-00 © 2020 Benshaw Inc. Benshaw retains the right to change specifications and illustrations in text without prior notification. The contents of this document may not be copied without the explicit permission of Benshaw. Page 1 of 2...

  • Page 3: Table Of Contents

    INDEX INDEX ................................ i Introduction ............................1 Lead/Lag Descriptions ........................ 1 Lead/Lag Characteristics ........................2 Terminology and Definitions ....................... 2 Characteristics of Lead/Lag Operation ..................2 LCD Display/Keypad ......................... 3 Status ............................3 Monitor Screen ........................... 3 HAND-OFF-AUTO Buttons - Operation ..................4 Start/Stop Control ........................
  • Page 4 Alternate Time ..........................30 Priority Change based on User Setting Time ................31 Lead Change ..........................33 Standby ............................34 Sleep & Wake-Up......................... 36 18.1 Sleep Mode ..........................36 18.2 Sleep Boost ..........................36 18.3 Wake Up ........................... 36 Lost Feedback and High Feedback Settings ................38 19.1 Lost Feedback ..........................

  • Page 5: Introduction

    890053-02-00 1 Introduction The H2P Series drives with Pump software have an Application Group (AP1) of parameters that includes parameters to program the drive(s) to control multiple motors. Some of the multiple motor control functions included are Lead/Lag (with Fixed Lag or Follow Lead), Alternation (FIFO & FILO settings), Staging and De-staging settings, Run Priority (order) and Jockey Pump control.

  • Page 6: Lead/Lag Characteristics

    890053-02-00 2 Lead/Lag Characteristics Terminology and Definitions Lead (+) Drive - The drive that controls communications of the entire system. Note the designation of ◼ (“+”) for the Lead (+) drive. There is only one Lead (+) drive. The Lead (+) drive is a drive that receives transducer feedback.

  • Page 7: Lcd Display/Keypad

    890053-02-00 3 LCD Display/Keypad Status During operation, each drive will display its operating status at the top center of the LCD display. Examples are: Lead (+) drive running Forward is displayed as “F1+”. Lag drive stopped and in standby mode is displayed as “S0-“. Other Status indication includes: STP - Stopped, not in Run Mode SLP - Sleep Mode...

  • Page 8: Hand-Off-Auto Buttons - Operation

    890053-02-00 HAND-OFF-AUTO Buttons - Operation AUTO Button Start-Stop control is from the AUTO button on the LCD display/keypad. A separate input to the P1 terminal (Fx start command) is not required. The AUTO button will start and stop each of the drives. Press OFF ->...

  • Page 9: Transducer And Communications Wiring

    890053-02-00 4 Transducer and Communications Wiring The below connection diagrams show wiring for a 2 pump (duplex) system using a single transducer connected to a single drive and also a single transducer connected to multiple drives (4-20mA Loop). Alternately, a separate transducer can be connected to each drive. The difference between the two diagrams is;...

  • Page 10: Parameter Setup

    890053-02-00 5 Parameter Setup Follow the steps below to setup H2P drives to operate as a Lead/Lag system. The H2 Pump Software (H2P) has a macro group of parameters (MC2 Group) that includes settings for multiple drive / multiple motor control. The MC2 Group includes parameters from other groups, including AP1 Group, PID Group and others.

  • Page 11: Macro 2 Group (Mc2)

    890053-02-00 6 Macro 2 Group (MC2) This table lists parameters in the macro group (MC2). It includes the MC2 group parameter number cross referenced to the original drive parameter along with default settings for Lead/Lag operation. The Notes provide a brief description of the parameter settings.
  • Page 12 890053-02-00 Data Macro Original LCD Display Setting Range Default Unit NOTES Parameter Parameter share Trip Manual Interlock Standby Lead-Lag View MC2-22 AP1-47 Sleep Manual Shows status of specific drive. Status Only Stop Ready Proc PID Constant No - When Lead (+) drive run command is removed, the Lead (+) de-stages per MC2-13 Delay Time.

  • Page 13: Additional Parameters

    890053-02-00 Data Macro Original LCD Display Setting Range Default Unit NOTES Parameter Parameter share Amount (deviation) of feedback below Setpoint MC2-43 PID-65 0~Unit Band WakeUp0Dev MC2-32 (PID-11) to wake up. None None: Disable Lost Feedback monitoring. Warning Warning to alert of Lost (or Low) Feedback Level. MC2-44 AP2-55 Lost Fdb Mode...

  • Page 14: Control Related Parameters

    890053-02-00 Control Related Parameters These parameters have different default settings for Lead/Lag control. Control Related Parameters - Defaults for Lead Lag Data Macro Original LCD Display Setting Range Default Unit NOTES Parameter Parameter share 0 0000 0000 – 1 1111 1111 With first bit set to "1", Drive is in Run Mode A Terminal when Powered Up.

  • Page 15: Application Group 1, Ap1 Parameter List

    890053-02-00 7 Application Group 1, AP1 Parameter List The AP1 Group includes many of the parameters used in the Lead/Lag macro group (MC2). All parameters in the AP1 Group are listed below. Parameter settings and descriptions are provided in Section 8, Application Group 1, AP1 Parameter Descriptions.
  • Page 16 890053-02-00 Parameter Name LCD Display Setting Range Default Property* Auxiliary motors stop delay Destage DT 0.0–3600.0 (sec) AP1-54 time None AUX Exchange AP1-55 Alternating mode selection Alternate Mode Exchange Main Exchange AP1-56 Alternate time interval Alternate Time 00:00–100:00 (hr:min) 24:00 AP1-57 Alternate frequency AlternateLevel...
  • Page 17 890053-02-00 Parameter Name LCD Display Setting Range Default Property* Pump 4 Pump 5 Pump 6 Pump 7 Pump 8 Operation time (Day) of AP1-96 Auxiliary motor selected in PmpRunTime Day 0 – 65535 [AP1-95] Operation time of Auxiliary AP1-97 motor selected in [AP1-95] PmpRunTime Min 00:00 - 23:59 (hr:min)

  • Page 18: Application Group 1, Ap1 Parameter Descriptions

    890053-02-00 8 Application Group 1, AP1 Parameter Descriptions Parameter Description • No - Disables Pre-PID and Soft Fill • Yes - There are two separate operations. Setting AP1-20 to "Yes" enables both Pre-PID and Soft Fill operations. ▪ First: Pre-PID based on AP1-21 (Pre-PID Frequency) and AP1-22 (Pre-PID Delay Time). The drive will AP1-20 simply ramp to the AP1-21 Frequency and remain there for the AP1-22 Time.
  • Page 19 890053-02-00 Parameter Description ▪ Fixed Lag: This is a Lead/Lag control method with one PID-controlled Main drive and all of the Lag drives operate at a fixed frequency. See parameter AP1-60, Lag Freq. Drives with this setting can become a leader drive but must also have PID feedback connected. See Section 10, Lead/Lag - Fixed ▪...
  • Page 20 890053-02-00 Parameter Description second. Operation is in the order of 1-2-3-4. ⚫ For MMC (Contactor Lag) AP1-47 / MC2-22 ◼ The parameter is not used. Lead Lag Status ⚫ For Follow Lead, Fixed Lag, Network Fbk (View Only) ◼ It displays current Lead/Lag operation status of the specific drive (Trip, Manual, Interlock, Standby, Sleep, Stop, Ready, Proc PID or Constant).
  • Page 21 890053-02-00 Parameter Description ◼ Aux Acc Time Sets the acc. time of Main drive (motor) when Aux Motor stops. ⚫ For Follow Lead, Fixed Lag, Network Fbk ◼ The parameter is not used. ⚫ For MMC (Contactor Lag) ◼ AP1-52 It sets the decel time of Main drive (motor) when Aux Motor starts.
  • Page 22 890053-02-00 Parameter Description ⚫ For MMC (Contactor Lag), it sets alternating operation. ◼ None ◆ Alternate operation is not activated. ◼ Aux Exchange ◆ Alternate operation is activated for AUX motors only, excluding the Main motor. ◼ Main Exchange ◆ Alternate operation is activated for AUX motors and includes the Main motor.
  • Page 23 890053-02-00 Parameter Description ◼ For PID-36 set to “Yes” (Inverse PID), it is deviation below setpoint. ⚫ For Network Fbk ◼ The parameter is not used. ⚫ AP1-60 / MC2-15 For Fixed Lag only ◼ Lag Freq Sets the operating frequency of the Lag motors. ⚫...
  • Page 24 890053-02-00 Parameter Description ⚫ All CommErr For MMC (Contactor Lag) ◼ The parameter is not used. ⚫ For Follow Lead and Fixed Lag ◼ {Comm Err!!} Trip is triggered only for drive with communication error. ◼ {Comm Err!!} Trip is triggered for all drives when communication error occurs. ⚫...
  • Page 25 890053-02-00 Parameter Description ⚫ AP1-89 / MC2-27 Sets the delay time to stop Jokey pump. ⚫ Jockey Dly T For MMC (Contactor Lag) and Network Fbk ◼ The parameter is not used. ◼ AP1-90 (Interlock) Yes/No Ext. Mtr OL ⚫ AP1-91 (Interlock) Sets the delay time when exchanging the Main motor.

  • Page 26: Lead/Lag - Follow Lead

    890053-02-00 9 Lead/Lag - Follow Lead Control Mode for multiple drives where the Main drive is PI controlled all running Lag (Aux) drives/motors operate at the same PID output frequency as the Main drive. During staging/de-staging, a shift of the Main PI controlled drive occurs.

  • Page 27: Follow Lead - Conditions For De-Staging Lag Drives

    890053-02-00 Follow Lead - Conditions for De-staging Lag Drives 1. Feedback is above the setpoint PID-11 (PID Ref 1 Set). 2. Output Frequency of the Main drive reached the De-stage frequency AP1-70 (Destage Freq 1) for the Lag drive. 3. The De-Stage delay time AP1-54 (Destage DT) has expired. Follow Lead - De-staging Details Three drives/motors/pumps are running and Drive 3 is the Main PI controlled drive.

  • Page 28: Lead/Lag - Fixed Lag

    890053-02-00 10 Lead/Lag - Fixed Lag Control Mode for multiple drives where the Main drive is PI controlled and all Lag (Aux) drives/motors operate at a fixed frequency, AP1-60 (Lag Freq). During staging/de-staging, a shift of the Main PI controlled drive occurs. With actual feedback wired to Drive 1 only, Drives 2 and 3 receive the feedback signal through Modbus communications.

  • Page 29: Fixed Lag - Conditions For De-Staging Lag Drives

    890053-02-00 10.3 Fixed Lag - Conditions for De-staging Lag Drives 1. Feedback is above the setpoint PID-11 (PID Ref 1 Set). 2. Output Frequency of the Main drive reached the De-stage frequency AP1-70 (Destage Freq 1) for the Lag drive. 3.

  • Page 30: Priority Change Based On Operation Time

    890053-02-00 11 Priority Change based on Operation Time When Alternating Sequence, AP1-49 (ALT Sequence) is set to operating time (Op time Order), the run priority of each drive/motor/pump is automatically arranged according to its operating time. Run priority can be viewed at parameters AP1-45 (Curr.

  • Page 31: Jockey Pump

    890053-02-00 12 Jockey Pump "Jockey Pump" refers to a pump whose purpose is to maintain the pressure in a system at a specific level when there are pressure losses in the pipe system due to light usage or no usage. It prevents frequent starting of the main pumps.
  • Page 32 890053-02-00 Jockey Pump Operation - Staging Details With the start of Drive 1 which is the Jockey Pump Lead (+) drive, the speed ramps up because of the low feedback. If the feedback pressure had increased above the setpoint (not shown), Drive 1 would decelerate to a stop and other motors would not run.

  • Page 33: Interlock Trip

    890053-02-00 13 Interlock Trip The Interlock feature can be used to enable and disable each drive. A digital input can be set to Interlock 1 ~ 8 based on drive ID (COM-01). Connect a normally closed interlock (switch or other trip mechanism) between the digital input and CM.

  • Page 34: Alternate Time

    890053-02-00 14 Alternate Time This function changes (alternates) the running order (priority) of the drives/motors based on the time set in parameter AP1-56 (Alternate Time). The amount of time (before alternation occurs), can be viewed at AP1-58 (Alt Timer Disp). When the AP1-58 time reaches the set time AP1-56, run priority is changed and the drives are alternated.

  • Page 35: Priority Change Based On User Setting Time

    890053-02-00 15 Priority Change based on User Setting Time Parameter AP1-98 (PumpRunTime Clr) can be used to clear operating times of individual drives/motors or all drives/motors. Macro Original Name LCD Display Setting Range Default Parameter Parameter Operation time (Day) of Auxiliary MC2-29 AP1-96 PmpRunTime Day...
  • Page 36 890053-02-00 Priority for operating motors/pumps - The table below shows a case where the operating time of Drive ID 2 was cleared at Step 2 and priority changed to Priority 1 (lowest operating time). Then, at Step 3, the pump run time for Drive ID 2 was set to 2:00 minutes and priority changed to Priority 3.

  • Page 37: Lead Change

    890053-02-00 16 Lead Change ⚫ Below describe the conditions when the Lead (+) Drive will change. Lead (+) drive is designated by a “+” on the LCD display (F1+) and controls communications among all drives. Also, for Lag drives to become the Lead (+) drive, they must be connected with the feedback signal from the transducer.

  • Page 38: Standby

    890053-02-00 17 Standby ⚫ Standby drives are definitely part of the Lead/Lag system but are not required to operate for normal Lead/Lag system operation. Example: A Lead/Lag system requires 3 drives for normal operation. There are 5 drives connected in the system. Two of the drives are designated as Standby drives. Standby drives will be operated when certain conditions occur within the Lead/Lag system.
  • Page 39 890053-02-00 ◼ Standby Operation when alternating sequence AP1-49 (ALT Sequence) is set to Op Time Order. Standby drives with lower operating times than the running drives, are brought into the Lead/Lag operation. The new priority order is based on the operating time. ◆...

  • Page 40: Sleep & Wake-Up

    890053-02-00 18 Sleep & Wake-Up 18.1 Sleep Mode When the system pressure is high enough (feedback is above setpoint) and the Main drive output frequency is decreasing, the Lag drives will stop based on the alternating sequence AP1-49 (ALT Sequence). With only the Main drive running, it will eventually go into Sleep mode.
  • Page 41 890053-02-00 Sleep Mode - Sleep Boost - Wake Up Symptom: If Drives/pumps cycle on and off and do not get up to speed. Cause: Sleep and Wake Up settings. Solution: 1. Extend Sleep Delay Time (MC2-40 / PID-62) longer than Accel Time (MC2-09 / DRV-03). Solution 2: Increase PID-25 (Proportional gain %) to improve response.

  • Page 42: Lost Feedback And High Feedback Settings

    890053-02-00 19 Lost Feedback and High Feedback Settings The Lead/Lag macro includes functions to monitor the feedback signal and detect both a lost (or low) feedback signal and a high feedback signal. The default settings for both when exceeded cause a latched fault which may not be appropriate for all applications.

  • Page 43: Data Share

    890053-02-00 20 Data Share The Data Share function saves time when entering parameter settings. Set parameters in the Macro Group (MC2) at the Lead (+) drive and the same parameters will be changed in all the Lag drives connected via communications in the Lead/Lag system.

  • Page 44: Troubleshooting Communication Problems In Lead/Lag Operation

    890053-02-00 21 Troubleshooting Communication Problems in Lead/Lag Operation ⚫ Communication problems may occur with the following conditions: ◼ Power Disconnection or Short Circuit. ◼ IO Board Trip. ◼ When the alternating sequence AP1-40 (Lead Lag Sel) is changed. ◼ When changing the Drive ID COM-01 (Int485 St ID). ◼...
  • Page 45 890053-02-00...

  • Page 46: Revision History

    890053-02-00 22 Revision History Manual Software View Rev. Date Edition Changes Version Date Parameter DRV-96 202.00 Main 11/26/2020 Pump CNF-10 11/2021 Lead Initial Release DRV-98 201.00 9/16/2020 CNF-12...
  • Page 47 BENSHAW 615 Alpha Drive Pittsburgh, PA 15238 Phone: (412) 968-0100 Fax: (412) 968-5415 BENSHAW Canada 550 Bright Street Listowel, Ontario N4W 3W3 Phone: (519) 291-5112 Fax: (519) 291-2595...

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