Danfoss vlt AQUA Instruction Manual page 93

®
VLT AQUA Drive
Instruction Manual
[56] DigiPot Decrease
[57] DigiPot Clear
[60] Counter A (up)
[61] Counter A (down)
[62] Reset Counter A
[63] Counter B (up)
[64] Counter B (down)
[65] Reset Counter B
[66] Sleep Mode
[78] Reset Preventive Maintenance Word Resets all data in par. 16-96, Preventive Maintenance Word, to 0.
The setting options below are all related to the cascade controller. For wiring diagrams and settings for parameter, see group 25-** for more details.
[120] Lead Pump Start
[121] Lead Pump Alternation
[130 - 138] Pump1 Interlock - Pump9 Interlock
5-13 Terminal 29 Digital Input
Option:
[0] * No Operation
Uses the input as a DECREASE signal to the digital potentiometer function described in parameter
group 3-9*.
Uses the input to CLEAR the digital potentiometer reference described in parameter group 3-9*.
(Terminal 29 or 33 only) Input for increment counting in the SLC counter.
(Terminal 29 or 33 only) Input for decrement counting in the SLC counter.
Input for reset of counter A.
(Terminal 29 and 33 only) Input for increment counting in the SLC counter.
(Terminal 29 and 33 only) Input for decrement counting in the SLC counter.
Input for reset of counter B.
Forces the adjustable frequency drive into sleep mode (see par. 22-4*, Sleep Mode). Reacts to the
rising edge of signal applied!
Starts/stops the lead pump (controlled by the adjustable frequency drive). A start requires a system
start signal also be applied, e.g., to one of the digital inputs set for
Forces the alternation of the lead pump in a cascade controller.
At Command
must be set to either
25-51, can be set to any of the four options.
For the above 9 setting options, par. 25-10, Pump Interlock, must be set to
will also depend on the setting in par. 25-06, Fixed Lead Pump. If set to
the pump controlled by relay RELAY1, etc. If set to
by the adjustable frequency drive only (without any of the built-in relays involved) and Pump2 to
the pump controlled by the relay RELAY1. Variable speed pump (lead) cannot be interlocked in the
basic cascade controller.
See table below:
Setting in Par. 5-1*
[130] Pump1 Interlock
[131] Pump2 Interlock
[132] Pump3 Interlock
[133] Pump4 Interlock
[134] Pump5 Interlock
[135] Pump6 Interlock
[136] Pump7 Interlock
[137] Pump8 Interlock
[138] Pump9 Interlock
Function:
Same options and functions as par. 5-1*
®
MG.20.M5.22 - VLT is a registered Danfoss trademark
8 How to program the adjustable frequency
Start
Lead Pump Alternation
At Staging or At Command
[2] or [3].
Yes
[1], Pump1 refers to the pump controlled
Setting in Par. 25-06
[0] No
Controlled by RELAY1 Adjustable frequency drive
(only if not lead pump)
(cannot be interlocked)
Controlled by RELAY2 Controlled by RELAY1
Controlled by RELAY3 Controlled by RELAY2
Controlled by RELAY4 Controlled by RELAY3
Controlled by RELAY5 Controlled by RELAY4
Controlled by RELAY6 Controlled by RELAY5
Controlled by RELAY7 Controlled by RELAY6
Controlled by RELAY8 Controlled by RELAY7
Controlled by RELAY9 Controlled by RELAY8
Digital Inputs
.
drive
[8]!
, par. 25-50,
Alternation Event
, par.
On
[1]. The function
8
No
[0], Pump1 refers to
[1] Yes
controlled
8-23