[56]
DigiPot Decrease
Uses the input as a DECREASE signal to the digital potentiometer function described in parameter
group 3-9*.
[57]
DigiPot Clear
Uses the input to CLEAR the digital potentiometer reference described in parameter group 3-9*.
[60]
Counter A (up)
(Terminal 29 or 33 only) Input for increment counting in the SLC counter.
[61]
Counter A (down)
(Terminal 29 or 33 only) Input for decrement counting in the SLC counter.
[62]
Reset Counter A
Input for reset of counter A.
[63]
Counter B (up)
(Terminal 29 and 33 only) Input for increment counting in the SLC counter.
[64]
Counter B (down)
(Terminal 29 and 33 only) Input for decrement counting in the SLC counter.
[65]
Reset Counter B
Input for reset of counter B.
[66]
Sleep Mode
Forces the adjustable frequency drive into sleep mode (see par. 22-4*, Sleep Mode). Reacts to the
rising edge of signal applied!
[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
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
Start
[8]!
[121]
Lead Pump Alternation
Forces the alternation of the lead pump in a cascade controller.
Lead Pump Alternation
, par. 25-50,
must be set to either
At Command
[2] or
At Staging or At Command
[3].
Alternation Event
, par.
25-51, can be set to any of the four options.
[130 - 138] Pump1 Interlock - Pump9 Interlock
For the above 9 setting options, par. 25-10, Pump Interlock, must be set to
On
[1]. The function
will also depend on the setting in par. 25-06, Fixed Lead Pump. If set to
No
[0], Pump1 refers to
the pump controlled by relay RELAY1, etc. If set to
Yes
[1], Pump1 refers to the pump controlled
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*
Setting in Par. 25-06
[0] No
[1] Yes
[130] Pump1 Interlock
Controlled by RELAY1
(only if not lead pump)
Adjustable frequency drive
controlled
(cannot be interlocked)
[131] Pump2 Interlock
Controlled by RELAY2
Controlled by RELAY1
[132] Pump3 Interlock
Controlled by RELAY3
Controlled by RELAY2
[133] Pump4 Interlock
Controlled by RELAY4
Controlled by RELAY3
[134] Pump5 Interlock
Controlled by RELAY5
Controlled by RELAY4
[135] Pump6 Interlock
Controlled by RELAY6
Controlled by RELAY5
[136] Pump7 Interlock
Controlled by RELAY7
Controlled by RELAY6
[137] Pump8 Interlock
Controlled by RELAY8
Controlled by RELAY7
[138] Pump9 Interlock
Controlled by RELAY9
Controlled by RELAY8
5-13 Terminal 29 Digital Input
Option:
Function:
[0] *
No Operation
Same options and functions as par. 5-1*
Digital Inputs
.
VLT
®
AQUA Drive
Instruction Manual
8 How to program the adjustable frequency
drive
MG.20.M5.22 - VLT
®
is a registered Danfoss trademark
8-23
8