Danfoss VLT HVAC Series Programming Manual page 88

3 Parameter Description
3
[196] Fire Mode
[197] Fire Mode was act.
[198] Drive Bypass
The below setting options are all related to the cascade controller.
Wiring diagrams and settings for parameter, see group 25-** for more details.
[200] Full Capacity
[201] Pump1 Running
[202] Pump2 Running
[203] Pump3 Running
Setting in Par. 5-3*
[200] Pump 1 Running
[201] Pump 2 Running
[203] Pump 3 Running
5-30 Terminal 27 Digital Output
Option:
[0] * No operation
[1] Control ready
[2] Drive ready
[3] Drive rdy/rem ctrl
[4] Stand-by / no warning
3-64
The adjustable frequency drive is operating in fire mode. See parameter group24-0*
The adjustable frequency drive has been operating in fire mode, but is now back in normal operation.
To be used as signal for activating an external electromechanical bypass switching the motor direct
Drive Bypass
on line. See 24-1* .
If enabling the Drive Bypass function, the adjustable frequency drive is no longer
Safety Certified (for using the Safe Stop in versions where included).
All pumps running and at full speed
One or more of the pumps controlled by the cascade controller are running. The function will also
depend on the setting of in par.25-06
controlled by relay RELAY1 etc. If set to
adjustable frequency drive only (without any of the built-in relays involved) and Pump 2 to the pump
controlled by the relay RELAY1. See the table below:
See [201]
See [201]
Setting in par.25-06
[0] No
Controlled by RELAY1
Controlled by RELAY2
Controlled by RELAY3
Function:
Same options and functions as par. 5-3*.
MG.11.C6.22 - VLT ® is a registered Danfoss trademark
VLT ® HVAC Drive Programming Guide
Number Of Pumps No
. If set to [0] Pump 1 refers to the pump
Yes
[1], Pump 1 refers to the pump controlled by the
Number Of Pumps
[1] Yes
Adjustable frequency drive controlled
Controlled by RELAY1
Controlled by RELAY2
Fire Mode .