Relay Outputs - Danfoss Cascade Operating Instructions Manual

Description of choice:
Set the desired ramp-up time. Too long of a ramp
up can cause sluggish drive operation. Too short of
a ramp up can cause the drive to go into current
limit during acceleration or cause unacceptable
torque pulses in the controlled system.
Quick Menu 010 Par. 207 Ramp-down time
(RAMP DOWN TIME)
Value:
1 - 3600 sec..
Function:
The ramp-down time is the deceleration time from
the rated motor frequency (parameter 104, Motor
frequency) to 0 Hz. This ramp-down time may be
automatically extended to prevent an overvoltage trip if
the load regenerates to the drive. This determines the
maximum deceleration rate for all modes of operation.
Description of choice:
Set the desired ramp-down time. Too long of a
ramp down can cause sluggish operation. Too
short of a ramp down can cause the drive to trip off
due to high DC bus voltage or cause unacceptable
torque pulses in the controlled system.

Relay outputs

Relay outputs 1 and 2 can be used to give the
present drive status or a warning.
If the output is used as a voltage output (0-10 V),
a pull-down resistor of 500
terminal 39 (common for analogue/digital outputs.
See chapter 10 for additional detail).
If the output is used as a current output, the
resulting impedence of the connected equipment
should not exceed 500 W.
32
Depends on unit
should be fitted to
Cascade Controller Option
Relay 1
1 - 3 break, 1 - 2 make Max. 240 VAC, 2 Amp. The
relay is with the main and motor terminals.
Relay 2
4 - 5 make Max. 50 VAC, 1 A, 60 VA. Max. 75 VDC,
1 A, 30 W. The relay is on the control card.
Quick Menu 011 Par. 323 Output relay 1
(RELAY 1 FUNCTION)
Value:
29 optional settings
Function:
This output activates relay switch 01. This 240 volt,
Form C relay can be used for status and warnings.
There are 29 optional settings. It is generally
programmed to provide a remote alarm indication.
No Alarm is the default setting. This indicates the
drive is operating properly and the contact is closed.
The contact opens to indicate an alarm when there
is a fault condition or when the drive looses power.
Terminal wires 1 and 3 are wired together.
Alarm is selected when a loss of power
should not cause an alarm indication. Wire
terminals 1 and 2 together.
See the VLT Operating Instructions for a
detailed list of relay options.
Description of choice:
Select relay 1 function.
MG.60.I3.02 - VLT is a registered Danfoss trademark
NO ALARM