Kohler Curtis F Series User Manual

4 — PROGRAMMABLE PARAMETERS
pg. 85
Return to TOC Curtis AC F2-A, F4-A, F6-A Motor Controllers – FOS 4.5 – April 2022
APPLICATION SETUP/EMERGENCY REVERSE (EMR) — EMR SUPERVISION MENU
PARAMETER ALLOWABLE RANGE DEFAULT DESCRIPTION
Supervision Enable
EMR_Supervision_Enable
0x34A4 0x00
On/Off
On/Off
On Enables or disables the EMR supervision function.
On = EMR supervision is enabled.
Off = EMR supervision is disabled.
To be compliant with the EN 13849 ratings, enable this parameter.
Tolerance
EMR_Supervision_Tolerance
0x34A3 0x00
0 – 24000 rpm
0 – 24000
500 rpm The tolerance window dened by the entry speed plus this speed,
ramp rate, and zero speed. Use this to mitigate nuisance faults.
Detection is due to application of the EMR switch or the VCL
function, Enable_Emer_Rev( ). See in Figure 24, Initial Speed *
(1 + Tolerance).
Ramp Delay
EMR_Supervision_Ramp_Delay
0x349D 0x00
0 – 1000 ms
0 – 1000
500 ms Determines how long from the time EMR = On before the speed
needs to move toward zero for EMR supervision. See in Figure 24,
Ramp Delay.
Ramp Rate
EMR_Supervision_Ramp_Rate
0x349E 0x00
0.1 – 30.0 s
100 – 30000
5.0 sec Determines the slowest ramp rate allowed during EMR direction
reversal without an EMR supervision fault. This ramp rate is the
number of seconds to transition from typical max speed to zero.
Figure 24
Emergency Reverse Supervision
Function
e EMR Supervision Limit curve, as shown by the red line in Figure 24, is framed by the initial
speed, the parameter EMR_Supervision_Tolerance, the parameter EMR_Supervision_Ramp_Delay, and
the parameter EMR_Supervision_Ramp_Rate. e blue line represents a normal EMR operation. If the
motor speed exceeds the red curve for more than 64 ms continuously, an EMR Supervision fault is
declared. See the Troubleshoot Chart, fault code 9-11.

Kohler Curtis F Series Specifications

General

Brand	Kohler
Model	Curtis F Series
Category	Controller
Language	English