Danfoss VLT Safety Option MCB 150 User Manual

Table 31: Overview of Errors 114–135
Error
num-
ber
Description LED indicators
LED1 LED2 LED4
Internal failure Reason Action Green con-
stant
114 Ext Fail DI2: Re-
action STO
• Safety input
connected to
DI2 has illegal
signal level.
• Sensor is bro-
ken.
• Check that con-
figuration of DI2
parameter 42-21
Type is set cor-
rectly or the
connected sen-
sor is installed
according to the
specification.
• Extend discrep-
ancy time on
safe input tab in
MCT 10 safe
plug-in parame-
ter 14-22 Opera-
tion Mode.
Status depends on
safety function
state assigned to
DI1.
Red constant. Red flashing,
cycle (on
500 ms, off
500 ms)
115 Ext Fail Prec
Thresh Timer
Elapsed: Reac-
tion STO
The drive has been
running below
120 RPM for more
than the time en-
tered in parameter
42-18 Zero Speed
Timer with safe
function SLS active.
Increase speed to
above 120 RPM.
Status of LED 1 and LED2 depends on
safety function state assigned to DI1
and DI2.
Red flashing,
cycle (on
500 ms, off
500 ms)
116 Ext Fail SF acti-
vation Speed
Suspension:
Reaction STO
The drive has been
running below
120 RPM for more
that 1 year and a
safety function that
need speed feed-
back is activated.
Increase speed to
above 120 RPM.
Red flashing,
cycle (on
500 ms, off
500 ms)
134 Int fail speed
limit SLSa: Re-
action SS1a
See 70 See 70 Red con-
stant
135 Int fail speed
limit SLSb: Re-
action SS1a
See 70 See 70 Red con-
stant
Warnings and Alarms
Installation Guide | VLT® Safety Option MCB 150/151
AQ279747441421en-000101 / 130R0292
88 | Danfoss A/S © 2018.09

Danfoss VLT Safety Option MCB 150 Specifications

General

Brand	Danfoss
Model	VLT Safety Option MCB 150
Category	Control Unit
Language	English