Insulation alarm relay (Ins. Al. Relay)
You can set the insulation alarm relay mode depending on the status of insulation.
The allowed values for this parameter are FS and Std.. The default value is FS.
When the insulation alarm relay is configured in failsafe (FS) mode:
-
The insulation alarm relay is activated, that is, energized, in the following case:
-
No insulation fault is detected.
-
Transient fault is detected.
-
Insulation fault is detected and acknowledged (if ON). (See Insulation alarm relay acknowledgement (Ack Al. Relay))
is set to
-
-
The insulation alarm relay is deactivated, that is, de-energized, in the following cases:
-
First measurement
-
Insulation fault is detected.
-
Insulation fault is detected and acknowledged (if OFF). (See Insulation alarm relay acknowledgement (Ack Al. Relay))
is set to -
Corrected insulation fault signal: the insulation fault relay toggles for 3 seconds when an insulation fault is detected, acknowledged, and then corrected in the system. (See Corrected insulation fault signal (Corr. Flt. Signal))
-
When you trigger an auto-test with relays, the relay toggles for 3 seconds.(See Test with relays (Test w. Relays))
-
Injection is inhibited (if ON).
(See is set to Acknowledge inhibition (Ack Inhibit.)) -
The auxiliary power supply is lost.
-
Product error
NOTE: Auto-test failure state is identified as product error. -
System error
NOTE:The following states are identified as system error:
-
Disconnected injection
-
Over voltage
-
Over capacitance
-
-
When the insulation alarm relay is configured in Standard (Std) mode:
-
The insulation alarm relay is activated, that is, energized, in the following case:
-
Insulation fault is detected.
-
Insulation fault is detected and acknowledged (if OFF). (See Insulation alarm relay acknowledgement (Ack Al. Relay))
is set to -
Corrected insulation fault signal: the insulation fault relay toggles for 3 seconds when an insulation fault is detected, acknowledged, and then corrected in the system. (See Corrected insulation fault signal (Corr. Flt. Signal))
-
When you trigger an auto-test with relays, the relay toggles for 3 seconds.(See Test with relays (Test w. Relays))
-
Injection is inhibited (if ON) (See Acknowledge inhibition (Ack Inhibit.))
is set to -
Product error
NOTE: Auto-test failure state is identified as product error. -
System error
NOTE:The following states are identified as system error:
-
Disconnected injection
-
Over voltage
-
Over capacitance
-
-
-
The insulation alarm relay is deactivated, that is, de-energized, in the following cases:
-
First measurement
-
No insulation fault is detected.
-
Insulation fault is detected and acknowledged (if ON). (See Insulation alarm relay acknowledgement (Ack Al. Relay))
is set to -
Transient fault is detected.
-
The auxiliary power supply is lost.
-