Fault Indication By Flashing Code - Dold SAFEMASTER BH 5904.02/00MF2 Betriebsanleitung

Fault Indication By Flashing Code

The failure codes are displayed by a flashing sequence of the upper yellow
LEDs run1, run2. Flashing frequence: env. 0,5 s on, 0,05 s off, end od the
sequence: env. 2 s off. It is possible that the two processors show different
failure codes.
If a failure is displayed, the relays K1 and K2 are switched off.
The module BH 5904 shows 2 types of failure codes:
1. Failure type 1:
These failures are serious and do not allow further operation of the
module. They are indicated only by the LEDs run1 and / or run2 of the
module. The semiconductor outputs 48 and 58 are both switched off.
The module can only be reset by switching the power supply off and on
again.
2. Failure type 2:
This failure is concerning the function faults in conjunction with the
safety controller and / or the monitored valve. These faults are only
indicated on LED run1, the LED run2 stays on. The module locks
out except in the case when the feed back circuit of the controller is
interrupted. It can only be reset by switching the power supply off and
on again or by pressing the reset button.
Failure type 1
N o * ) Description
Internal module failure
0
(LEDs are continuously off)
5 Adjustment failure
Undervoltage detection
6 or
Overvoltage detection
7 Input failure
8 Failure on relays K1 or K2
9
10 Internal module failure
11
12
13 Internal module failure
14
*) No.: Number of flash pulses in a series
E. Dold & Söhne GmbH & Co. KG • D-78120 Furtwangen
dold-relays@dold.com • www.dold.com
Mesures et conseils
If both LEDs stay off, the module
is defective and has tobe repai-
red.
1) The settings of the 2
channels are not identically.
2) The selected setting is not
permitted.
1) Left LED is flashing:
The supply voltage dropped
below the permitted value
(< approx.0.85 U )
N
2) Right LED is flashing:
The supply voltage went over
the permitted value
(> approx.1.15 U + 5 %
N
residual ripple)
1) A short circuit has been
detected on the inputs of
the unit.
2) The 2 signals of a 2-channel
feed back circuitdo not corres-
pond (shortcircuit, broken wire
or other fault)
Check circuit and current.
Module has to be repaired.
Please try to evaluate the
circumstances that lead to this10
fault and check with the supplier
or manufacturer.
The module has to be repaired
Failure type 2
No.* ) Description
1 Valve starting failure
(no end position)
2 Setting failure
3 Feed back circuit interrup-
ted from safety controller
4 Contact reinforcement
failure
5 PLC-starting failure
6 Failure on reset button
*) No.: Number of flash pulses in a series
•
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28
Measures and notes
The valve has not reached it´s
end position within the adjusted
time. The unit has locked out.
The valve is not in initial
position when starting or has not
reached the initial position
after de-activation within the
adjusted time. The unit has
locked out.
The unit is again ready for start
as the feed back circuit is
closed, the valve has returnded
back to initial position within the
adjusted time and the starting
signal is off.
The reaction time for the external
relays was too long.
The unit has locked out.
Start is active, while it should be
inactive.
Reset button was activated
while switching on or has
been pressed for more then 3 s.
The unit has locked out. It can be
reset by releasing and pressing
again the reset button or by
switching the supply off and on
again.
BH 5904.02/00MF2 / 26.01.21 en / 306A