SIMON RWA ESM-T/X-EV, Installation Manual

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Installation manual ESM-T/X-EV (24 A / 48 A / 72 A) Page 9/20
SIMON RWA SYSTEME GmbH, Passau
ESM-T/X-EV with power supply
Fault indications and causes
Besides of the already described monitorings the power supply, EV-** carries out any more checkings, that lead to a fault or
status indication.
Fault status: Emergency current mode (in consequence of mains failure resp. undervoltage at the mains input)
Indication at the control
electronics, LB-1*0
Fault description Possible cause
LED “mains” LED “O.K.”
No accu is connected off off Check the wiring to the accu.
Procedure
Fault status: Emergency current mode (in consequence of overcharging of a switching power supply, SNT-120)
Indication at the control
electronics, LB-1*0
Fault description Possible cause
LED “mains” LED “O.K.”
off off
Procedure
Fault status: Defective accu fuses
Fault description
Possible cause
Procedure
One of the accu fuses is defective
Fault status: Defective charging fuse
Fault description Possible causes Procedure
on blinks
Indication at the control
electronics, LB-1*0
LED “mains” LED “O.K.”
on blinks
Indication at the control
electronics, LB-1*0
LED “mains” LED “O.K.”
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®
Disconnect the output wire from the power
supply, EV-**. Afterwards the switching
power supply has to be gradually increased
again immediately (LED-indication at SNT-
120). If the accu fuse is defective the LED
O.K. at the control electronics will start to
blink. => replace the accu fuses. Control the
short circuit source before connecting the
EV-** to the SHEV system.
Check the glass fuse (3,15 A) at the control
electronics, LB-1*0. If that is defective,
replace it by a new fuse (enclosed at the
EV-**).
Emergency current mode - but the
SHEV system doesn’t work
Emergency current mode - but the
SHEV system doesn’t work. Mains
voltage (230 V) is available. The output of the power supply, EV-
** is short circuited. The switching
p o w e r s u p p l y , S N T- 1 2 0
electronically switches off the
power (the accu fuse is defective).
The SHEV system works, but the fault
indication LED ´O.K.´ blinks Check optically, if one of the accu fuses is
defective and replace it if necessary by a new
fuse (enclosed to the EV-**)
The charging fuse is defective
(glass fuse). The SHEV system works, but the fault
indication LED ´O.K.´blinks