Uniblitz N-CAS VINCENT ASSOCIATES VLM1, Руководство пользователя, Страница: 15 / 23

VLM1/VLM1B User Manual 15
CAUTION
Do not plug the remote cable into the SYNC Output
BNC, this could cause irreparable damage.
deactivates. The 710R or the 710R/f cannot be used when the Pulse Input BNC is reconfigured for
Active High.
BNC I/O Active State Selection
To set the active state of the PULSE Input and SYNC Output, you must access the unit’s printed circuit
board. For the
VLM1 , remove the screws holding the top and bottom housing halves together. Slide
the top housing cover off by pulling straight up. Note the jumper locations on the PCB located behind
each of the BNC modules. JMP1/JMP2 is for the PULSE Input and JMP3/JMP4 is for the SYNC
Output. You can change the PULSE Input active state to Active high by moving the jumper from JMP1
(A-L) to JMP2 (A-H). This is the same for the SYNC Output moving the jumper from JMP3 (A-H) to
JMP4 (A-L). See Figure #7 for these jumper locations. For the VLM1, replace the housing top half
ensuring the front and rear panel lines up with the vertical slots in the top cover. Replace the screws to
secure the top and bottom case halves together.
The procedure for changing the jumpers is the same for the VLM1B.
Please be sure the power is disconnected before attempting to change the jumpers.
Please read the entire manual carefully before attempting to operate the unit.
Fuse Information
The VLM1/VLM1B are protected by resettable fuses on the +5V Input Power ( PWR/COM
connector) and Shutter Actuator Coil (A) connection ( SHUTTER Pin #1).
If a fault occurs when the power supply is connected to the unit or when the shutter was operating
and then stops, it could be that the on-board resettable fuses have entered a fault condition. This fault
condition acts similar to the action of a blown fuse. Since the fuses’ open circuit condition is due to
an increase in internal temperature (causing a resistance increase in the circuit path), to reset them
please remove the unit from power and allow the unit to cool for 5-10 minutes. Upon restoration of
power the unit should return to normal operation. The unit uses two
Bel Fuse resettable surface
mount PTC fuse devices. This link will explain in detail the operation of these fuses in addition to
what is described herein. The SHUTTER Output Pin #1 uses a 0.35A, 16V PTC resettable fuse
(F2). The PWR/COM Input uses a 0.5A, 24V PTC resettable fuse (F1). The +5V Output
(SHUTTER Output) Pin #5 uses a 125mA, 125V F-A fuse (F3, non-serviceable).
CAUTION
Please note that a standard fast blow fuse protects the +5V Output
(SHUTTER Pin #5) – this is not user serviceable (F3 is soldered to
the main PCB) see Figure #7 for fuse location.