PW6K1ICE Wiring and Setup
Memory Backup Battery
PW6K1ICE Installation and Configuration Guide, Document 800-07985V1, Revision A 15
Figure 2-6: Relay Circuit Wiring Diagram
2.12 Memory Backup Battery
The SRAM is backed up by a rechargeable battery when input power is removed. This
battery should retain the data for about 2 weeks. If data in the SRAM is determined to
be corrupt after power up, all data, including flash memory, is considered invalid and
are erased. All configuration data must be re-downloaded.
Note: The initial charge of the battery may take up to 24 hours to be fully charged.
2.13 Status LEDs
Power-up: All LEDs OFF.
Initialization: LEDs 1, 2, 3, 4, 5, 6, and 7 are sequenced during initialization. LEDs 1,
3, and 4 are turned ON for approximately 4 seconds after the hardware initialization
has completed; then the application code is initialized. The amount of time the
application takes to initialize depends on the size of the database; about 3 seconds
without a card database. Each 10,000 cards will add about 3 seconds to the application
initialization. When LEDs 1, 2, 3 and 4 flash at the same time, data is being read from
or written to flash memory. Do not cycle power when in this state.
If the sequence stops or repeats, perform the Bulk Erase Configuration Memory
procedure described in Bulk Erase Configuration Memory, page 11. If clearing the
memory does not correct the initialization problem, contact technical support.
Diode Selection:
• Diode current rating: 1x
strike count
• Diode breakdown voltage:
4x strike voltage
• For 12VDC or 24VDC
strike, diode 1N4002
(100V/1A) typical
MOV Selection:
• Clamp voltage: 1.5x VAC
RMS
• For 24VAC strike,
Panasonic ERZ-
C07DK470 typical
+-
TB6
2-C
NC
NC
NO
1
NO
1-C
O
TB6
1
NO
1-C
NC
NC
NO
2-C
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