Pulsafeeder Pulsar DLCM - Manual (Page 27)

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5.10 Fuse Replacement
Although Fuse replacement is not a part of normal installation, it is possible that fuse failure will result
from improper wiring. The DLCM uses a total of 7 user replaceable fuses: 1 for the alarm relay output, 2
for each of the Current Input and Output Channels. The table below details fuse replacement information:
Designator Function Rating Wickman P/N Pulsafeeder P/N
F1 Alarm Relay 1A @ 250VAC WK4048-ND NP5300026-000
F2-7 Current I/O 50mA @ 250VAC WK3022-ND NP5300027-000
Replacement Fuse Information
Figure 11 details the location of these fuses on the Field Wiring Board.
Figure 11. – Fuse Location.
The Internal DLCM power supply is fused at 2 Amps. This fuse is not user serviceable. The DLCM
Stroke Length Adjustment Synchronous Motor is inherently protected. It can operate continuously in a
locked rotor state. The DLCM also monitors this motor's duty cycle to maintain a 50% balance between
ON and OFF times. The serial ports and the Remote Run Status Output are protected by self-resetting
current limit devices. These components are not user serviceable.