Instruction Manual
Publication 351-02003-00B, 06/21/05
Installation • Operation • Maintenance
Auto/Manual Modules
508-00106-00
508-00106-01
508-00106-04
508-00106-07
508-00106-08
508-00106-12
508-00106-17
508-00106-18
508-00106-19
508-00106-20
Kato Engineering Inc.
P.O. Box 8447
Mankato, MN USA
56002-8447
Tel: 507-625-4011
Fax: 507-345-2798
Email: katoengineering@lsusa.com
www.kato-eng.com
Page 1
Note: Because of rapid changes in designs
and processes and the variability of Kato Introduction
Engineering’s products, information in this The auto/manual module is used to provide manual generator excitation
manual must not be regarded as binding control as a backup or the automatic voltage regulator. It is also used as
and is subject to change without notice. an aid in troubleshooting the power system. Two operator controls are
provided:
Auto/Off/Manual Selector Switch
Normal operation of the generator or motor-generator set is in the
Warning: The voltage regulator sensing automatic mode. By moving this switch from AUTO to the MAN
terminals are not disconnected from the position, the operator disconnects the generator field from the automatic
generator when the switch in the MAN or voltage regulator and connects it to the manual control circuitry. In the
OFF positions. Stop the generator set before Off position, neither the regulator nor the manual control is connected to
making connections, repairs or adjustments.
the field, thereby causing the generator voltage to decrease to a minimum
Failing to take such precautions can result in
serious injury or death.
value (unless the generator is paralleled with another source of power).
Manual Voltage Adjust
With the Auto/OFF/Manual switch in the manual position, the operator
can use this control to vary the power fed to the exciter and, in turn, vary
the generator voltage. All Kato auto/manual modules operate in the same
manner. The differences between the various models (the different part
numbers) are summarized in Table 1.
Connections
Make connections as follows (see Figures 1-3):
1. Connect the power source to terminals 1 and 2 of the module. Also
connect power to terminals 7 and 8 on the modules that require dual
inputs.
2. Connect the power input terminals of the voltage regulator to
terminals 3 and 4 of the module.
3. Connect the voltage regulator output to terminals F+ and F- of the
module.
4. Connect the exciter terminals F1 and F2 of the module.
Parts Replacement
If replacement parts are required, order them from the Kato factory.
Please be sure to specify part and serial numbers. The following parts of
the auto/manual module are replaceable:
Name Part number
Rectifier assembly 851-31616-10
Discharge diode assembly. 851-31616-10
Surge suppressor 854-92737-06
Fuse 8 A 515-01208-31
Fuse 4 A 515-01204-31
Fuse 15 A 515-01215-31
Page 2
Voltage regu-
Max Field Fuse Fuse
Part Number Power Input lator compat- Features
Current Rating Qty.
ibility
508-00106-00 120 V 10 A KCR 160 8A 1
KCR 360
KCR 760
KR4F
SR4A
K-65
508-00106-01 Dual 120 V 10 A KCR 760 8A 2
KR7F
SR8A
K-125
508-00106-04 240 V 5A KCR 760 4A 1
KR7F
SR8A
K-125
508-00106-07 120 V 10 A KCR 160 8A 1 Extra contacts available for
KCR 360 customer use
KCR 760
KR4F
SR4A
K-65
508-00106-08 Dual 120 V 10 A KCR 760 8A 2 Extra contacts available for
KR7F customer use
SR8A
K-125
508-00106-12 240 V 5A KCR 760 4A 1 Extra contacts available for
KR7F customer use
SR8A
K-125
508-00106-17 120 V 10 A KCR 160 8A 1
KCR 360
KCR 760
KR4F
SR4A
K-65
508-00106-18 Dual 120 V 10 A KCR 760 8A 2 Customer supplied switch
KR7F
SR8A
K-125
508-00106-19 Dual 120 V 10 A KCR 760 8A 1
KR7F 15 A 1
SR8A
508-00106-20 Dual 120 V 10 A KCR 760 8A 1 Extra contacts available for
KR7F 15 A 1 customer use
SR8A
K-125
Table 1: Differences between models
Page 3
Notes:
1. Single input module - terminal numbers 31
through 38 are optional “dry contacts.”
Dual input module - terminal numbers 31 through
38 are not available as “dry contacts.”
2. Dual input module - terminal numbers 41 through
48 are optional “dry contacts.”
Figure 1: Contacts
Page 4
Figure 2: Wiring diagram for all single input modules
Page 5
Figure 3: Wiring diagram for all dual input modules
Page 6
Figure 4: Mounting dimensions
Page 7
